{"gene":"ZBTB17","run_date":"2026-04-28T23:00:23","timeline":{"discoveries":[{"year":1997,"finding":"Miz-1 (ZBTB17) was identified as a novel zinc finger protein that physically interacts with Msx2, enhancing its DNA-binding affinity for the osteocalcin promoter; Miz-1 itself functions as a sequence-specific DNA-binding transcriptional activator.","method":"Yeast two-hybrid screen, in vitro binding assay, gel shift/DNA binding assays, transcriptional reporter assays","journal":"Mechanisms of development","confidence":"Medium","confidence_rationale":"Tier 2 — reciprocal binding confirmed in vitro + functional reporter assay, single lab","pmids":["9256341"],"is_preprint":false},{"year":1997,"finding":"Miz-1 associates with the carboxy-terminus of Myc and this interaction defines a pathway for transcriptional repression by Myc that is distinct from the Myc/Max complex.","method":"Yeast two-hybrid cloning, co-immunoprecipitation","journal":"Current topics in microbiology and immunology","confidence":"Medium","confidence_rationale":"Tier 3 — original identification by yeast two-hybrid, foundational but early-stage","pmids":["9308237"],"is_preprint":false},{"year":2001,"finding":"Miz-1 binds to the initiator element of the p15INK4b promoter and activates its transcription; Myc and Max form a complex with Miz-1 at this site to repress p15INK4b expression, thereby inhibiting G1 arrest. Myc alleles unable to bind Miz-1 fail to suppress p15INK4b accumulation and are deficient in cell immortalization.","method":"Chromatin immunoprecipitation, reporter assays, Myc point mutants, primary MEF cell-cycle analysis","journal":"Nature cell biology","confidence":"High","confidence_rationale":"Tier 1–2 — multiple orthogonal methods including ChIP, mutagenesis, and primary cell phenotypes; replicated in companion paper","pmids":["11283613"],"is_preprint":false},{"year":2001,"finding":"TGFβ signaling prevents recruitment of Myc to the p15INK4b initiator by Miz-1, relieving repression and allowing a Smad protein complex to contact Miz-1 and transactivate p15INK4b. Thus Miz-1 is a platform that integrates Myc-mediated repression and Smad-mediated activation at the p15INK4b promoter.","method":"Chromatin immunoprecipitation, reporter assays, dominant-negative Smad experiments, gel shift assays","journal":"Nature cell biology","confidence":"High","confidence_rationale":"Tier 1–2 — ChIP, reporter assays, epistasis with Smad pathway; replicated across two labs in companion papers","pmids":["11283614"],"is_preprint":false},{"year":2001,"finding":"Miz-1 is regulated by association with microtubules; it is largely cytoplasmic but accumulates in the nucleus upon microtubule depolymerization. Miz-1 binds directly to the LDLR promoter and activates its transcription.","method":"Indirect immunofluorescence, soft X-ray microscopy, GFP time-lapse imaging, chromatin/promoter binding assays","journal":"Molecular cell","confidence":"Medium","confidence_rationale":"Tier 2 — direct subcellular localization by multiple imaging methods with functional consequence on transcription","pmids":["11545736"],"is_preprint":false},{"year":2002,"finding":"Miz-1 binds to the p21Cip1 core promoter in vivo and is required for upregulation of p21Cip1 upon UV irradiation. Topoisomerase II binding protein (TopBP1) negatively regulates Miz-1 transactivation; UV downregulates TopBP1, releasing Miz-1 to activate p21Cip1. Myc binds Miz-1 at the p21Cip1 promoter to negatively regulate p21Cip1 expression after UV irradiation.","method":"ChIP, c-myc-/- cells, Myc Miz-1-binding point mutant (MycV394D), reporter assays, gene expression analysis","journal":"Molecular cell","confidence":"High","confidence_rationale":"Tier 1–2 — ChIP, genetic knockout, mutagenesis, multiple orthogonal methods in single study","pmids":["12408820"],"is_preprint":false},{"year":2002,"finding":"Miz-1 activates the Nramp1 promoter through initiator elements; c-Myc competes with p300/CBP for binding to Miz-1 to repress Nramp1 transcription.","method":"Reporter assays, co-transfection, promoter deletion analysis, RNAi","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 — multiple promoter assays and competition binding experiments, single lab","pmids":["12110671"],"is_preprint":false},{"year":2002,"finding":"Host cell factor-1 (HCF-1) directly binds to Miz-1, targeting its transactivation domain; HCF-1 represses Miz-1-mediated p15INK4b promoter activation by interfering with recruitment of the coactivator p300 to Miz-1.","method":"Co-immunoprecipitation, GST pulldown, reporter assays, protein-protein interaction domain mapping","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2–3 — reciprocal co-IP and reporter assays, single lab","pmids":["12244100"],"is_preprint":false},{"year":2003,"finding":"Miz1 homologous knockout in mice causes lethality at E7.5 due to massive apoptosis of ectodermal cells and failure to undergo normal gastrulation; p57Kip2 (a Miz1 target gene) is absent in Miz1-/- embryos, while p21Cip1 expression is unaltered, indicating gene-specific transcriptional requirements.","method":"Homologous recombination/gene targeting, in situ hybridization, immunostaining","journal":"Molecular and cellular biology","confidence":"High","confidence_rationale":"Tier 2 — clean KO with defined developmental phenotype and target gene analysis","pmids":["14560010"],"is_preprint":false},{"year":2003,"finding":"IRF-8 interacts with Miz-1 in immune cells; together with PU.1, this complex binds the Nramp1 promoter and mediates its macrophage-specific expression.","method":"Yeast two-hybrid, co-immunoprecipitation, ChIP","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2–3 — yeast two-hybrid confirmed by co-IP and ChIP, single lab","pmids":["12904288"],"is_preprint":false},{"year":2003,"finding":"Miz-1 and c-Myc form a repressor complex at the Mad4 initiator element to suppress Mad4 expression in proliferating cells; loss of this complex during differentiation allows Mad4 activation.","method":"Reporter assays, EMSA/gel shift, cell differentiation model","journal":"The Biochemical journal","confidence":"Medium","confidence_rationale":"Tier 2 — reporter + binding assays, single lab","pmids":["12418961"],"is_preprint":false},{"year":2004,"finding":"Akt phosphorylates Miz1, enabling 14-3-3η to bind Miz1's DNA-binding domain and inhibit its transcriptional activating function; this regulates recovery from DNA-damage-induced cell-cycle arrest. Miz1 has two distinct functions in DNA damage: c-Myc-regulated gene upregulation, and 14-3-3η/Akt-regulated gene repression.","method":"Co-immunoprecipitation, kinase assays, domain mapping, cell-cycle analysis","journal":"Nature cell biology","confidence":"High","confidence_rationale":"Tier 1–2 — kinase assay, co-IP, domain mutants, and functional phenotype; single lab but multiple methods","pmids":["15580267"],"is_preprint":false},{"year":2004,"finding":"MAGE-A4 C-terminal fragment (cleaved by caspase-induced processing) binds Miz-1 and is recruited to the p21Cip1 promoter via Miz-1, downregulating p21Cip1 transcription and inducing apoptosis.","method":"Yeast two-hybrid, co-immunoprecipitation, ChIP, reporter assays","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2–3 — yeast two-hybrid confirmed by co-IP and ChIP, single lab","pmids":["14739298"],"is_preprint":false},{"year":2005,"finding":"BCL6 interacts with Miz-1 and, via Miz-1, binds the CDKN1A (p21) promoter to suppress transcription and prevent p53-independent cell cycle arrest in germinal center B cells.","method":"Co-immunoprecipitation, ChIP, reporter assays, germinal center B cell functional analysis","journal":"Nature immunology","confidence":"High","confidence_rationale":"Tier 2 — reciprocal co-IP, ChIP, and functional B cell phenotype; replicated in subsequent studies","pmids":["16142238"],"is_preprint":false},{"year":2005,"finding":"Miz-1 inactivation by c-Myc is required for apoptosis induction by Myc in primary diploid human fibroblasts under growth factor withdrawal, but Miz-1 inactivation is dispensable for Myc-induced cell cycle progression and transformation.","method":"shRNA knockdown, MycV394D mutant defective in Miz-1 binding, apoptosis and cell-cycle assays","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 2 — genetic epistasis with Myc mutant and RNAi, clean phenotypic separation, single lab","pmids":["16352593"],"is_preprint":false},{"year":2005,"finding":"Pontin (Tip49) and Reptin (Tip48) interact with c-Myc and function as co-repressors in the c-Myc/Miz-1 pathway to repress p21 expression and control cell proliferation in Xenopus embryos.","method":"Xenopus embryo overexpression/knockdown, rescue with c-Myc RNA and dominant-negative Miz-1, reporter assays","journal":"Mechanisms of development","confidence":"Medium","confidence_rationale":"Tier 2 — genetic epistasis in Xenopus model with reporter assays, single lab","pmids":["15804567"],"is_preprint":false},{"year":2006,"finding":"MIZ-1 activates BCL2 transcription; c-MYC binding and inactivation of MIZ-1 represses BCL2, and this repression is the essential consequence of MIZ-1 targeting during Myc-induced apoptosis.","method":"shRNA knockdown of Miz-1, Myc mutant defective in Miz-1 binding, BCL2 inhibitor rescue, reporter assays","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 2 — multiple genetic approaches (shRNA, mutant Myc, small molecule inhibitor rescue), single lab","pmids":["17082179"],"is_preprint":false},{"year":2006,"finding":"Myc-Miz1 complex regulates keratinocyte adhesion and TGFβ responsiveness; Miz1 is required for Myc to decrease keratinocyte adhesion and spreading. Target genes include α6 and β1 integrins, directly bound by both Myc and Miz1 in vivo. Miz1-dependent regulation is required for Myc-induced premature differentiation in reconstituted epidermis.","method":"MycV394D mutant, ChIP, reconstituted epidermis, keratinocyte adhesion assays, integrin overexpression rescue","journal":"The Journal of cell biology","confidence":"High","confidence_rationale":"Tier 2 — ChIP, mutagenesis, and functional rescue experiments, single lab","pmids":["16391002"],"is_preprint":false},{"year":2007,"finding":"Crystal structure of the Miz-1 POZ domain at 2.1 Å resolution reveals a tetrameric organization with two types of subunit interfaces: an α-helical dimerization interface and a novel β-sheet interface that directs tetramerization of two POZ domain dimers in solution.","method":"X-ray crystallography, solution studies confirming β-sheet interface mediates tetramerization","journal":"Journal of molecular biology","confidence":"High","confidence_rationale":"Tier 1 — crystal structure with solution validation of tetramerization interface","pmids":["17880999"],"is_preprint":false},{"year":2008,"finding":"Miz1 is required for recruitment of TopBP1 to chromatin and for protection of TopBP1 from proteasomal degradation by the HectH9 ubiquitin ligase; Myc antagonizes TopBP1 binding to Miz1, causing TopBP1 dissociation from chromatin and attenuation of ATR-dependent checkpoint signaling.","method":"Co-immunoprecipitation, chromatin fractionation, proteasome inhibition, Myc overexpression","journal":"The EMBO journal","confidence":"High","confidence_rationale":"Tier 2 — mechanistic pathway with biochemical fractionation, co-IP, and functional checkpoint readout","pmids":["18923429"],"is_preprint":false},{"year":2008,"finding":"Myc promotes neural progenitor cell self-renewal through Miz-1; a Myc mutant (MycV394D) deficient in Miz-1 binding does not increase self-renewing cells though it still stimulates proliferation, demonstrating the Miz-1 interaction specifically mediates the self-renewal effect.","method":"Retroviral transduction, MycV394D mutant, neurosphere self-renewal assays","journal":"Journal of cell science","confidence":"Medium","confidence_rationale":"Tier 2 — genetic separation of function using Myc point mutant, single lab","pmids":["19001505"],"is_preprint":false},{"year":2009,"finding":"BCL6 interacts with Miz-1 to bind the BCL2 promoter and suppresses Miz1-induced BCL2 expression in germinal center B cells; this BCL6-Miz1-mediated BCL2 suppression is lost in follicular lymphoma and DLBCL.","method":"Co-immunoprecipitation, ChIP, reporter assays, B cell functional studies","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 2 — reciprocal co-IP, ChIP, and reporter assays confirming direct pathway","pmids":["19549844"],"is_preprint":false},{"year":2009,"finding":"Gfi-1 represses CDKN2B (p15INK4B) by interacting with Miz-1 and being recruited to the CDKN2B core promoter via Miz-1, not via direct DNA binding. Gfi-1 and c-Myc collaborate through Miz-1 on the CDKN2B promoter.","method":"Co-immunoprecipitation, ChIP, reporter assays, Gfi-1 knockdown","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 2 — reciprocal co-IP, ChIP, and knockdown with gene expression readout","pmids":["19164764"],"is_preprint":false},{"year":2009,"finding":"Miz1 selectively suppresses TNF-α-induced JNK1 activation (but not IL-1β- or UV-induced JNK activation) independently of its transcriptional activity; Miz1 inhibits TRAF2 K63-linked polyubiquitination. Upon TNF-α stimulation, Miz1 undergoes proteasomal degradation to relieve JNK1 suppression.","method":"Miz1-/- MEFs, reconstitution with transcription-deficient Miz1 mutant, JNK activity assays, TRAF2 ubiquitination assays","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 2 — genetic KO with defined pathway, transcription-independent mechanism confirmed by mutant, multiple signaling assays","pmids":["19815509"],"is_preprint":false},{"year":2009,"finding":"ARF interacts with Miz-1 (via Miz-1's zinc finger domain) and counteracts Miz-1-mediated inhibition of p53 transcriptional activity. Miz-1 binds p53 through its DNA-binding domain and reduces p53 promoter occupancy; ARF and p53 competitively bind Miz-1.","method":"Yeast two-hybrid, in vitro binding assay, competitive ChIP, reporter assays","journal":"Oncogene","confidence":"Medium","confidence_rationale":"Tier 2–3 — yeast two-hybrid confirmed by in vitro binding and competitive ChIP, single lab","pmids":["19901969"],"is_preprint":false},{"year":2010,"finding":"The Myc-Miz1 interaction is continuously required in established T-cell lymphomas to repress CKI expression and prevent accumulation of trimethylated H3K9, a senescence marker. TGFβ autocrine signaling induces CKI expression and senescence when Myc is suppressed; Myc/Miz1 interaction antagonizes this TGFβ-induced senescence program.","method":"MycV394D mutant lymphoma model, Myc suppression, ChIP for H3K9me3, TGFβ pathway analysis","journal":"Genes & development","confidence":"High","confidence_rationale":"Tier 2 — genetic epistasis with Myc mutant in tumor model, ChIP, and pathway analysis; single lab","pmids":["20551174"],"is_preprint":false},{"year":2010,"finding":"Arf interacts with Miz1, disrupts Miz1-nucleophosmin co-activator interaction, induces sumoylation of Miz1, and promotes assembly of a heterochromatic complex containing Myc and H3K9me3 at Miz1 target loci, leading to repression of cell adhesion genes and induction of apoptosis.","method":"Co-immunoprecipitation, sumoylation assay, ChIP for H3K9me3, gene expression analysis, apoptosis assays","journal":"The Journal of cell biology","confidence":"High","confidence_rationale":"Tier 2 — multiple biochemical assays with defined cellular outcome, single lab","pmids":["20308430"],"is_preprint":false},{"year":2010,"finding":"Mule (HectH9) is the E3 ubiquitin ligase that catalyzes K48-linked polyubiquitination of Miz1 upon TNF-α stimulation, targeting Miz1 for proteasomal degradation and thereby relieving Miz1-mediated suppression of JNK activation.","method":"Co-immunoprecipitation, in vitro ubiquitination assays, Mule siRNA, Miz1 degradation assays","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 1–2 — in vitro ubiquitination assay with defined E3, confirmed by siRNA, single lab","pmids":["20624960"],"is_preprint":false},{"year":2010,"finding":"Gfi-1 interacts with Miz-1 and forms a ternary complex with c-Myc on the CDKN1A core promoter to repress p21Cip1 expression, independent of Gfi-1's direct DNA binding activity.","method":"Co-immunoprecipitation, ChIP, reporter assays, Gfi-1 knockdown","journal":"Oncogene","confidence":"Medium","confidence_rationale":"Tier 2 — co-IP and ChIP confirming ternary complex, single lab","pmids":["20190815"],"is_preprint":false},{"year":2010,"finding":"The Miz-1 BTB/POZ domain crystal structure was solved at 2.6 Å, revealing a strand-swapped dimer with a shorter N-terminus unable to form the interchain sheet characteristic of classical BTB dimers.","method":"X-ray crystallography, cysteine cross-linking in solution","journal":"Journal of molecular biology","confidence":"High","confidence_rationale":"Tier 1 — crystal structure with solution validation","pmids":["20493880"],"is_preprint":false},{"year":2010,"finding":"Miz1 (Zbtb17) lacking its POZ domain causes nearly complete absence of follicular B cells due to failure to activate the JAK-STAT5 pathway upon IL-7 stimulation. Miz-1 directly represses SOCS1 and activates Bcl2; combined re-expression of Bcl2 and Ebf1 rescues B cell development.","method":"Conditional knockout (Zbtb17ΔPOZ/ΔPOZ), Jak-Stat5 signaling assays, ChIP, genetic rescue experiments","journal":"Immunity","confidence":"High","confidence_rationale":"Tier 2 — clean KO with defined signaling phenotype, ChIP, and epistatic rescue","pmids":["21167753"],"is_preprint":false},{"year":2010,"finding":"A SP1/MIZ1/MYCN repression complex recruits HDAC1 to the TRKA and p75NTR promoters to repress their transcription in neuroblastoma cells.","method":"ChIP, co-immunoprecipitation, reporter assays, HDAC inhibitor TSA","journal":"Cancer research","confidence":"High","confidence_rationale":"Tier 2 — ChIP and co-IP with defined complex composition and epigenetic mechanism","pmids":["21123453"],"is_preprint":false},{"year":2011,"finding":"Miz-1 (Zbtb17ΔPOZ) is required for IL-7R-dependent survival and differentiation of early T-lineage progenitors; Miz-1 binds the SOCS1 promoter to repress it, enabling STAT5 activation and Bcl2 upregulation. Overexpression of Bcl-2 or SOCS1 inhibition restores pro-T cell numbers.","method":"Conditional knockout, ChIP, STAT5 phosphorylation assays, genetic rescue with Bcl2 transgene and SOCS1 siRNA","journal":"Blood","confidence":"High","confidence_rationale":"Tier 2 — clean KO, ChIP, and genetic rescue demonstrating pathway","pmids":["21258009"],"is_preprint":false},{"year":2011,"finding":"Site-specific K48-linked polyubiquitination of Miz1 at Lys388 and Lys472 (promoted by TRAF2 upon TNF-α stimulation) is required for Miz1 degradation and de-repression of JNK activation; a non-degradable Miz1 mutant (K388R/K472R) significantly suppresses TNF-α-induced JNK1 activation.","method":"Mutagenesis of ubiquitination sites, in vivo ubiquitination assays, JNK activity assays","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 1–2 — mutagenesis of specific ubiquitination sites with functional readout, mechanistically precise","pmids":["22184250"],"is_preprint":false},{"year":2011,"finding":"Myc and Miz-1 co-occupy Hox gene promoters in human ES cells and together suppress differentiation-promoting genes to maintain pluripotency; Myc and Miz-1 proteins interact and associate with corepressor factors in ES cells.","method":"ChIP-chip, Myc/Miz-1 knockdown, co-immunoprecipitation","journal":"Epigenetics & chromatin","confidence":"Medium","confidence_rationale":"Tier 2 — ChIP-chip and co-IP, single lab","pmids":["22053792"],"is_preprint":false},{"year":2011,"finding":"Miz-1 is required at the pre-TCR β-selection checkpoint; Miz-1-deficient DN3 cells fail to express pre-TCR at the surface and show elevated expression of p53 target genes. Only combined re-expression of rearranged TCRαβ and Bcl2 rescues the block.","method":"Conditional knockout, gene expression analysis, genetic rescue","journal":"Journal of immunology","confidence":"High","confidence_rationale":"Tier 2 — clean KO with defined checkpoint block and epistatic genetic rescue","pmids":["21841135"],"is_preprint":false},{"year":2013,"finding":"Miz-1 activates transcription upon binding a non-palindromic sequence in core promoters; Miz1 target genes include regulators of autophagy and vesicular transport. Deletion of Miz1 POZ domain in CNS causes defective autophagic flux and cerebellar neurodegeneration.","method":"ChIP-Seq, biochemical analysis, Nestin-Cre conditional knockout, autophagy flux assays (p62/ubiquitin accumulation)","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 2 — ChIP-seq genome-wide analysis, conditional KO with defined cellular phenotype","pmids":["24088869"],"is_preprint":false},{"year":2013,"finding":"Miz1 suppresses LPS-induced inflammation by being phosphorylated at Ser178 after stimulation, enabling recruitment of HDAC1 to the C/EBP-δ gene promoter to repress its transcription and terminate the inflammatory response.","method":"Conditional POZ-domain knockout mouse, phosphorylation site mutagenesis, ChIP for HDAC1, inflammatory cytokine assays","journal":"Nature immunology","confidence":"High","confidence_rationale":"Tier 1–2 — mutagenesis of phosphorylation site, ChIP, and in vivo phenotype; single lab","pmids":["23525087"],"is_preprint":false},{"year":2013,"finding":"In vivo, Mule/Huwe1 suppresses Ras-driven tumorigenesis by preventing accumulation of c-Myc/Miz1 transcriptional complexes that repress p21 and p15; Mule-deficient keratinocyte tumorigenesis could be reversed by concomitant c-Myc knockout or Miz1 knockdown.","method":"Conditional knockout mouse (K14Cre;Mule flox/flox), Miz1 knockdown, genetic epistasis with c-Myc KO","journal":"Genes & development","confidence":"High","confidence_rationale":"Tier 2 — in vivo genetic epistasis with multiple KO combinations and defined phenotype","pmids":["23699408"],"is_preprint":false},{"year":2013,"finding":"Miz1 regulates Hedgehog signaling by binding Smo and Gli2; Miz1 overexpression increases Gli reporter activity, and Smo activation induces Miz1 translocation to primary cilia with Smo and Gli2. Miz1 translocates to the nucleus in a Smo-dependent manner and is required for Gli2 nuclear translocation.","method":"Co-immunoprecipitation, Gli reporter assays, confocal imaging of primary cilia, Miz1 knockdown, allograft tumor model","journal":"PloS one","confidence":"Medium","confidence_rationale":"Tier 2–3 — co-IP, imaging, and reporter assays; single lab","pmids":["23671675"],"is_preprint":false},{"year":2014,"finding":"Miz-1 directly activates the ribosomal protein L22 (Rpl22) gene; Rpl22 protein binds p53 mRNA and negatively regulates its translation, thereby limiting p53-dependent apoptosis in pro-B and DN3a pre-T cells undergoing V(D)J recombination.","method":"ChIP, gene expression analysis, conditional KO, Rpl22 rescue experiments, translational assays","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 2 — ChIP, KO, and mechanistic translational regulation assay","pmids":["25468973"],"is_preprint":false},{"year":2014,"finding":"Crystal structures of heterodimeric POZ domains of Miz1/BCL6 and Miz1/NAC1 were solved, revealing the structural basis for POZ domain heteromeric interactions relevant to B-cell lymphoma and ovarian carcinoma.","method":"X-ray crystallography of forced heterodimers, tethered POZ domain purification strategy","journal":"Acta crystallographica Section F","confidence":"High","confidence_rationale":"Tier 1 — crystal structures of two heterodimeric POZ domain complexes","pmids":["25484205"],"is_preprint":false},{"year":2014,"finding":"Nac1 interacts with Miz1 through a heterodimeric POZ domain interaction, relocalizes Miz1 to nuclear bodies, and suppresses p21Cip1 expression; Nac1 knockdown increases Miz1 target gene p21Cip1 in ovarian cancer cells.","method":"Chemical crosslinking, co-immunoprecipitation, confocal imaging, siRNA knockdown with p21 expression analysis","journal":"Bioscience reports","confidence":"Medium","confidence_rationale":"Tier 2–3 — crosslinking + co-IP + functional readout, single lab","pmids":["24702277"],"is_preprint":false},{"year":2014,"finding":"EBNA3A interacts with Miz-1 in EBV-infected cells, causes a fraction of Miz-1 to translocate from cytoplasm to nucleus, forms a trimeric complex with Miz-1 on its recognition DNA element, prevents Miz-1-nucleophosmin interaction, and represses CDKN2B transcription with H3K27 repressive marks.","method":"Co-immunoprecipitation at endogenous levels, EMSA, ChIP for H3K27me3, gene expression analysis","journal":"Nucleic acids research","confidence":"High","confidence_rationale":"Tier 2 — endogenous co-IP, EMSA, ChIP, single lab","pmids":["25092922"],"is_preprint":false},{"year":2015,"finding":"ZBTB17 (Miz1) interacts with cysteine and glycine-rich protein 3 (CSRP3/MLP) by yeast 2-hybrid; cardiac myocyte-specific Zbtb17 deletion in mice causes cardiomyopathy and fibrosis after biomechanical stress. ZBTB17 protects cardiomyocytes from apoptosis and regulates hypertrophy in a calcineurin-dependent manner.","method":"Yeast two-hybrid, conditional cardiac-specific knockout, biomechanical stress model, apoptosis and hypertrophy assays","journal":"Circulation. Cardiovascular genetics","confidence":"Medium","confidence_rationale":"Tier 2 — conditional KO with defined cardiac phenotype; calcineurin dependence shown in vitro and in vivo","pmids":["26175529"],"is_preprint":false},{"year":2016,"finding":"MYC/MIZ1 complex represses core circadian clock genes BMAL1 (ARNTL), CLOCK, and NPAS2, thereby attenuating the circadian clock and promoting cell proliferation; this requires formation of repressive MYC-MIZ1 complexes.","method":"MYC overexpression/knockdown, MycV394D mutant, reporter assays, gene expression in lymphoma samples","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 2 — genetic separation of function using Myc mutant, multiple gene targets, clinical correlation","pmids":["27339797"],"is_preprint":false},{"year":2016,"finding":"Myc/Miz1 interaction distinguishes medulloblastoma subgroup identity; Myc binds Miz1 strongly (unlike MycN) and suppresses ciliogenesis and reprograms GNP transcriptome through Miz1-dependent repression. Genetic disruption of Myc/Miz1 interaction inhibited Group 3 medulloblastoma development.","method":"MycV394D mutant mouse models, ChIP, gene expression profiling, tumor development assays","journal":"Cancer cell","confidence":"High","confidence_rationale":"Tier 2 — in vivo genetic epistasis with defined tumor phenotype and ChIP","pmids":["26766587"],"is_preprint":false},{"year":2016,"finding":"NMR structural analysis revealed that Miz-1 zinc fingers 3 and 4 form an unusual compact structure that restricts DNA binding of the first four ZF modules; an A86K mutation disrupts this compact structure and increases DNA-binding affinity 30-fold, suggesting ZFs 3–4 function to prevent nonspecific DNA binding during sequence scanning.","method":"NMR (2D 1H-1H), mutagenesis (A86K), DNA binding affinity measurements","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 1 — NMR structure with functional mutagenesis validation","pmids":["28035002"],"is_preprint":false},{"year":2017,"finding":"Miz1 controls Schwann cell proliferation by directly repressing the H3K36me2 demethylase Kdm8; loss of Miz1 POZ domain releases Kdm8 repression, causing decreased H3K36me2 at cell-cycle genes and re-entry of adult Schwann cells into the cell cycle, leading to peripheral neuropathy.","method":"Conditional POZ-domain knockout in Schwann cells, RNA-seq, ChIP, Kdm8 expression analysis","journal":"The Journal of neuroscience","confidence":"High","confidence_rationale":"Tier 2 — conditional KO, RNA-seq, ChIP, defined epigenetic mechanism","pmids":["29217679"],"is_preprint":false},{"year":2020,"finding":"Miz1 acts as a negative regulator of NF-κB signaling in lung epithelial cells; loss of Miz1 causes sustained NF-κB activation and a COPD-like phenotype. Concomitant partial loss of NF-κB/RelA prevents COPD-like phenotype in Miz1-deficient mice. Miz1 also represses ACE2 expression in lung epithelium.","method":"Lung epithelial conditional knockout, NF-κB/RelA compound knockout, gene expression analysis","journal":"Science advances","confidence":"High","confidence_rationale":"Tier 2 — conditional KO with double-mutant epistasis defining NF-κB pathway, in vivo phenotype","pmids":["32851183"],"is_preprint":false},{"year":2020,"finding":"Myc-Miz1-mediated transcriptional repression of Cebpα and Cebpδ is required for maintaining undifferentiated state and self-renewal capacity of leukemia stem cells in AML; MycV394D (Miz1-binding deficient) AML cells are partially differentiated with reduced LSC frequency.","method":"MycV394D mutant, MLL-AF9 AML mouse model, colony-forming assay, serial transplantation, gene expression","journal":"Blood","confidence":"High","confidence_rationale":"Tier 2 — in vivo leukemia model with Myc mutant, genetic epistasis, mechanistic target identification","pmids":["32040550"],"is_preprint":false},{"year":2020,"finding":"Miz1 was identified as an essential regulator of diphthamide biosynthesis via genome-wide CRISPR screen; Miz1 binds directly to the Dph1 proximal promoter via an evolutionarily conserved consensus site to activate Dph1 transcription.","method":"Genome-wide CRISPR KO screen, ChIP, reporter assays, promoter binding analysis","journal":"PLoS genetics","confidence":"High","confidence_rationale":"Tier 1–2 — saturating genome-wide screen with mechanistic follow-up by ChIP and mutagenesis","pmids":["33057331"],"is_preprint":false},{"year":2021,"finding":"Miz1 sequestrates oncoprotein metadherin (MTDH) in hepatocytes independently of its transcriptional activity, preventing MTDH from promoting NF-κB activation; hepatocyte-specific Miz1 deletion promotes pro-inflammatory cytokine production, macrophage polarization toward pro-inflammatory phenotypes, and HCC.","method":"Hepatocyte-specific Miz1 knockout, co-immunoprecipitation with MTDH, NF-κB activation assays","journal":"Immunity","confidence":"High","confidence_rationale":"Tier 2 — conditional KO, co-IP defining non-transcriptional mechanism, defined cellular phenotype","pmids":["34038747"],"is_preprint":false},{"year":2021,"finding":"MYC suppresses loading of nuclear-derived dsRNA onto TLR3 and its subsequent lysosomal degradation via association with MIZ1; MYC/MIZ1 complex suppresses TBK1 activation and downstream MHC class I expression in PDAC, enabling immune evasion.","method":"MYC deletion in PDAC mouse model, TBK1 KO rescue, dsRNA vesicular trafficking analysis, MIZ1 co-association","journal":"Cancer research","confidence":"High","confidence_rationale":"Tier 2 — genetic KO in mouse model, mechanistic pathway defined with multiple genetic epistasis","pmids":["34145038"],"is_preprint":false},{"year":2021,"finding":"Miz1 directly binds to and represses the ACE2 promoter in mouse and human lung epithelial cells.","method":"ChIP, reporter assays in lung epithelial cells","journal":"Frontiers in immunology","confidence":"Medium","confidence_rationale":"Tier 2 — direct ChIP evidence plus reporter assay, single lab","pmids":["34305888"],"is_preprint":false},{"year":2021,"finding":"MXD proteins activate transcription of Miz1 target genes p15 and p21 by interacting with MIZ1; MXD mutants deficient in MIZ1 binding cannot activate MYC-repressed genes even while retaining MAX interaction.","method":"Reporter assays, MXD/MIZ1 binding mutants, DNA binding assays","journal":"FEBS letters","confidence":"Medium","confidence_rationale":"Tier 2 — separation-of-function mutants with reporter assays, single lab","pmids":["33914337"],"is_preprint":false},{"year":2022,"finding":"Miz1 promotes KRAS-driven lung tumorigenesis by directly binding the Pcdh10 promoter to repress its expression; silencing Pcdh10 rescues the anti-proliferative and anti-tumorigenic effects of Miz1 loss in mutant KRAS tumor cells.","method":"Conditional KO in KRAS mouse model, ChIP, RNA-seq, Pcdh10 rescue experiments","journal":"Cancer letters","confidence":"High","confidence_rationale":"Tier 2 — ChIP, genetic epistasis with Pcdh10 rescue both in vitro and in vivo, single lab","pmids":["36538983"],"is_preprint":false},{"year":2022,"finding":"Miz1 directly represses IL-12 in lung epithelial cells and dendritic cells by binding the Il12 promoter and recruiting HDAC1, thereby preventing Th1 skewing and promoting allergic asthma pathogenesis.","method":"Cell-specific conditional KO, ChIP-seq, ChIP-qPCR, HDAC1 recruitment assays, cytokine measurement","journal":"American journal of respiratory cell and molecular biology","confidence":"High","confidence_rationale":"Tier 2 — ChIP-seq, conditional KO in specific cell types, epigenetic mechanism defined","pmids":["35833903"],"is_preprint":false},{"year":2023,"finding":"ZBTB17 interacts with nuclear receptor RXRA; ZBTB17 knockdown activates RXRA-dependent ITPR2-mediated intracellular calcium signaling, causing mitochondrial dysfunction, ROS accumulation, DNA damage, and cellular senescence.","method":"Co-immunoprecipitation, ZBTB17 knockdown, calcium imaging, ITPR2 knockdown epistasis","journal":"FASEB journal","confidence":"Medium","confidence_rationale":"Tier 2–3 — co-IP and functional pathway with genetic epistasis, single lab","pmids":["37698375"],"is_preprint":false},{"year":2023,"finding":"Miz1 binds peroxiredoxin 6 (PRDX6) in hepatocyte cytosol, retaining it there and blocking its interaction with mitochondrial Parkin at Cys431, thereby enabling Parkin-mediated mitophagy. In NASH, TNFα-induced E3-ubiquitination of Miz1 causes its degradation, releasing PRDX6 to inhibit mitophagy and propagate a TNFα/Miz1 positive feedback loop.","method":"Co-immunoprecipitation, mass spectrometry, hepatocyte-specific Miz1 KO, human NASH liver organoids, mitophagy assays","journal":"Journal of hepatology","confidence":"High","confidence_rationale":"Tier 2 — co-IP/MS identifying binding partner, conditional KO, organoid validation, mechanistic loop defined","pmids":["37040844"],"is_preprint":false},{"year":2024,"finding":"MIZ1 induces TMBIM4 (an anti-apoptotic protein that regulates IP3R-mediated Ca2+ mobilization downstream of BCR signaling) specifically in IgG1+ GC B cells; MIZ1-TMBIM4 axis prevents excessive Ca2+ accumulation and mitochondrial dysfunction specifically in IgG1+ B cells during positive selection.","method":"CRISPR-Cas9 screen in GC B cells, conditional mouse genetics, Ca2+ mobilization assays, mitochondrial function assays","journal":"Science immunology","confidence":"High","confidence_rationale":"Tier 1–2 — genome-wide CRISPR screen plus conditional genetics, mechanistic Ca2+ pathway defined","pmids":["38579014"],"is_preprint":false},{"year":2024,"finding":"Miz1 epigenetically represses Ifna and Ifnb gene promoters by recruiting HDAC1; during influenza A virus infection, CUL4B-mediated ubiquitination and degradation of Mule (HUWE1) leads to Miz1 accumulation, which limits type I IFN production and favors viral replication.","method":"Miz1 loss-of-function in mouse lung epithelial cells, ChIP for HDAC1, in vitro and in vivo IAV infection, Mule/CUL4B degradation assays","journal":"Science signaling","confidence":"High","confidence_rationale":"Tier 2 — ChIP, KO phenotype, and mechanistic degradation pathway defined in vitro and in vivo","pmids":["38593156"],"is_preprint":false}],"current_model":"ZBTB17/MIZ1 is a BTB/POZ zinc finger transcription factor that functions as a transcriptional activator of cell cycle inhibitors (p15INK4b, p21Cip1, p57Kip2), anti-apoptotic genes (BCL2), and immune pathway genes (Bcl2 via IL-7R/STAT5, Rpl22, Dph1, TMBIM4, SOCS1 repression), but switches to a transcriptional repressor when its coactivators (nucleophosmin, p300) are displaced by binding partners such as c-MYC, BCL6, Gfi-1, or MYCN, which recruit it to initiator/core promoter elements; MIZ1 also exerts transcription-independent functions (sequestration of MTDH to suppress NF-κB, cytosolic retention of PRDX6 to promote mitophagy, and suppression of TRAF2 ubiquitination to restrain JNK1 activation), and its activity is regulated post-translationally through Akt-mediated phosphorylation enabling 14-3-3η binding, Ser178 phosphorylation enabling HDAC1 recruitment for gene repression, and K48-linked polyubiquitination by Mule/HUWE1 targeting it for proteasomal degradation downstream of TNF-α or viral infection signals."},"narrative":{"teleology":[{"year":1997,"claim":"Identification of MIZ1 as a zinc finger transcriptional activator that physically interacts with Myc established the foundational concept that Myc can repress transcription through a partner distinct from Max.","evidence":"Yeast two-hybrid, co-IP, and reporter assays in two independent studies","pmids":["9256341","9308237"],"confidence":"Medium","gaps":["No endogenous target genes identified yet","Mechanism of Myc-mediated repression through MIZ1 undefined"]},{"year":2001,"claim":"Discovery that MIZ1 binds initiator elements of p15INK4b and activates its transcription — with Myc/Max displacing coactivators to repress it — and that TGFβ/Smad signaling relieves this repression, established MIZ1 as a signal-integrating transcriptional platform at CDK inhibitor promoters.","evidence":"ChIP, reporter assays, Myc point mutants, primary MEF phenotypes, Smad epistasis across companion papers","pmids":["11283613","11283614"],"confidence":"High","gaps":["MIZ1 DNA-binding specificity/consensus not yet defined","Whether this mechanism extends to other CKI promoters unknown"]},{"year":2002,"claim":"Extension to p21Cip1 and identification of p300 and TopBP1 as coactivator and negative regulator, respectively, revealed a general mechanism: MIZ1 activates CKI transcription at core promoters, with Myc and other repressors competing for coactivator binding sites.","evidence":"ChIP in c-myc−/− cells, MycV394D mutant, UV irradiation, Nramp1 promoter competition assays","pmids":["12408820","12110671"],"confidence":"High","gaps":["Whether p300 displacement is sufficient or HDAC recruitment is also required","Full set of MIZ1 coactivators not determined"]},{"year":2003,"claim":"Miz1 knockout lethality at E7.5 with ectodermal apoptosis and loss of p57Kip2 demonstrated that MIZ1 is essential for embryonic survival and has gene-specific, non-redundant transcriptional functions in vivo.","evidence":"Homologous recombination knockout, in situ hybridization, immunostaining in mouse embryos","pmids":["14560010"],"confidence":"High","gaps":["Which of many possible target genes mediate the apoptosis phenotype","Tissue-specific functions beyond ectoderm undefined"]},{"year":2004,"claim":"Discovery that Akt phosphorylates MIZ1 to enable 14-3-3η binding and inhibit DNA binding revealed the first post-translational regulatory mechanism controlling MIZ1 activity, linking growth factor signaling to DNA damage checkpoint recovery.","evidence":"Kinase assays, co-IP, domain mapping, cell-cycle analysis","pmids":["15580267"],"confidence":"High","gaps":["Specific phosphorylation sites on MIZ1 not fully mapped","Whether other kinases regulate MIZ1 unknown"]},{"year":2005,"claim":"Demonstration that BCL6 binds MIZ1 to repress p21 in germinal center B cells, and that Myc inactivation of MIZ1 is specifically required for Myc-induced apoptosis (via BCL2 repression) but dispensable for proliferation, functionally separated MIZ1-dependent transcriptional programs.","evidence":"Reciprocal co-IP, ChIP, MycV394D separation-of-function mutant, shRNA, BCL2 inhibitor rescue","pmids":["16142238","16352593","17082179"],"confidence":"High","gaps":["How BCL6 versus Myc are differentially recruited to MIZ1 at overlapping promoters","Role of MIZ1 in lymphomagenesis not yet tested in vivo"]},{"year":2007,"claim":"Crystal structure of the MIZ1 POZ domain revealing a tetrameric architecture with a novel β-sheet dimerization interface provided the structural basis for understanding MIZ1 oligomerization and heteromeric interactions with BCL6 and NAC1.","evidence":"X-ray crystallography at 2.1 Å with solution validation; later structures of heterodimers at 2.6 Å","pmids":["17880999","20493880","25484205"],"confidence":"High","gaps":["No structure of full-length MIZ1 or MIZ1-DNA complex","How POZ tetramerization affects promoter binding in vivo unclear"]},{"year":2009,"claim":"Identification of a transcription-independent function — MIZ1 suppresses TNFα-induced JNK1 by inhibiting TRAF2 K63-linked ubiquitination, with TNFα triggering MIZ1 proteasomal degradation to relieve this suppression — established MIZ1 as a dual-function protein operating beyond transcription.","evidence":"Miz1−/− MEFs reconstituted with transcription-deficient mutant, TRAF2 ubiquitination assays, JNK assays","pmids":["19815509"],"confidence":"High","gaps":["How MIZ1 inhibits TRAF2 ubiquitination mechanistically","Whether other non-transcriptional functions exist (later confirmed)"]},{"year":2010,"claim":"Mule/HUWE1 was identified as the E3 ligase catalyzing K48-linked polyubiquitination of MIZ1 at Lys388/Lys472 upon TNFα, providing the degradation mechanism that connects TNFα signaling to JNK1 de-repression; in vivo, Mule suppresses Ras-driven tumorigenesis by preventing accumulation of Myc/MIZ1 repressor complexes.","evidence":"In vitro ubiquitination with defined E3, mutagenesis of K388/K472, Mule siRNA, conditional KO mouse with genetic epistasis","pmids":["20624960","22184250","23699408"],"confidence":"High","gaps":["Whether additional E3 ligases target MIZ1 in other contexts","Site-specific ubiquitination in non-TNFα settings not mapped"]},{"year":2010,"claim":"Conditional MIZ1 POZ-domain deletion in immune cells showed MIZ1 is essential for B and T cell development by repressing SOCS1 to enable IL-7R/STAT5 signaling and BCL2 expression, establishing MIZ1 as a master regulator of lymphocyte survival.","evidence":"Conditional Zbtb17ΔPOZ/ΔPOZ knockout, ChIP, STAT5 phosphorylation, genetic rescue with Bcl2 and SOCS1 siRNA","pmids":["21167753","21258009"],"confidence":"High","gaps":["Whether MIZ1 regulates additional cytokine receptor pathways beyond IL-7R","MIZ1 role in mature lymphocyte function not yet explored"]},{"year":2013,"claim":"Genome-wide ChIP-seq defined the MIZ1 binding consensus and revealed targets in autophagy and vesicular transport; CNS-specific POZ deletion caused defective autophagic flux and cerebellar neurodegeneration, while Ser178 phosphorylation was shown to recruit HDAC1 for inflammatory gene repression.","evidence":"ChIP-seq, conditional Nestin-Cre KO with autophagy flux assays, phospho-site mutagenesis, ChIP for HDAC1","pmids":["24088869","23525087"],"confidence":"High","gaps":["Identity of kinase phosphorylating Ser178 not determined","Whether autophagy regulation is direct or indirect through target genes"]},{"year":2016,"claim":"NMR structure of MIZ1 zinc fingers 3–4 revealed an autoinhibitory compact fold restricting DNA binding, explaining how MIZ1 achieves sequence specificity during promoter scanning; concurrently, the Myc/MIZ1 interaction was shown to distinguish medulloblastoma subgroups and repress circadian clock genes.","evidence":"NMR, A86K mutagenesis, MycV394D mouse tumor models, ChIP, gene expression profiling","pmids":["28035002","26766587","27339797"],"confidence":"High","gaps":["Full-length ZF domain–DNA co-structure not available","Whether autoinhibition is relieved by partner binding"]},{"year":2020,"claim":"MIZ1 was shown to suppress NF-κB in lung epithelium (loss causing COPD-like disease rescued by RelA heterozygosity), to maintain AML stem cells through Myc/MIZ1-mediated Cebpα/δ repression, and to activate Dph1 transcription for diphthamide biosynthesis — expanding MIZ1 functions to innate immunity, leukemia maintenance, and translational fidelity.","evidence":"Conditional KO with RelA compound KO, MycV394D AML model, genome-wide CRISPR screen with ChIP","pmids":["32851183","32040550","33057331"],"confidence":"High","gaps":["Mechanism by which MIZ1 suppresses NF-κB in lung (direct or MTDH-mediated)","Whether Dph1 regulation is conserved across tissues"]},{"year":2021,"claim":"Two additional transcription-independent functions were established: MIZ1 sequesters MTDH to suppress NF-κB in hepatocytes (preventing HCC), and the MYC/MIZ1 complex suppresses TLR3-mediated dsRNA recognition and MHC-I expression to enable PDAC immune evasion.","evidence":"Hepatocyte-specific KO with MTDH co-IP, PDAC mouse model with TBK1 epistasis","pmids":["34038747","34145038"],"confidence":"High","gaps":["Whether MTDH sequestration operates in non-hepatic tissues","Structural basis of MIZ1-MTDH interaction unknown"]},{"year":2023,"claim":"MIZ1 was found to retain PRDX6 in the cytosol, preventing its interaction with mitochondrial Parkin and thereby permitting mitophagy; in NASH, TNFα-induced MIZ1 degradation releases PRDX6 to inhibit mitophagy, creating a pathological feed-forward loop.","evidence":"Co-IP/mass spectrometry, hepatocyte-specific KO, human NASH liver organoids, mitophagy assays","pmids":["37040844"],"confidence":"High","gaps":["Whether PRDX6 sequestration occurs in non-hepatic tissues","How MIZ1-PRDX6 binding is regulated beyond MIZ1 degradation"]},{"year":2024,"claim":"MIZ1 was shown to induce TMBIM4 to control Ca²⁺ homeostasis in IgG1+ GC B cells during positive selection, and to epigenetically repress IFNα/β via HDAC1 recruitment — with viral CUL4B-mediated Mule degradation stabilizing MIZ1 to limit antiviral type I IFN responses.","evidence":"CRISPR screen in GC B cells with conditional genetics and Ca²⁺ assays; ChIP for HDAC1 at Ifn loci, Mule/CUL4B degradation pathway in IAV infection","pmids":["38579014","38593156"],"confidence":"High","gaps":["Whether TMBIM4 induction is POZ-dependent","How CUL4B-Mule-MIZ1 axis is engaged by other viruses"]},{"year":null,"claim":"Key unresolved questions include the full-length structure of MIZ1 bound to DNA, how POZ-domain tetramerization influences promoter selectivity in vivo, the complete catalog of non-transcriptional sequestration targets, and how tissue-specific cofactor availability determines whether MIZ1 activates or represses a given locus.","evidence":"","pmids":[],"confidence":"High","gaps":["No full-length MIZ1–DNA co-crystal structure","Mechanism selecting activation versus repression at individual promoters in different tissues","Whether additional non-transcriptional binding partners remain to be discovered"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0140110","term_label":"transcription regulator activity","supporting_discovery_ids":[0,2,3,5,16,30,36,51]},{"term_id":"GO:0003677","term_label":"DNA binding","supporting_discovery_ids":[0,2,5,36,47]},{"term_id":"GO:0098772","term_label":"molecular function regulator activity","supporting_discovery_ids":[23,52,59]}],"localization":[{"term_id":"GO:0005634","term_label":"nucleus","supporting_discovery_ids":[4,36,39,43]},{"term_id":"GO:0005829","term_label":"cytosol","supporting_discovery_ids":[4,52,59]},{"term_id":"GO:0005856","term_label":"cytoskeleton","supporting_discovery_ids":[4]},{"term_id":"GO:0005929","term_label":"cilium","supporting_discovery_ids":[39]}],"pathway":[{"term_id":"R-HSA-1640170","term_label":"Cell Cycle","supporting_discovery_ids":[2,5,8,11,48]},{"term_id":"R-HSA-74160","term_label":"Gene expression (Transcription)","supporting_discovery_ids":[0,2,3,5,36,51,57]},{"term_id":"R-HSA-5357801","term_label":"Programmed Cell Death","supporting_discovery_ids":[8,14,16,60]},{"term_id":"R-HSA-168256","term_label":"Immune System","supporting_discovery_ids":[30,32,37,49,57,61]},{"term_id":"R-HSA-162582","term_label":"Signal Transduction","supporting_discovery_ids":[3,23,27,33,49,52]},{"term_id":"R-HSA-4839726","term_label":"Chromatin organization","supporting_discovery_ids":[25,26,31,48]},{"term_id":"R-HSA-9612973","term_label":"Autophagy","supporting_discovery_ids":[36,59]},{"term_id":"R-HSA-1266738","term_label":"Developmental Biology","supporting_discovery_ids":[8,30,32,35]}],"complexes":["MYC/MIZ1 repressor complex","BCL6/MIZ1 repressor complex","SP1/MIZ1/MYCN/HDAC1 complex","Gfi-1/MIZ1/MYC complex"],"partners":["MYC","BCL6","HUWE1","GFI1","NPM1","TOPBP1","HDAC1","MTDH"],"other_free_text":[]},"mechanistic_narrative":"ZBTB17 (MIZ1) is a BTB/POZ zinc finger transcription factor that functions as a central transcriptional switch at initiator/core promoter elements, activating cell cycle inhibitors (p15INK4b, p21Cip1, p57Kip2), anti-apoptotic genes (BCL2, TMBIM4), and diverse targets including Dph1, Rpl22, and SOCS1, but converting to a transcriptional repressor when its coactivators (nucleophosmin, p300) are displaced by binding partners such as c-MYC, BCL6, Gfi-1, or MYCN, which recruit HDAC1 to silence target loci [PMID:11283613, PMID:16142238, PMID:19164764, PMID:21123453]. MIZ1 also performs transcription-independent functions: it sequesters MTDH to suppress NF-κB signaling in hepatocytes, retains PRDX6 in the cytosol to permit Parkin-mediated mitophagy, and inhibits TRAF2 K63-linked polyubiquitination to restrain TNF-α-induced JNK1 activation [PMID:34038747, PMID:37040844, PMID:19815509]. Post-translational regulation of MIZ1 includes Akt-mediated phosphorylation enabling 14-3-3η binding to block DNA binding, Ser178 phosphorylation enabling HDAC1 recruitment for inflammatory gene repression, and K48-linked polyubiquitination by Mule/HUWE1 targeting MIZ1 for proteasomal degradation downstream of TNF-α or viral infection [PMID:15580267, PMID:23525087, PMID:20624960, PMID:38593156]. Homozygous Miz1 knockout in mice is embryonic lethal at E7.5 due to ectodermal apoptosis, and tissue-specific loss causes lineage-specific defects including loss of B and T cell progenitors via impaired IL-7R/STAT5 signaling, cerebellar neurodegeneration from defective autophagy, peripheral neuropathy, and COPD-like lung inflammation [PMID:14560010, PMID:21167753, PMID:24088869, PMID:29217679, PMID:32851183]."},"prefetch_data":{"uniprot":{"accession":"Q13105","full_name":"Zinc finger and BTB domain-containing protein 17","aliases":["Myc-interacting zinc finger protein 1","Miz-1","Zinc finger protein 151","Zinc finger protein 60"],"length_aa":803,"mass_kda":87.9,"function":"Transcription factor that can function as an activator or repressor depending on its binding partners, and by targeting negative regulators of cell cycle progression. Plays a critical role in early lymphocyte development, where it is essential to prevent apoptosis in lymphoid precursors, allowing them to survive in response to IL7 and undergo proper lineage commitment. Has been shown to bind to the promoters of adenovirus major late protein and cyclin D1 and activate transcription. Required for early embryonic development during gastrulation. Represses RB1 transcription; this repression can be blocked by interaction with ZBTB49 isoform 3/ZNF509S1 (PubMed:25245946)","subcellular_location":"Nucleus","url":"https://www.uniprot.org/uniprotkb/Q13105/entry"},"depmap":{"release":"DepMap","has_data":true,"is_common_essential":true,"resolved_as":"","url":"https://depmap.org/portal/gene/ZBTB17","classification":"Common Essential","n_dependent_lines":856,"n_total_lines":1208,"dependency_fraction":0.7086092715231788},"opencell":{"profiled":false,"resolved_as":"","ensg_id":"","cell_line_id":"","localizations":[],"interactors":[],"url":"https://opencell.sf.czbiohub.org/search/ZBTB17","total_profiled":1310},"omim":[{"mim_id":"620016","title":"MAX DIMERIZATION PROTEIN 4; MXD4","url":"https://www.omim.org/entry/620016"},{"mim_id":"616590","title":"ZINC FINGER- AND BTB DOMAIN-CONTAINING PROTEIN 5; ZBTB5","url":"https://www.omim.org/entry/616590"},{"mim_id":"616238","title":"ZINC FINGER- AND BTB DOMAIN-CONTAINING PROTEIN 49; ZBTB49","url":"https://www.omim.org/entry/616238"},{"mim_id":"606242","title":"KONDOH SYNDROME","url":"https://www.omim.org/entry/606242"},{"mim_id":"604084","title":"ZINC FINGER- AND BTB DOMAIN-CONTAINING PROTEIN 17; ZBTB17","url":"https://www.omim.org/entry/604084"}],"hpa":{"profiled":true,"resolved_as":"","reliability":"","locations":[],"tissue_specificity":"Low tissue specificity","tissue_distribution":"Detected in all","driving_tissues":[],"url":"https://www.proteinatlas.org/search/ZBTB17"},"hgnc":{"alias_symbol":["MIZ1","pHZ-67"],"prev_symbol":["ZNF151","ZNF60"]},"alphafold":{"accession":"Q13105","domains":[{"cath_id":"3.30.710.10","chopping":"5-114","consensus_level":"medium","plddt":63.6936,"start":5,"end":114}],"viewer_url":"https://alphafold.ebi.ac.uk/entry/Q13105","model_url":"https://alphafold.ebi.ac.uk/files/AF-Q13105-F1-model_v6.cif","pae_url":"https://alphafold.ebi.ac.uk/files/AF-Q13105-F1-predicted_aligned_error_v6.png","plddt_mean":64.12},"mouse_models":{"mgi_url":"https://www.informatics.jax.org/marker/summary?nomen=ZBTB17","jax_strain_url":"https://www.jax.org/strain/search?query=ZBTB17"},"sequence":{"accession":"Q13105","fasta_url":"https://rest.uniprot.org/uniprotkb/Q13105.fasta","uniprot_url":"https://www.uniprot.org/uniprotkb/Q13105/entry","alphafold_viewer_url":"https://alphafold.ebi.ac.uk/entry/Q13105"}},"corpus_meta":[{"pmid":"11283613","id":"PMC_11283613","title":"Repression of p15INK4b expression by Myc through association with Miz-1.","date":"2001","source":"Nature cell biology","url":"https://pubmed.ncbi.nlm.nih.gov/11283613","citation_count":477,"is_preprint":false},{"pmid":"11283614","id":"PMC_11283614","title":"TGFbeta influences Myc, Miz-1 and Smad to control the CDK inhibitor p15INK4b.","date":"2001","source":"Nature cell biology","url":"https://pubmed.ncbi.nlm.nih.gov/11283614","citation_count":410,"is_preprint":false},{"pmid":"16142238","id":"PMC_16142238","title":"BCL6 interacts with the transcription factor Miz-1 to suppress the cyclin-dependent kinase inhibitor p21 and cell cycle arrest in germinal center B cells.","date":"2005","source":"Nature immunology","url":"https://pubmed.ncbi.nlm.nih.gov/16142238","citation_count":280,"is_preprint":false},{"pmid":"12408820","id":"PMC_12408820","title":"Negative regulation of the mammalian UV response by Myc through association with Miz-1.","date":"2002","source":"Molecular cell","url":"https://pubmed.ncbi.nlm.nih.gov/12408820","citation_count":263,"is_preprint":false},{"pmid":"19549844","id":"PMC_19549844","title":"BCL6 suppression of BCL2 via Miz1 and its disruption in diffuse large B cell lymphoma.","date":"2009","source":"Proceedings of the National Academy of Sciences of the United States of America","url":"https://pubmed.ncbi.nlm.nih.gov/19549844","citation_count":155,"is_preprint":false},{"pmid":"23699408","id":"PMC_23699408","title":"Mule/Huwe1/Arf-BP1 suppresses Ras-driven tumorigenesis by preventing c-Myc/Miz1-mediated down-regulation of p21 and p15.","date":"2013","source":"Genes & development","url":"https://pubmed.ncbi.nlm.nih.gov/23699408","citation_count":110,"is_preprint":false},{"pmid":"16391002","id":"PMC_16391002","title":"Myc regulates keratinocyte adhesion and differentiation via complex formation with Miz1.","date":"2006","source":"The Journal of cell biology","url":"https://pubmed.ncbi.nlm.nih.gov/16391002","citation_count":103,"is_preprint":false},{"pmid":"20551174","id":"PMC_20551174","title":"The interaction between Myc and Miz1 is required to antagonize TGFbeta-dependent autocrine signaling during lymphoma formation and maintenance.","date":"2010","source":"Genes & development","url":"https://pubmed.ncbi.nlm.nih.gov/20551174","citation_count":99,"is_preprint":false},{"pmid":"27339797","id":"PMC_27339797","title":"MYC/MIZ1-dependent gene repression inversely coordinates the circadian clock with cell cycle and proliferation.","date":"2016","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/27339797","citation_count":97,"is_preprint":false},{"pmid":"24296348","id":"PMC_24296348","title":"The role of MIZ-1 in MYC-dependent tumorigenesis.","date":"2013","source":"Cold Spring Harbor perspectives in medicine","url":"https://pubmed.ncbi.nlm.nih.gov/24296348","citation_count":88,"is_preprint":false},{"pmid":"9256341","id":"PMC_9256341","title":"Miz1, a novel zinc finger transcription factor that interacts with Msx2 and enhances its affinity for DNA.","date":"1997","source":"Mechanisms of development","url":"https://pubmed.ncbi.nlm.nih.gov/9256341","citation_count":87,"is_preprint":false},{"pmid":"30012618","id":"PMC_30012618","title":"MIZ1 regulates ECA1 to generate a slow, long-distance phloem-transmitted Ca2+ signal essential for root water tracking in Arabidopsis.","date":"2018","source":"Proceedings of the National Academy of Sciences of the United States of America","url":"https://pubmed.ncbi.nlm.nih.gov/30012618","citation_count":87,"is_preprint":false},{"pmid":"21123453","id":"PMC_21123453","title":"A SP1/MIZ1/MYCN repression complex recruits HDAC1 at the TRKA and p75NTR promoters and affects neuroblastoma malignancy by inhibiting the cell response to NGF.","date":"2010","source":"Cancer research","url":"https://pubmed.ncbi.nlm.nih.gov/21123453","citation_count":84,"is_preprint":false},{"pmid":"11545736","id":"PMC_11545736","title":"Transcription factor MIZ-1 is regulated via microtubule association.","date":"2001","source":"Molecular cell","url":"https://pubmed.ncbi.nlm.nih.gov/11545736","citation_count":78,"is_preprint":false},{"pmid":"15580267","id":"PMC_15580267","title":"Akt and 14-3-3eta regulate Miz1 to control cell-cycle arrest after DNA damage.","date":"2004","source":"Nature cell biology","url":"https://pubmed.ncbi.nlm.nih.gov/15580267","citation_count":76,"is_preprint":false},{"pmid":"21167753","id":"PMC_21167753","title":"Transcription factor miz-1 is required to regulate interleukin-7 receptor signaling at early commitment stages of B cell 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development\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — reciprocal binding confirmed in vitro + functional reporter assay, single lab\",\n      \"pmids\": [\"9256341\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 1997,\n      \"finding\": \"Miz-1 associates with the carboxy-terminus of Myc and this interaction defines a pathway for transcriptional repression by Myc that is distinct from the Myc/Max complex.\",\n      \"method\": \"Yeast two-hybrid cloning, co-immunoprecipitation\",\n      \"journal\": \"Current topics in microbiology and immunology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 3 — original identification by yeast two-hybrid, foundational but early-stage\",\n      \"pmids\": [\"9308237\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2001,\n      \"finding\": \"Miz-1 binds to the initiator element of the p15INK4b promoter and activates its transcription; Myc and Max form a complex with Miz-1 at this site to repress p15INK4b expression, thereby inhibiting G1 arrest. Myc alleles unable to bind Miz-1 fail to suppress p15INK4b accumulation and are deficient in cell immortalization.\",\n      \"method\": \"Chromatin immunoprecipitation, reporter assays, Myc point mutants, primary MEF cell-cycle analysis\",\n      \"journal\": \"Nature cell biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — multiple orthogonal methods including ChIP, mutagenesis, and primary cell phenotypes; replicated in companion paper\",\n      \"pmids\": [\"11283613\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2001,\n      \"finding\": \"TGFβ signaling prevents recruitment of Myc to the p15INK4b initiator by Miz-1, relieving repression and allowing a Smad protein complex to contact Miz-1 and transactivate p15INK4b. Thus Miz-1 is a platform that integrates Myc-mediated repression and Smad-mediated activation at the p15INK4b promoter.\",\n      \"method\": \"Chromatin immunoprecipitation, reporter assays, dominant-negative Smad experiments, gel shift assays\",\n      \"journal\": \"Nature cell biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — ChIP, reporter assays, epistasis with Smad pathway; replicated across two labs in companion papers\",\n      \"pmids\": [\"11283614\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2001,\n      \"finding\": \"Miz-1 is regulated by association with microtubules; it is largely cytoplasmic but accumulates in the nucleus upon microtubule depolymerization. Miz-1 binds directly to the LDLR promoter and activates its transcription.\",\n      \"method\": \"Indirect immunofluorescence, soft X-ray microscopy, GFP time-lapse imaging, chromatin/promoter binding assays\",\n      \"journal\": \"Molecular cell\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — direct subcellular localization by multiple imaging methods with functional consequence on transcription\",\n      \"pmids\": [\"11545736\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2002,\n      \"finding\": \"Miz-1 binds to the p21Cip1 core promoter in vivo and is required for upregulation of p21Cip1 upon UV irradiation. Topoisomerase II binding protein (TopBP1) negatively regulates Miz-1 transactivation; UV downregulates TopBP1, releasing Miz-1 to activate p21Cip1. Myc binds Miz-1 at the p21Cip1 promoter to negatively regulate p21Cip1 expression after UV irradiation.\",\n      \"method\": \"ChIP, c-myc-/- cells, Myc Miz-1-binding point mutant (MycV394D), reporter assays, gene expression analysis\",\n      \"journal\": \"Molecular cell\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — ChIP, genetic knockout, mutagenesis, multiple orthogonal methods in single study\",\n      \"pmids\": [\"12408820\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2002,\n      \"finding\": \"Miz-1 activates the Nramp1 promoter through initiator elements; c-Myc competes with p300/CBP for binding to Miz-1 to repress Nramp1 transcription.\",\n      \"method\": \"Reporter assays, co-transfection, promoter deletion analysis, RNAi\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — multiple promoter assays and competition binding experiments, single lab\",\n      \"pmids\": [\"12110671\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2002,\n      \"finding\": \"Host cell factor-1 (HCF-1) directly binds to Miz-1, targeting its transactivation domain; HCF-1 represses Miz-1-mediated p15INK4b promoter activation by interfering with recruitment of the coactivator p300 to Miz-1.\",\n      \"method\": \"Co-immunoprecipitation, GST pulldown, reporter assays, protein-protein interaction domain mapping\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — reciprocal co-IP and reporter assays, single lab\",\n      \"pmids\": [\"12244100\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2003,\n      \"finding\": \"Miz1 homologous knockout in mice causes lethality at E7.5 due to massive apoptosis of ectodermal cells and failure to undergo normal gastrulation; p57Kip2 (a Miz1 target gene) is absent in Miz1-/- embryos, while p21Cip1 expression is unaltered, indicating gene-specific transcriptional requirements.\",\n      \"method\": \"Homologous recombination/gene targeting, in situ hybridization, immunostaining\",\n      \"journal\": \"Molecular and cellular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — clean KO with defined developmental phenotype and target gene analysis\",\n      \"pmids\": [\"14560010\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2003,\n      \"finding\": \"IRF-8 interacts with Miz-1 in immune cells; together with PU.1, this complex binds the Nramp1 promoter and mediates its macrophage-specific expression.\",\n      \"method\": \"Yeast two-hybrid, co-immunoprecipitation, ChIP\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — yeast two-hybrid confirmed by co-IP and ChIP, single lab\",\n      \"pmids\": [\"12904288\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2003,\n      \"finding\": \"Miz-1 and c-Myc form a repressor complex at the Mad4 initiator element to suppress Mad4 expression in proliferating cells; loss of this complex during differentiation allows Mad4 activation.\",\n      \"method\": \"Reporter assays, EMSA/gel shift, cell differentiation model\",\n      \"journal\": \"The Biochemical journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — reporter + binding assays, single lab\",\n      \"pmids\": [\"12418961\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2004,\n      \"finding\": \"Akt phosphorylates Miz1, enabling 14-3-3η to bind Miz1's DNA-binding domain and inhibit its transcriptional activating function; this regulates recovery from DNA-damage-induced cell-cycle arrest. Miz1 has two distinct functions in DNA damage: c-Myc-regulated gene upregulation, and 14-3-3η/Akt-regulated gene repression.\",\n      \"method\": \"Co-immunoprecipitation, kinase assays, domain mapping, cell-cycle analysis\",\n      \"journal\": \"Nature cell biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — kinase assay, co-IP, domain mutants, and functional phenotype; single lab but multiple methods\",\n      \"pmids\": [\"15580267\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2004,\n      \"finding\": \"MAGE-A4 C-terminal fragment (cleaved by caspase-induced processing) binds Miz-1 and is recruited to the p21Cip1 promoter via Miz-1, downregulating p21Cip1 transcription and inducing apoptosis.\",\n      \"method\": \"Yeast two-hybrid, co-immunoprecipitation, ChIP, reporter assays\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — yeast two-hybrid confirmed by co-IP and ChIP, single lab\",\n      \"pmids\": [\"14739298\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2005,\n      \"finding\": \"BCL6 interacts with Miz-1 and, via Miz-1, binds the CDKN1A (p21) promoter to suppress transcription and prevent p53-independent cell cycle arrest in germinal center B cells.\",\n      \"method\": \"Co-immunoprecipitation, ChIP, reporter assays, germinal center B cell functional analysis\",\n      \"journal\": \"Nature immunology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — reciprocal co-IP, ChIP, and functional B cell phenotype; replicated in subsequent studies\",\n      \"pmids\": [\"16142238\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2005,\n      \"finding\": \"Miz-1 inactivation by c-Myc is required for apoptosis induction by Myc in primary diploid human fibroblasts under growth factor withdrawal, but Miz-1 inactivation is dispensable for Myc-induced cell cycle progression and transformation.\",\n      \"method\": \"shRNA knockdown, MycV394D mutant defective in Miz-1 binding, apoptosis and cell-cycle assays\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — genetic epistasis with Myc mutant and RNAi, clean phenotypic separation, single lab\",\n      \"pmids\": [\"16352593\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2005,\n      \"finding\": \"Pontin (Tip49) and Reptin (Tip48) interact with c-Myc and function as co-repressors in the c-Myc/Miz-1 pathway to repress p21 expression and control cell proliferation in Xenopus embryos.\",\n      \"method\": \"Xenopus embryo overexpression/knockdown, rescue with c-Myc RNA and dominant-negative Miz-1, reporter assays\",\n      \"journal\": \"Mechanisms of development\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — genetic epistasis in Xenopus model with reporter assays, single lab\",\n      \"pmids\": [\"15804567\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2006,\n      \"finding\": \"MIZ-1 activates BCL2 transcription; c-MYC binding and inactivation of MIZ-1 represses BCL2, and this repression is the essential consequence of MIZ-1 targeting during Myc-induced apoptosis.\",\n      \"method\": \"shRNA knockdown of Miz-1, Myc mutant defective in Miz-1 binding, BCL2 inhibitor rescue, reporter assays\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — multiple genetic approaches (shRNA, mutant Myc, small molecule inhibitor rescue), single lab\",\n      \"pmids\": [\"17082179\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2006,\n      \"finding\": \"Myc-Miz1 complex regulates keratinocyte adhesion and TGFβ responsiveness; Miz1 is required for Myc to decrease keratinocyte adhesion and spreading. Target genes include α6 and β1 integrins, directly bound by both Myc and Miz1 in vivo. Miz1-dependent regulation is required for Myc-induced premature differentiation in reconstituted epidermis.\",\n      \"method\": \"MycV394D mutant, ChIP, reconstituted epidermis, keratinocyte adhesion assays, integrin overexpression rescue\",\n      \"journal\": \"The Journal of cell biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — ChIP, mutagenesis, and functional rescue experiments, single lab\",\n      \"pmids\": [\"16391002\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2007,\n      \"finding\": \"Crystal structure of the Miz-1 POZ domain at 2.1 Å resolution reveals a tetrameric organization with two types of subunit interfaces: an α-helical dimerization interface and a novel β-sheet interface that directs tetramerization of two POZ domain dimers in solution.\",\n      \"method\": \"X-ray crystallography, solution studies confirming β-sheet interface mediates tetramerization\",\n      \"journal\": \"Journal of molecular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 — crystal structure with solution validation of tetramerization interface\",\n      \"pmids\": [\"17880999\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2008,\n      \"finding\": \"Miz1 is required for recruitment of TopBP1 to chromatin and for protection of TopBP1 from proteasomal degradation by the HectH9 ubiquitin ligase; Myc antagonizes TopBP1 binding to Miz1, causing TopBP1 dissociation from chromatin and attenuation of ATR-dependent checkpoint signaling.\",\n      \"method\": \"Co-immunoprecipitation, chromatin fractionation, proteasome inhibition, Myc overexpression\",\n      \"journal\": \"The EMBO journal\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — mechanistic pathway with biochemical fractionation, co-IP, and functional checkpoint readout\",\n      \"pmids\": [\"18923429\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2008,\n      \"finding\": \"Myc promotes neural progenitor cell self-renewal through Miz-1; a Myc mutant (MycV394D) deficient in Miz-1 binding does not increase self-renewing cells though it still stimulates proliferation, demonstrating the Miz-1 interaction specifically mediates the self-renewal effect.\",\n      \"method\": \"Retroviral transduction, MycV394D mutant, neurosphere self-renewal assays\",\n      \"journal\": \"Journal of cell science\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — genetic separation of function using Myc point mutant, single lab\",\n      \"pmids\": [\"19001505\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"BCL6 interacts with Miz-1 to bind the BCL2 promoter and suppresses Miz1-induced BCL2 expression in germinal center B cells; this BCL6-Miz1-mediated BCL2 suppression is lost in follicular lymphoma and DLBCL.\",\n      \"method\": \"Co-immunoprecipitation, ChIP, reporter assays, B cell functional studies\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — reciprocal co-IP, ChIP, and reporter assays confirming direct pathway\",\n      \"pmids\": [\"19549844\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"Gfi-1 represses CDKN2B (p15INK4B) by interacting with Miz-1 and being recruited to the CDKN2B core promoter via Miz-1, not via direct DNA binding. Gfi-1 and c-Myc collaborate through Miz-1 on the CDKN2B promoter.\",\n      \"method\": \"Co-immunoprecipitation, ChIP, reporter assays, Gfi-1 knockdown\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — reciprocal co-IP, ChIP, and knockdown with gene expression readout\",\n      \"pmids\": [\"19164764\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"Miz1 selectively suppresses TNF-α-induced JNK1 activation (but not IL-1β- or UV-induced JNK activation) independently of its transcriptional activity; Miz1 inhibits TRAF2 K63-linked polyubiquitination. Upon TNF-α stimulation, Miz1 undergoes proteasomal degradation to relieve JNK1 suppression.\",\n      \"method\": \"Miz1-/- MEFs, reconstitution with transcription-deficient Miz1 mutant, JNK activity assays, TRAF2 ubiquitination assays\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — genetic KO with defined pathway, transcription-independent mechanism confirmed by mutant, multiple signaling assays\",\n      \"pmids\": [\"19815509\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"ARF interacts with Miz-1 (via Miz-1's zinc finger domain) and counteracts Miz-1-mediated inhibition of p53 transcriptional activity. Miz-1 binds p53 through its DNA-binding domain and reduces p53 promoter occupancy; ARF and p53 competitively bind Miz-1.\",\n      \"method\": \"Yeast two-hybrid, in vitro binding assay, competitive ChIP, reporter assays\",\n      \"journal\": \"Oncogene\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — yeast two-hybrid confirmed by in vitro binding and competitive ChIP, single lab\",\n      \"pmids\": [\"19901969\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"The Myc-Miz1 interaction is continuously required in established T-cell lymphomas to repress CKI expression and prevent accumulation of trimethylated H3K9, a senescence marker. TGFβ autocrine signaling induces CKI expression and senescence when Myc is suppressed; Myc/Miz1 interaction antagonizes this TGFβ-induced senescence program.\",\n      \"method\": \"MycV394D mutant lymphoma model, Myc suppression, ChIP for H3K9me3, TGFβ pathway analysis\",\n      \"journal\": \"Genes & development\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — genetic epistasis with Myc mutant in tumor model, ChIP, and pathway analysis; single lab\",\n      \"pmids\": [\"20551174\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"Arf interacts with Miz1, disrupts Miz1-nucleophosmin co-activator interaction, induces sumoylation of Miz1, and promotes assembly of a heterochromatic complex containing Myc and H3K9me3 at Miz1 target loci, leading to repression of cell adhesion genes and induction of apoptosis.\",\n      \"method\": \"Co-immunoprecipitation, sumoylation assay, ChIP for H3K9me3, gene expression analysis, apoptosis assays\",\n      \"journal\": \"The Journal of cell biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — multiple biochemical assays with defined cellular outcome, single lab\",\n      \"pmids\": [\"20308430\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"Mule (HectH9) is the E3 ubiquitin ligase that catalyzes K48-linked polyubiquitination of Miz1 upon TNF-α stimulation, targeting Miz1 for proteasomal degradation and thereby relieving Miz1-mediated suppression of JNK activation.\",\n      \"method\": \"Co-immunoprecipitation, in vitro ubiquitination assays, Mule siRNA, Miz1 degradation assays\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — in vitro ubiquitination assay with defined E3, confirmed by siRNA, single lab\",\n      \"pmids\": [\"20624960\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"Gfi-1 interacts with Miz-1 and forms a ternary complex with c-Myc on the CDKN1A core promoter to repress p21Cip1 expression, independent of Gfi-1's direct DNA binding activity.\",\n      \"method\": \"Co-immunoprecipitation, ChIP, reporter assays, Gfi-1 knockdown\",\n      \"journal\": \"Oncogene\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — co-IP and ChIP confirming ternary complex, single lab\",\n      \"pmids\": [\"20190815\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"The Miz-1 BTB/POZ domain crystal structure was solved at 2.6 Å, revealing a strand-swapped dimer with a shorter N-terminus unable to form the interchain sheet characteristic of classical BTB dimers.\",\n      \"method\": \"X-ray crystallography, cysteine cross-linking in solution\",\n      \"journal\": \"Journal of molecular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 — crystal structure with solution validation\",\n      \"pmids\": [\"20493880\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"Miz1 (Zbtb17) lacking its POZ domain causes nearly complete absence of follicular B cells due to failure to activate the JAK-STAT5 pathway upon IL-7 stimulation. Miz-1 directly represses SOCS1 and activates Bcl2; combined re-expression of Bcl2 and Ebf1 rescues B cell development.\",\n      \"method\": \"Conditional knockout (Zbtb17ΔPOZ/ΔPOZ), Jak-Stat5 signaling assays, ChIP, genetic rescue experiments\",\n      \"journal\": \"Immunity\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — clean KO with defined signaling phenotype, ChIP, and epistatic rescue\",\n      \"pmids\": [\"21167753\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"A SP1/MIZ1/MYCN repression complex recruits HDAC1 to the TRKA and p75NTR promoters to repress their transcription in neuroblastoma cells.\",\n      \"method\": \"ChIP, co-immunoprecipitation, reporter assays, HDAC inhibitor TSA\",\n      \"journal\": \"Cancer research\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — ChIP and co-IP with defined complex composition and epigenetic mechanism\",\n      \"pmids\": [\"21123453\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2011,\n      \"finding\": \"Miz-1 (Zbtb17ΔPOZ) is required for IL-7R-dependent survival and differentiation of early T-lineage progenitors; Miz-1 binds the SOCS1 promoter to repress it, enabling STAT5 activation and Bcl2 upregulation. Overexpression of Bcl-2 or SOCS1 inhibition restores pro-T cell numbers.\",\n      \"method\": \"Conditional knockout, ChIP, STAT5 phosphorylation assays, genetic rescue with Bcl2 transgene and SOCS1 siRNA\",\n      \"journal\": \"Blood\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — clean KO, ChIP, and genetic rescue demonstrating pathway\",\n      \"pmids\": [\"21258009\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2011,\n      \"finding\": \"Site-specific K48-linked polyubiquitination of Miz1 at Lys388 and Lys472 (promoted by TRAF2 upon TNF-α stimulation) is required for Miz1 degradation and de-repression of JNK activation; a non-degradable Miz1 mutant (K388R/K472R) significantly suppresses TNF-α-induced JNK1 activation.\",\n      \"method\": \"Mutagenesis of ubiquitination sites, in vivo ubiquitination assays, JNK activity assays\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — mutagenesis of specific ubiquitination sites with functional readout, mechanistically precise\",\n      \"pmids\": [\"22184250\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2011,\n      \"finding\": \"Myc and Miz-1 co-occupy Hox gene promoters in human ES cells and together suppress differentiation-promoting genes to maintain pluripotency; Myc and Miz-1 proteins interact and associate with corepressor factors in ES cells.\",\n      \"method\": \"ChIP-chip, Myc/Miz-1 knockdown, co-immunoprecipitation\",\n      \"journal\": \"Epigenetics & chromatin\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — ChIP-chip and co-IP, single lab\",\n      \"pmids\": [\"22053792\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2011,\n      \"finding\": \"Miz-1 is required at the pre-TCR β-selection checkpoint; Miz-1-deficient DN3 cells fail to express pre-TCR at the surface and show elevated expression of p53 target genes. Only combined re-expression of rearranged TCRαβ and Bcl2 rescues the block.\",\n      \"method\": \"Conditional knockout, gene expression analysis, genetic rescue\",\n      \"journal\": \"Journal of immunology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — clean KO with defined checkpoint block and epistatic genetic rescue\",\n      \"pmids\": [\"21841135\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2013,\n      \"finding\": \"Miz-1 activates transcription upon binding a non-palindromic sequence in core promoters; Miz1 target genes include regulators of autophagy and vesicular transport. Deletion of Miz1 POZ domain in CNS causes defective autophagic flux and cerebellar neurodegeneration.\",\n      \"method\": \"ChIP-Seq, biochemical analysis, Nestin-Cre conditional knockout, autophagy flux assays (p62/ubiquitin accumulation)\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — ChIP-seq genome-wide analysis, conditional KO with defined cellular phenotype\",\n      \"pmids\": [\"24088869\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2013,\n      \"finding\": \"Miz1 suppresses LPS-induced inflammation by being phosphorylated at Ser178 after stimulation, enabling recruitment of HDAC1 to the C/EBP-δ gene promoter to repress its transcription and terminate the inflammatory response.\",\n      \"method\": \"Conditional POZ-domain knockout mouse, phosphorylation site mutagenesis, ChIP for HDAC1, inflammatory cytokine assays\",\n      \"journal\": \"Nature immunology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — mutagenesis of phosphorylation site, ChIP, and in vivo phenotype; single lab\",\n      \"pmids\": [\"23525087\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2013,\n      \"finding\": \"In vivo, Mule/Huwe1 suppresses Ras-driven tumorigenesis by preventing accumulation of c-Myc/Miz1 transcriptional complexes that repress p21 and p15; Mule-deficient keratinocyte tumorigenesis could be reversed by concomitant c-Myc knockout or Miz1 knockdown.\",\n      \"method\": \"Conditional knockout mouse (K14Cre;Mule flox/flox), Miz1 knockdown, genetic epistasis with c-Myc KO\",\n      \"journal\": \"Genes & development\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — in vivo genetic epistasis with multiple KO combinations and defined phenotype\",\n      \"pmids\": [\"23699408\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2013,\n      \"finding\": \"Miz1 regulates Hedgehog signaling by binding Smo and Gli2; Miz1 overexpression increases Gli reporter activity, and Smo activation induces Miz1 translocation to primary cilia with Smo and Gli2. Miz1 translocates to the nucleus in a Smo-dependent manner and is required for Gli2 nuclear translocation.\",\n      \"method\": \"Co-immunoprecipitation, Gli reporter assays, confocal imaging of primary cilia, Miz1 knockdown, allograft tumor model\",\n      \"journal\": \"PloS one\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — co-IP, imaging, and reporter assays; single lab\",\n      \"pmids\": [\"23671675\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"Miz-1 directly activates the ribosomal protein L22 (Rpl22) gene; Rpl22 protein binds p53 mRNA and negatively regulates its translation, thereby limiting p53-dependent apoptosis in pro-B and DN3a pre-T cells undergoing V(D)J recombination.\",\n      \"method\": \"ChIP, gene expression analysis, conditional KO, Rpl22 rescue experiments, translational assays\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — ChIP, KO, and mechanistic translational regulation assay\",\n      \"pmids\": [\"25468973\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"Crystal structures of heterodimeric POZ domains of Miz1/BCL6 and Miz1/NAC1 were solved, revealing the structural basis for POZ domain heteromeric interactions relevant to B-cell lymphoma and ovarian carcinoma.\",\n      \"method\": \"X-ray crystallography of forced heterodimers, tethered POZ domain purification strategy\",\n      \"journal\": \"Acta crystallographica Section F\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 — crystal structures of two heterodimeric POZ domain complexes\",\n      \"pmids\": [\"25484205\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"Nac1 interacts with Miz1 through a heterodimeric POZ domain interaction, relocalizes Miz1 to nuclear bodies, and suppresses p21Cip1 expression; Nac1 knockdown increases Miz1 target gene p21Cip1 in ovarian cancer cells.\",\n      \"method\": \"Chemical crosslinking, co-immunoprecipitation, confocal imaging, siRNA knockdown with p21 expression analysis\",\n      \"journal\": \"Bioscience reports\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — crosslinking + co-IP + functional readout, single lab\",\n      \"pmids\": [\"24702277\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"EBNA3A interacts with Miz-1 in EBV-infected cells, causes a fraction of Miz-1 to translocate from cytoplasm to nucleus, forms a trimeric complex with Miz-1 on its recognition DNA element, prevents Miz-1-nucleophosmin interaction, and represses CDKN2B transcription with H3K27 repressive marks.\",\n      \"method\": \"Co-immunoprecipitation at endogenous levels, EMSA, ChIP for H3K27me3, gene expression analysis\",\n      \"journal\": \"Nucleic acids research\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — endogenous co-IP, EMSA, ChIP, single lab\",\n      \"pmids\": [\"25092922\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"ZBTB17 (Miz1) interacts with cysteine and glycine-rich protein 3 (CSRP3/MLP) by yeast 2-hybrid; cardiac myocyte-specific Zbtb17 deletion in mice causes cardiomyopathy and fibrosis after biomechanical stress. ZBTB17 protects cardiomyocytes from apoptosis and regulates hypertrophy in a calcineurin-dependent manner.\",\n      \"method\": \"Yeast two-hybrid, conditional cardiac-specific knockout, biomechanical stress model, apoptosis and hypertrophy assays\",\n      \"journal\": \"Circulation. Cardiovascular genetics\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — conditional KO with defined cardiac phenotype; calcineurin dependence shown in vitro and in vivo\",\n      \"pmids\": [\"26175529\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"MYC/MIZ1 complex represses core circadian clock genes BMAL1 (ARNTL), CLOCK, and NPAS2, thereby attenuating the circadian clock and promoting cell proliferation; this requires formation of repressive MYC-MIZ1 complexes.\",\n      \"method\": \"MYC overexpression/knockdown, MycV394D mutant, reporter assays, gene expression in lymphoma samples\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — genetic separation of function using Myc mutant, multiple gene targets, clinical correlation\",\n      \"pmids\": [\"27339797\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"Myc/Miz1 interaction distinguishes medulloblastoma subgroup identity; Myc binds Miz1 strongly (unlike MycN) and suppresses ciliogenesis and reprograms GNP transcriptome through Miz1-dependent repression. Genetic disruption of Myc/Miz1 interaction inhibited Group 3 medulloblastoma development.\",\n      \"method\": \"MycV394D mutant mouse models, ChIP, gene expression profiling, tumor development assays\",\n      \"journal\": \"Cancer cell\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — in vivo genetic epistasis with defined tumor phenotype and ChIP\",\n      \"pmids\": [\"26766587\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"NMR structural analysis revealed that Miz-1 zinc fingers 3 and 4 form an unusual compact structure that restricts DNA binding of the first four ZF modules; an A86K mutation disrupts this compact structure and increases DNA-binding affinity 30-fold, suggesting ZFs 3–4 function to prevent nonspecific DNA binding during sequence scanning.\",\n      \"method\": \"NMR (2D 1H-1H), mutagenesis (A86K), DNA binding affinity measurements\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 — NMR structure with functional mutagenesis validation\",\n      \"pmids\": [\"28035002\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"Miz1 controls Schwann cell proliferation by directly repressing the H3K36me2 demethylase Kdm8; loss of Miz1 POZ domain releases Kdm8 repression, causing decreased H3K36me2 at cell-cycle genes and re-entry of adult Schwann cells into the cell cycle, leading to peripheral neuropathy.\",\n      \"method\": \"Conditional POZ-domain knockout in Schwann cells, RNA-seq, ChIP, Kdm8 expression analysis\",\n      \"journal\": \"The Journal of neuroscience\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — conditional KO, RNA-seq, ChIP, defined epigenetic mechanism\",\n      \"pmids\": [\"29217679\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"Miz1 acts as a negative regulator of NF-κB signaling in lung epithelial cells; loss of Miz1 causes sustained NF-κB activation and a COPD-like phenotype. Concomitant partial loss of NF-κB/RelA prevents COPD-like phenotype in Miz1-deficient mice. Miz1 also represses ACE2 expression in lung epithelium.\",\n      \"method\": \"Lung epithelial conditional knockout, NF-κB/RelA compound knockout, gene expression analysis\",\n      \"journal\": \"Science advances\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — conditional KO with double-mutant epistasis defining NF-κB pathway, in vivo phenotype\",\n      \"pmids\": [\"32851183\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"Myc-Miz1-mediated transcriptional repression of Cebpα and Cebpδ is required for maintaining undifferentiated state and self-renewal capacity of leukemia stem cells in AML; MycV394D (Miz1-binding deficient) AML cells are partially differentiated with reduced LSC frequency.\",\n      \"method\": \"MycV394D mutant, MLL-AF9 AML mouse model, colony-forming assay, serial transplantation, gene expression\",\n      \"journal\": \"Blood\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — in vivo leukemia model with Myc mutant, genetic epistasis, mechanistic target identification\",\n      \"pmids\": [\"32040550\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"Miz1 was identified as an essential regulator of diphthamide biosynthesis via genome-wide CRISPR screen; Miz1 binds directly to the Dph1 proximal promoter via an evolutionarily conserved consensus site to activate Dph1 transcription.\",\n      \"method\": \"Genome-wide CRISPR KO screen, ChIP, reporter assays, promoter binding analysis\",\n      \"journal\": \"PLoS genetics\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — saturating genome-wide screen with mechanistic follow-up by ChIP and mutagenesis\",\n      \"pmids\": [\"33057331\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"Miz1 sequestrates oncoprotein metadherin (MTDH) in hepatocytes independently of its transcriptional activity, preventing MTDH from promoting NF-κB activation; hepatocyte-specific Miz1 deletion promotes pro-inflammatory cytokine production, macrophage polarization toward pro-inflammatory phenotypes, and HCC.\",\n      \"method\": \"Hepatocyte-specific Miz1 knockout, co-immunoprecipitation with MTDH, NF-κB activation assays\",\n      \"journal\": \"Immunity\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — conditional KO, co-IP defining non-transcriptional mechanism, defined cellular phenotype\",\n      \"pmids\": [\"34038747\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"MYC suppresses loading of nuclear-derived dsRNA onto TLR3 and its subsequent lysosomal degradation via association with MIZ1; MYC/MIZ1 complex suppresses TBK1 activation and downstream MHC class I expression in PDAC, enabling immune evasion.\",\n      \"method\": \"MYC deletion in PDAC mouse model, TBK1 KO rescue, dsRNA vesicular trafficking analysis, MIZ1 co-association\",\n      \"journal\": \"Cancer research\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — genetic KO in mouse model, mechanistic pathway defined with multiple genetic epistasis\",\n      \"pmids\": [\"34145038\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"Miz1 directly binds to and represses the ACE2 promoter in mouse and human lung epithelial cells.\",\n      \"method\": \"ChIP, reporter assays in lung epithelial cells\",\n      \"journal\": \"Frontiers in immunology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — direct ChIP evidence plus reporter assay, single lab\",\n      \"pmids\": [\"34305888\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"MXD proteins activate transcription of Miz1 target genes p15 and p21 by interacting with MIZ1; MXD mutants deficient in MIZ1 binding cannot activate MYC-repressed genes even while retaining MAX interaction.\",\n      \"method\": \"Reporter assays, MXD/MIZ1 binding mutants, DNA binding assays\",\n      \"journal\": \"FEBS letters\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — separation-of-function mutants with reporter assays, single lab\",\n      \"pmids\": [\"33914337\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"Miz1 promotes KRAS-driven lung tumorigenesis by directly binding the Pcdh10 promoter to repress its expression; silencing Pcdh10 rescues the anti-proliferative and anti-tumorigenic effects of Miz1 loss in mutant KRAS tumor cells.\",\n      \"method\": \"Conditional KO in KRAS mouse model, ChIP, RNA-seq, Pcdh10 rescue experiments\",\n      \"journal\": \"Cancer letters\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — ChIP, genetic epistasis with Pcdh10 rescue both in vitro and in vivo, single lab\",\n      \"pmids\": [\"36538983\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"Miz1 directly represses IL-12 in lung epithelial cells and dendritic cells by binding the Il12 promoter and recruiting HDAC1, thereby preventing Th1 skewing and promoting allergic asthma pathogenesis.\",\n      \"method\": \"Cell-specific conditional KO, ChIP-seq, ChIP-qPCR, HDAC1 recruitment assays, cytokine measurement\",\n      \"journal\": \"American journal of respiratory cell and molecular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — ChIP-seq, conditional KO in specific cell types, epigenetic mechanism defined\",\n      \"pmids\": [\"35833903\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"ZBTB17 interacts with nuclear receptor RXRA; ZBTB17 knockdown activates RXRA-dependent ITPR2-mediated intracellular calcium signaling, causing mitochondrial dysfunction, ROS accumulation, DNA damage, and cellular senescence.\",\n      \"method\": \"Co-immunoprecipitation, ZBTB17 knockdown, calcium imaging, ITPR2 knockdown epistasis\",\n      \"journal\": \"FASEB journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — co-IP and functional pathway with genetic epistasis, single lab\",\n      \"pmids\": [\"37698375\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"Miz1 binds peroxiredoxin 6 (PRDX6) in hepatocyte cytosol, retaining it there and blocking its interaction with mitochondrial Parkin at Cys431, thereby enabling Parkin-mediated mitophagy. In NASH, TNFα-induced E3-ubiquitination of Miz1 causes its degradation, releasing PRDX6 to inhibit mitophagy and propagate a TNFα/Miz1 positive feedback loop.\",\n      \"method\": \"Co-immunoprecipitation, mass spectrometry, hepatocyte-specific Miz1 KO, human NASH liver organoids, mitophagy assays\",\n      \"journal\": \"Journal of hepatology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — co-IP/MS identifying binding partner, conditional KO, organoid validation, mechanistic loop defined\",\n      \"pmids\": [\"37040844\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"MIZ1 induces TMBIM4 (an anti-apoptotic protein that regulates IP3R-mediated Ca2+ mobilization downstream of BCR signaling) specifically in IgG1+ GC B cells; MIZ1-TMBIM4 axis prevents excessive Ca2+ accumulation and mitochondrial dysfunction specifically in IgG1+ B cells during positive selection.\",\n      \"method\": \"CRISPR-Cas9 screen in GC B cells, conditional mouse genetics, Ca2+ mobilization assays, mitochondrial function assays\",\n      \"journal\": \"Science immunology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — genome-wide CRISPR screen plus conditional genetics, mechanistic Ca2+ pathway defined\",\n      \"pmids\": [\"38579014\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"Miz1 epigenetically represses Ifna and Ifnb gene promoters by recruiting HDAC1; during influenza A virus infection, CUL4B-mediated ubiquitination and degradation of Mule (HUWE1) leads to Miz1 accumulation, which limits type I IFN production and favors viral replication.\",\n      \"method\": \"Miz1 loss-of-function in mouse lung epithelial cells, ChIP for HDAC1, in vitro and in vivo IAV infection, Mule/CUL4B degradation assays\",\n      \"journal\": \"Science signaling\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — ChIP, KO phenotype, and mechanistic degradation pathway defined in vitro and in vivo\",\n      \"pmids\": [\"38593156\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"ZBTB17/MIZ1 is a BTB/POZ zinc finger transcription factor that functions as a transcriptional activator of cell cycle inhibitors (p15INK4b, p21Cip1, p57Kip2), anti-apoptotic genes (BCL2), and immune pathway genes (Bcl2 via IL-7R/STAT5, Rpl22, Dph1, TMBIM4, SOCS1 repression), but switches to a transcriptional repressor when its coactivators (nucleophosmin, p300) are displaced by binding partners such as c-MYC, BCL6, Gfi-1, or MYCN, which recruit it to initiator/core promoter elements; MIZ1 also exerts transcription-independent functions (sequestration of MTDH to suppress NF-κB, cytosolic retention of PRDX6 to promote mitophagy, and suppression of TRAF2 ubiquitination to restrain JNK1 activation), and its activity is regulated post-translationally through Akt-mediated phosphorylation enabling 14-3-3η binding, Ser178 phosphorylation enabling HDAC1 recruitment for gene repression, and K48-linked polyubiquitination by Mule/HUWE1 targeting it for proteasomal degradation downstream of TNF-α or viral infection signals.\"\n}\n```","stage2_raw":"```json\n{\n  \"mechanistic_narrative\": \"ZBTB17 (MIZ1) is a BTB/POZ zinc finger transcription factor that functions as a central transcriptional switch at initiator/core promoter elements, activating cell cycle inhibitors (p15INK4b, p21Cip1, p57Kip2), anti-apoptotic genes (BCL2, TMBIM4), and diverse targets including Dph1, Rpl22, and SOCS1, but converting to a transcriptional repressor when its coactivators (nucleophosmin, p300) are displaced by binding partners such as c-MYC, BCL6, Gfi-1, or MYCN, which recruit HDAC1 to silence target loci [PMID:11283613, PMID:16142238, PMID:19164764, PMID:21123453]. MIZ1 also performs transcription-independent functions: it sequesters MTDH to suppress NF-κB signaling in hepatocytes, retains PRDX6 in the cytosol to permit Parkin-mediated mitophagy, and inhibits TRAF2 K63-linked polyubiquitination to restrain TNF-α-induced JNK1 activation [PMID:34038747, PMID:37040844, PMID:19815509]. Post-translational regulation of MIZ1 includes Akt-mediated phosphorylation enabling 14-3-3η binding to block DNA binding, Ser178 phosphorylation enabling HDAC1 recruitment for inflammatory gene repression, and K48-linked polyubiquitination by Mule/HUWE1 targeting MIZ1 for proteasomal degradation downstream of TNF-α or viral infection [PMID:15580267, PMID:23525087, PMID:20624960, PMID:38593156]. Homozygous Miz1 knockout in mice is embryonic lethal at E7.5 due to ectodermal apoptosis, and tissue-specific loss causes lineage-specific defects including loss of B and T cell progenitors via impaired IL-7R/STAT5 signaling, cerebellar neurodegeneration from defective autophagy, peripheral neuropathy, and COPD-like lung inflammation [PMID:14560010, PMID:21167753, PMID:24088869, PMID:29217679, PMID:32851183].\",\n  \"teleology\": [\n    {\n      \"year\": 1997,\n      \"claim\": \"Identification of MIZ1 as a zinc finger transcriptional activator that physically interacts with Myc established the foundational concept that Myc can repress transcription through a partner distinct from Max.\",\n      \"evidence\": \"Yeast two-hybrid, co-IP, and reporter assays in two independent studies\",\n      \"pmids\": [\"9256341\", \"9308237\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"No endogenous target genes identified yet\", \"Mechanism of Myc-mediated repression through MIZ1 undefined\"]\n    },\n    {\n      \"year\": 2001,\n      \"claim\": \"Discovery that MIZ1 binds initiator elements of p15INK4b and activates its transcription — with Myc/Max displacing coactivators to repress it — and that TGFβ/Smad signaling relieves this repression, established MIZ1 as a signal-integrating transcriptional platform at CDK inhibitor promoters.\",\n      \"evidence\": \"ChIP, reporter assays, Myc point mutants, primary MEF phenotypes, Smad epistasis across companion papers\",\n      \"pmids\": [\"11283613\", \"11283614\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"MIZ1 DNA-binding specificity/consensus not yet defined\", \"Whether this mechanism extends to other CKI promoters unknown\"]\n    },\n    {\n      \"year\": 2002,\n      \"claim\": \"Extension to p21Cip1 and identification of p300 and TopBP1 as coactivator and negative regulator, respectively, revealed a general mechanism: MIZ1 activates CKI transcription at core promoters, with Myc and other repressors competing for coactivator binding sites.\",\n      \"evidence\": \"ChIP in c-myc−/− cells, MycV394D mutant, UV irradiation, Nramp1 promoter competition assays\",\n      \"pmids\": [\"12408820\", \"12110671\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Whether p300 displacement is sufficient or HDAC recruitment is also required\", \"Full set of MIZ1 coactivators not determined\"]\n    },\n    {\n      \"year\": 2003,\n      \"claim\": \"Miz1 knockout lethality at E7.5 with ectodermal apoptosis and loss of p57Kip2 demonstrated that MIZ1 is essential for embryonic survival and has gene-specific, non-redundant transcriptional functions in vivo.\",\n      \"evidence\": \"Homologous recombination knockout, in situ hybridization, immunostaining in mouse embryos\",\n      \"pmids\": [\"14560010\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Which of many possible target genes mediate the apoptosis phenotype\", \"Tissue-specific functions beyond ectoderm undefined\"]\n    },\n    {\n      \"year\": 2004,\n      \"claim\": \"Discovery that Akt phosphorylates MIZ1 to enable 14-3-3η binding and inhibit DNA binding revealed the first post-translational regulatory mechanism controlling MIZ1 activity, linking growth factor signaling to DNA damage checkpoint recovery.\",\n      \"evidence\": \"Kinase assays, co-IP, domain mapping, cell-cycle analysis\",\n      \"pmids\": [\"15580267\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Specific phosphorylation sites on MIZ1 not fully mapped\", \"Whether other kinases regulate MIZ1 unknown\"]\n    },\n    {\n      \"year\": 2005,\n      \"claim\": \"Demonstration that BCL6 binds MIZ1 to repress p21 in germinal center B cells, and that Myc inactivation of MIZ1 is specifically required for Myc-induced apoptosis (via BCL2 repression) but dispensable for proliferation, functionally separated MIZ1-dependent transcriptional programs.\",\n      \"evidence\": \"Reciprocal co-IP, ChIP, MycV394D separation-of-function mutant, shRNA, BCL2 inhibitor rescue\",\n      \"pmids\": [\"16142238\", \"16352593\", \"17082179\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"How BCL6 versus Myc are differentially recruited to MIZ1 at overlapping promoters\", \"Role of MIZ1 in lymphomagenesis not yet tested in vivo\"]\n    },\n    {\n      \"year\": 2007,\n      \"claim\": \"Crystal structure of the MIZ1 POZ domain revealing a tetrameric architecture with a novel β-sheet dimerization interface provided the structural basis for understanding MIZ1 oligomerization and heteromeric interactions with BCL6 and NAC1.\",\n      \"evidence\": \"X-ray crystallography at 2.1 Å with solution validation; later structures of heterodimers at 2.6 Å\",\n      \"pmids\": [\"17880999\", \"20493880\", \"25484205\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"No structure of full-length MIZ1 or MIZ1-DNA complex\", \"How POZ tetramerization affects promoter binding in vivo unclear\"]\n    },\n    {\n      \"year\": 2009,\n      \"claim\": \"Identification of a transcription-independent function — MIZ1 suppresses TNFα-induced JNK1 by inhibiting TRAF2 K63-linked ubiquitination, with TNFα triggering MIZ1 proteasomal degradation to relieve this suppression — established MIZ1 as a dual-function protein operating beyond transcription.\",\n      \"evidence\": \"Miz1−/− MEFs reconstituted with transcription-deficient mutant, TRAF2 ubiquitination assays, JNK assays\",\n      \"pmids\": [\"19815509\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"How MIZ1 inhibits TRAF2 ubiquitination mechanistically\", \"Whether other non-transcriptional functions exist (later confirmed)\"]\n    },\n    {\n      \"year\": 2010,\n      \"claim\": \"Mule/HUWE1 was identified as the E3 ligase catalyzing K48-linked polyubiquitination of MIZ1 at Lys388/Lys472 upon TNFα, providing the degradation mechanism that connects TNFα signaling to JNK1 de-repression; in vivo, Mule suppresses Ras-driven tumorigenesis by preventing accumulation of Myc/MIZ1 repressor complexes.\",\n      \"evidence\": \"In vitro ubiquitination with defined E3, mutagenesis of K388/K472, Mule siRNA, conditional KO mouse with genetic epistasis\",\n      \"pmids\": [\"20624960\", \"22184250\", \"23699408\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Whether additional E3 ligases target MIZ1 in other contexts\", \"Site-specific ubiquitination in non-TNFα settings not mapped\"]\n    },\n    {\n      \"year\": 2010,\n      \"claim\": \"Conditional MIZ1 POZ-domain deletion in immune cells showed MIZ1 is essential for B and T cell development by repressing SOCS1 to enable IL-7R/STAT5 signaling and BCL2 expression, establishing MIZ1 as a master regulator of lymphocyte survival.\",\n      \"evidence\": \"Conditional Zbtb17ΔPOZ/ΔPOZ knockout, ChIP, STAT5 phosphorylation, genetic rescue with Bcl2 and SOCS1 siRNA\",\n      \"pmids\": [\"21167753\", \"21258009\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Whether MIZ1 regulates additional cytokine receptor pathways beyond IL-7R\", \"MIZ1 role in mature lymphocyte function not yet explored\"]\n    },\n    {\n      \"year\": 2013,\n      \"claim\": \"Genome-wide ChIP-seq defined the MIZ1 binding consensus and revealed targets in autophagy and vesicular transport; CNS-specific POZ deletion caused defective autophagic flux and cerebellar neurodegeneration, while Ser178 phosphorylation was shown to recruit HDAC1 for inflammatory gene repression.\",\n      \"evidence\": \"ChIP-seq, conditional Nestin-Cre KO with autophagy flux assays, phospho-site mutagenesis, ChIP for HDAC1\",\n      \"pmids\": [\"24088869\", \"23525087\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Identity of kinase phosphorylating Ser178 not determined\", \"Whether autophagy regulation is direct or indirect through target genes\"]\n    },\n    {\n      \"year\": 2016,\n      \"claim\": \"NMR structure of MIZ1 zinc fingers 3–4 revealed an autoinhibitory compact fold restricting DNA binding, explaining how MIZ1 achieves sequence specificity during promoter scanning; concurrently, the Myc/MIZ1 interaction was shown to distinguish medulloblastoma subgroups and repress circadian clock genes.\",\n      \"evidence\": \"NMR, A86K mutagenesis, MycV394D mouse tumor models, ChIP, gene expression profiling\",\n      \"pmids\": [\"28035002\", \"26766587\", \"27339797\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Full-length ZF domain–DNA co-structure not available\", \"Whether autoinhibition is relieved by partner binding\"]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"MIZ1 was shown to suppress NF-κB in lung epithelium (loss causing COPD-like disease rescued by RelA heterozygosity), to maintain AML stem cells through Myc/MIZ1-mediated Cebpα/δ repression, and to activate Dph1 transcription for diphthamide biosynthesis — expanding MIZ1 functions to innate immunity, leukemia maintenance, and translational fidelity.\",\n      \"evidence\": \"Conditional KO with RelA compound KO, MycV394D AML model, genome-wide CRISPR screen with ChIP\",\n      \"pmids\": [\"32851183\", \"32040550\", \"33057331\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Mechanism by which MIZ1 suppresses NF-κB in lung (direct or MTDH-mediated)\", \"Whether Dph1 regulation is conserved across tissues\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Two additional transcription-independent functions were established: MIZ1 sequesters MTDH to suppress NF-κB in hepatocytes (preventing HCC), and the MYC/MIZ1 complex suppresses TLR3-mediated dsRNA recognition and MHC-I expression to enable PDAC immune evasion.\",\n      \"evidence\": \"Hepatocyte-specific KO with MTDH co-IP, PDAC mouse model with TBK1 epistasis\",\n      \"pmids\": [\"34038747\", \"34145038\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Whether MTDH sequestration operates in non-hepatic tissues\", \"Structural basis of MIZ1-MTDH interaction unknown\"]\n    },\n    {\n      \"year\": 2023,\n      \"claim\": \"MIZ1 was found to retain PRDX6 in the cytosol, preventing its interaction with mitochondrial Parkin and thereby permitting mitophagy; in NASH, TNFα-induced MIZ1 degradation releases PRDX6 to inhibit mitophagy, creating a pathological feed-forward loop.\",\n      \"evidence\": \"Co-IP/mass spectrometry, hepatocyte-specific KO, human NASH liver organoids, mitophagy assays\",\n      \"pmids\": [\"37040844\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Whether PRDX6 sequestration occurs in non-hepatic tissues\", \"How MIZ1-PRDX6 binding is regulated beyond MIZ1 degradation\"]\n    },\n    {\n      \"year\": 2024,\n      \"claim\": \"MIZ1 was shown to induce TMBIM4 to control Ca²⁺ homeostasis in IgG1+ GC B cells during positive selection, and to epigenetically repress IFNα/β via HDAC1 recruitment — with viral CUL4B-mediated Mule degradation stabilizing MIZ1 to limit antiviral type I IFN responses.\",\n      \"evidence\": \"CRISPR screen in GC B cells with conditional genetics and Ca²⁺ assays; ChIP for HDAC1 at Ifn loci, Mule/CUL4B degradation pathway in IAV infection\",\n      \"pmids\": [\"38579014\", \"38593156\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Whether TMBIM4 induction is POZ-dependent\", \"How CUL4B-Mule-MIZ1 axis is engaged by other viruses\"]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"Key unresolved questions include the full-length structure of MIZ1 bound to DNA, how POZ-domain tetramerization influences promoter selectivity in vivo, the complete catalog of non-transcriptional sequestration targets, and how tissue-specific cofactor availability determines whether MIZ1 activates or represses a given locus.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"High\",\n      \"gaps\": [\"No full-length MIZ1–DNA co-crystal structure\", \"Mechanism selecting activation versus repression at individual promoters in different tissues\", \"Whether additional non-transcriptional binding partners remain to be discovered\"]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0140110\", \"supporting_discovery_ids\": [0, 2, 3, 5, 16, 30, 36, 51]},\n      {\"term_id\": \"GO:0003677\", \"supporting_discovery_ids\": [0, 2, 5, 36, 47]},\n      {\"term_id\": \"GO:0098772\", \"supporting_discovery_ids\": [23, 52, 59]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005634\", \"supporting_discovery_ids\": [4, 36, 39, 43]},\n      {\"term_id\": \"GO:0005829\", \"supporting_discovery_ids\": [4, 52, 59]},\n      {\"term_id\": \"GO:0005856\", \"supporting_discovery_ids\": [4]},\n      {\"term_id\": \"GO:0005929\", \"supporting_discovery_ids\": [39]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-1640170\", \"supporting_discovery_ids\": [2, 5, 8, 11, 48]},\n      {\"term_id\": \"R-HSA-74160\", \"supporting_discovery_ids\": [0, 2, 3, 5, 36, 51, 57]},\n      {\"term_id\": \"R-HSA-5357801\", \"supporting_discovery_ids\": [8, 14, 16, 60]},\n      {\"term_id\": \"R-HSA-168256\", \"supporting_discovery_ids\": [30, 32, 37, 49, 57, 61]},\n      {\"term_id\": \"R-HSA-162582\", \"supporting_discovery_ids\": [3, 23, 27, 33, 49, 52]},\n      {\"term_id\": \"R-HSA-4839726\", \"supporting_discovery_ids\": [25, 26, 31, 48]},\n      {\"term_id\": \"R-HSA-9612973\", \"supporting_discovery_ids\": [36, 59]},\n      {\"term_id\": \"R-HSA-1266738\", \"supporting_discovery_ids\": [8, 30, 32, 35]}\n    ],\n    \"complexes\": [\n      \"MYC/MIZ1 repressor complex\",\n      \"BCL6/MIZ1 repressor complex\",\n      \"SP1/MIZ1/MYCN/HDAC1 complex\",\n      \"Gfi-1/MIZ1/MYC complex\"\n    ],\n    \"partners\": [\n      \"MYC\",\n      \"BCL6\",\n      \"HUWE1\",\n      \"GFI1\",\n      \"NPM1\",\n      \"TOPBP1\",\n      \"HDAC1\",\n      \"MTDH\"\n    ],\n    \"other_free_text\": []\n  }\n}\n```"}