{"gene":"ZBTB32","run_date":"2026-06-11T09:02:06","timeline":{"discoveries":[{"year":2000,"finding":"ROG (ZBTB32) was identified as a GATA-3-interacting protein by molecular cloning. In vitro assays demonstrated that ROG represses GATA-3-induced transactivation, and overexpression of ROG in Th clones inhibits production of Th cytokines (IL-4, IL-5).","method":"Molecular cloning, co-immunoprecipitation/interaction assay, in vitro transactivation reporter assay, overexpression in Th clones","journal":"Immunity","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — direct protein interaction and functional repression shown by two orthogonal methods (binding + reporter assay + cytokine production), single lab","pmids":["10755619"],"is_preprint":false},{"year":2001,"finding":"The zinc finger domain of Tzfp (ZBTB32) binds sequence-specifically to the TGTACAGTGT motif (tbs) in the upstream flanking region of the Aie1 (aurora-C) kinase gene, as shown by gel mobility shift, DNase I footprinting, and competition analyses. The N-terminal BTB/POZ domain harbors repressor activity, while the zinc fingers mediate sequence-specific DNA binding.","method":"Gel mobility shift assay, DNase I footprinting, competition analysis, reporter gene assay with VP16 fusion and site-directed mutagenesis of tbs","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 1 / Strong — multiple orthogonal biochemical methods (EMSA, footprinting, mutagenesis, reporter assay) in a single rigorous study establishing both DNA binding specificity and domain function","pmids":["11279021"],"is_preprint":false},{"year":2002,"finding":"FAZF (ZBTB32) physically interacts with GATA-2 through the zinc finger region of GATA-2. The interaction interface on FAZF is distinct from that used by its homologue PLZF to bind GATA-2, suggesting mechanistically distinct regulation of GATA-2 activity by these two proteins.","method":"Co-immunoprecipitation / protein interaction assays, domain mapping","journal":"Blood","confidence":"Medium","confidence_rationale":"Tier 3 / Moderate — direct binding shown, domain mapped, replicated for two GATA family members, single lab","pmids":["11964310"],"is_preprint":false},{"year":2002,"finding":"FAZF (ZBTB32) is expressed at high levels in early-stage CD34+ hematopoietic progenitor cells and localizes to nuclear speckles at or near sites of DNA replication. Enforced expression of FAZF causes G1 accumulation followed by apoptosis in a myeloid cell line, indicating a role in cell cycle regulation during early hematopoiesis.","method":"Immunofluorescence/subcellular fractionation for localization; inducible expression system with cell cycle analysis (flow cytometry) and apoptosis assay","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — localization tied to functional consequence (G1 arrest/apoptosis) via inducible expression system, single lab, two orthogonal readouts","pmids":["11986317"],"is_preprint":false},{"year":2003,"finding":"ROG (ZBTB32) binds to a response element in IL-13 gene exon 4 in CD8 Tc2 cells and recruits HDAC1 and HDAC2, leading to repression of histone hyperacetylation at IL-4-associated nucleosomes and CD8 T cell-specific silencing of IL-4 gene activation.","method":"Chromatin immunoprecipitation (ChIP) for HDAC1/HDAC2/ROG binding; histone acetylation analysis; reporter assays","journal":"Immunity","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP demonstrates in vivo binding with HDAC recruitment, mechanistic link to chromatin remodeling, single lab","pmids":["12932361"],"is_preprint":false},{"year":2005,"finding":"ROG (ZBTB32) is a direct target gene of NF-AT and acts as a negative regulator of NF-κB activity in T cells. ROG-deficient T cells are hypersensitive to anti-CD3 stimulation and produce more IL-2 due to enhanced NF-κB activity; ROG-deficient dendritic cells also produce more IL-12p40, a NF-κB target. ROG is dispensable for Th1/Th2 differentiation in vivo.","method":"Loss-of-function (ROG knockout mice), anti-CD3 stimulation assays, cytokine ELISA, NF-κB activity assays, in vivo Th differentiation assays","journal":"Molecular and cellular biology","confidence":"High","confidence_rationale":"Tier 2 / Strong — genetic loss-of-function with defined cellular phenotype and pathway placement (NF-AT → ROG → NF-κB), multiple readouts, clearly defined mechanism","pmids":["15632058"],"is_preprint":false},{"year":2010,"finding":"Crystal structure of the FAZF (ZBTB32) BTB domain resolved at 2.0 Å revealed a non-domain-swapped dimer, unlike the strand-exchanged dimers seen in PLZF and other BTB family members. Cysteine cross-linking confirmed that the PLZF BTB dimer is strand-exchanged in solution while the FAZF BTB dimer is not, resulting in a dimerization interface approximately half the size of domain-swapped dimers.","method":"X-ray crystallography (2.0 Å), cysteine cross-linking in solution","journal":"Journal of molecular biology","confidence":"High","confidence_rationale":"Tier 1 / Strong — atomic-resolution crystal structure combined with biochemical validation (cysteine cross-linking), orthogonal methods confirming non-swapped dimer architecture","pmids":["20493880"],"is_preprint":false},{"year":2012,"finding":"Tzfp (ZBTB32) represses the piRNA cluster 1082B in pachytene spermatocytes. Loss of Tzfp leads to >1000-fold upregulation of individual piRNAs from this cluster. A 10-bp Tzfp recognition sequence within the precursor transcript was identified, and downregulation of LINE1 and IAP transposon transcripts was observed in Tzfp-deficient testes, suggesting a role in piRNA-mediated transposon control.","method":"Tzfp knockout mice, small RNA sequencing, identification of Tzfp binding sequence in piRNA precursor, transposon transcript quantification","journal":"Nucleic acids research","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — genetic loss-of-function with quantitative piRNA and transposon readouts, binding site identified, single lab","pmids":["22965116"],"is_preprint":false},{"year":2013,"finding":"Tzfp (ZBTB32) represses androgen receptor (AR) signaling in Sertoli cells of the testis. Tzfp-null mice show increased AR signaling and elevated expression of AR target genes including Gata1, Aie1, and Fanc in testis, along with reduced apoptosis in testicular tubules.","method":"Tzfp knockout mouse model, gene expression analysis, AR signaling readouts in testis","journal":"PloS one","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — genetic knockout with defined molecular and cellular phenotypes (AR signaling, target gene expression, apoptosis), single lab","pmids":["23634227"],"is_preprint":false},{"year":2014,"finding":"Zbtb32 is essential for the proliferative burst and protective capacity of virus-specific NK cells during infection. Proinflammatory cytokine signals are necessary and sufficient to induce high Zbtb32 expression in NK cells. Zbtb32 facilitates NK cell proliferation by antagonizing the anti-proliferative factor Blimp-1 (Prdm1), acting as a 'hub' that confers a proliferation-permissive state.","method":"Zbtb32 knockout mice, viral infection model, cytokine stimulation assays, genetic epistasis with Blimp-1/Prdm1","journal":"Nature immunology","confidence":"High","confidence_rationale":"Tier 2 / Strong — genetic loss-of-function with in vivo infection model, mechanism placed upstream of Blimp-1 by epistasis, cytokine-induction established by reconstitution, published in high-tier journal","pmids":["24747678"],"is_preprint":false},{"year":2015,"finding":"Zbtb32 overexpression in T cells inhibits diabetes development, T-cell expansion, and IFN-γ production in NOD mice. Zbtb32 was preferentially induced in autoreactive CD4+ T cells stimulated by tolerogenic DCIR2+ dendritic cells, identifying it as a suppressive transcription factor controlling T cell-mediated autoimmunity.","method":"Overexpression of Zbtb32 in islet-specific T cells (adoptive transfer), in vivo diabetes incidence assay, cytokine production assays, antigen targeting with chimeric antibodies","journal":"Diabetes","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — gain-of-function with defined cellular phenotype (proliferation, IFN-γ, diabetes), linked to DC-mediated induction, single lab","pmids":["26070317"],"is_preprint":false},{"year":2016,"finding":"ZBTB32 is highly expressed in memory B cells but not naive B cells and acts as a negative regulator of antibody recall responses. Zbtb32-/- memory B cells mediate more rapid and longer-lasting recall responses. Mechanistically, Zbtb32-/- secondary bone marrow plasma cells show elevated expression of genes promoting cell cycle progression and mitochondrial function, and have a cell-intrinsic survival advantage.","method":"Zbtb32 knockout mice, primary and secondary immunization, BrdU labeling, adoptive transfer, microarray gene expression analysis","journal":"Journal of immunology","confidence":"High","confidence_rationale":"Tier 2 / Strong — genetic knockout with multiple orthogonal readouts (kinetics, magnitude, BrdU, adoptive transfer, transcriptomics), cell-intrinsic mechanism confirmed","pmids":["27357154"],"is_preprint":false},{"year":2017,"finding":"ZBTB32 is transiently expressed in effector CD8+ T cells after acute virus infection. ZBTB32 and Blimp-1 are co-expressed following CD8+ T cell activation, physically bind to each other, and cooperatively regulate Blimp-1 target genes Eomes and Cd27. Persistent ZBTB32 expression suppresses memory cell formation, while ZBTB32 deficiency causes enhanced effector responses and increased memory but catastrophic immunopathology during systemic viral infection.","method":"Zbtb32 knockout mice, viral infection models, co-immunoprecipitation (ZBTB32–Blimp-1 interaction), gene expression analysis of Eomes and Cd27, adoptive transfer","journal":"PLoS pathogens","confidence":"High","confidence_rationale":"Tier 2 / Strong — physical interaction demonstrated by Co-IP, genetic loss-of-function with multiple defined phenotypes, target gene regulation, consistent with NK cell findings from a different lab","pmids":["28827827"],"is_preprint":false},{"year":2019,"finding":"ZBTB32 restricts the magnitude of memory B cell recall antibody responses specifically during chronic murine cytomegalovirus infection, leading to nearly 20-fold higher antigen-specific IgG2b in Zbtb32-/- bone marrow chimeras. ZBTB32 does not limit recall responses to acute challenges such as influenza or IgA responses in the intestine.","method":"Mixed bone marrow chimeras (Zbtb32-/- B cells), chronic and acute infection models, antigen-specific antibody ELISA, viral load measurement","journal":"Scientific reports","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — cell-intrinsic mechanism defined by chimera experiments, context-specific function established, single lab","pmids":["31649328"],"is_preprint":false},{"year":2021,"finding":"ZBTB32 is essential for glucocorticoid (GC) production in response to starvation. ZBTB32-/- mice fail to upregulate GC production during starvation. Mechanistically, GR-mediated upregulation of adrenal Scarb1 (scavenger receptor class B type 1) gene expression is absent in ZBTB32-/- mice, implicating defective cholesterol import as the cause of impaired GC synthesis. This crosstalk with the glucocorticoid receptor also affects metabolic adaptation to starvation.","method":"Zbtb32 knockout mice, starvation protocol, glucocorticoid measurement, adrenal Scarb1 gene expression analysis, metabolic phenotyping","journal":"iScience","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — genetic knockout with defined molecular mechanism (GR–Scarb1–cholesterol import axis), multiple readouts, single lab","pmids":["34337361"],"is_preprint":false},{"year":2007,"finding":"FAZF (ZBTB32) is induced by BMP2 in human mesenchymal stem cells and promotes osteoblastic differentiation. Full-length FAZF (containing zinc fingers) localizes to the nucleus and increases expression of osteoblastic markers (CBFA1/Runx2, collagen 1A1, osteocalcin, alkaline phosphatase) in C2C12 cells. A BTB/POZ-only splice variant lacking zinc fingers localizes to the cytoplasm and does not promote differentiation.","method":"BMP2 treatment of hMSCs, RT-PCR/western blot for FAZF induction, transfection of full-length vs. BTB/POZ-only FAZF in C2C12, immunofluorescence localization, osteoblast marker gene expression","journal":"Journal of cellular biochemistry","confidence":"Medium","confidence_rationale":"Tier 3 / Moderate — overexpression with domain-deletion variant and multiple differentiation marker readouts, nuclear localization required for function established, single lab","pmids":["17171645"],"is_preprint":false},{"year":2026,"finding":"Zbtb32 is highly expressed in terminally exhausted CD8+ T cells (Ttex) in the tumor microenvironment and is regulated by CD28 signaling. Zbtb32 promotes differentiation of CD8+ T cells into the Ttex subset, enhancing their cytotoxicity, proliferation, and anti-tumor capability. Mechanistically, Zbtb32 competitively binds DNA with Bcl6 (Zbtb27), particularly at the Id2 locus, to regulate the Tpex-to-Ttex transition.","method":"Tumor models, Zbtb32 knockout/overexpression in CD8+ T cells, CD28 signaling perturbation, competitive DNA binding assay (Zbtb32 vs. Bcl6 at Id2 locus), cytotoxicity and proliferation assays","journal":"The Journal of experimental medicine","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — loss- and gain-of-function with defined differentiation and functional phenotypes, competitive DNA binding mechanism proposed with experimental support, single lab, published 2026","pmids":["41649522"],"is_preprint":false}],"current_model":"ZBTB32 (also known as ROG, FAZF, TZFP) is a BTB-ZF transcription factor that uses its C-terminal zinc fingers for sequence-specific DNA binding and its N-terminal BTB/POZ domain (a non-strand-swapped homodimer) for transcriptional repression; it suppresses GATA-3/GATA-2 activity, recruits HDAC1/2 to repress cytokine gene loci, antagonizes Blimp-1 and Bcl6 to control lymphocyte proliferation and differentiation (NK cells, CD8+ T cells, memory B cells), represses androgen receptor signaling and piRNA cluster transcription in the testis, and cooperates with the glucocorticoid receptor to regulate adrenal Scarb1 expression and cholesterol-dependent glucocorticoid synthesis during starvation."},"narrative":{"mechanistic_narrative":"ZBTB32 (ROG/FAZF/TZFP) is a BTB-ZF transcriptional repressor that constrains lymphocyte proliferation and differentiation programs and contributes to gene control in non-immune tissues [PMID:10755619, PMID:24747678, PMID:28827827]. It uses C-terminal zinc fingers for sequence-specific DNA binding—recognizing a defined TGTACAGTGT-type motif—while its N-terminal BTB/POZ domain carries repressor activity; crystallographic analysis showed this BTB domain forms an unusual non-domain-swapped dimer, distinguishing it from PLZF and related family members [PMID:11279021, PMID:20493880]. ZBTB32 represses GATA-3-driven Th cytokine transactivation and physically engages GATA-2 through its zinc-finger region, and in CD8 T cells it binds the IL-13/IL-4 locus and recruits HDAC1 and HDAC2 to silence cytokine gene activation via histone deacetylation [PMID:10755619, PMID:11964310, PMID:12932361]. As a direct NF-AT target, it acts as a negative regulator of NF-κB activity, limiting IL-2 and IL-12p40 production [PMID:15632058]. Across lymphocyte lineages it functions as a proliferation/differentiation 'hub' acting through other transcriptional regulators: cytokine-induced ZBTB32 antagonizes the anti-proliferative factor Blimp-1 to enable virus-specific NK cell expansion, physically binds Blimp-1 to co-regulate Eomes and Cd27 in effector CD8+ T cells, restrains memory B cell recall responses, and competitively displaces Bcl6 at the Id2 locus to drive the terminally exhausted CD8+ T cell program in tumors [PMID:24747678, PMID:27357154, PMID:28827827, PMID:41649522]. Beyond immunity, ZBTB32 represses piRNA cluster transcription and androgen receptor signaling in the testis and cooperates with the glucocorticoid receptor to drive adrenal Scarb1 expression required for cholesterol-dependent glucocorticoid synthesis during starvation [PMID:22965116, PMID:23634227, PMID:34337361].","teleology":[{"year":2000,"claim":"Established ZBTB32 as a transcriptional repressor by showing it binds GATA-3 and suppresses GATA-3-driven Th cytokine production, framing it as a brake on cytokine gene activation.","evidence":"Molecular cloning, co-IP, reporter transactivation assay, and overexpression in Th clones","pmids":["10755619"],"confidence":"Medium","gaps":["Repression shown by overexpression; endogenous requirement not tested","DNA-binding motif not yet defined"]},{"year":2001,"claim":"Defined the molecular grammar of ZBTB32 action by mapping a sequence-specific DNA-binding motif to the zinc fingers and localizing repressor activity to the BTB/POZ domain.","evidence":"EMSA, DNase I footprinting, competition, and VP16-fusion/mutagenesis reporter assays at the Aie1 promoter","pmids":["11279021"],"confidence":"High","gaps":["Genome-wide target spectrum unknown","Corepressors mediating BTB repression not identified here"]},{"year":2002,"claim":"Extended the GATA-targeting model and revealed lineage context by showing ZBTB32 binds GATA-2 via a distinct interface from PLZF and is expressed in CD34+ progenitors where it influences the cell cycle.","evidence":"Co-IP/domain mapping for GATA-2; immunofluorescence and inducible expression with cell-cycle/apoptosis readouts in myeloid cells","pmids":["11964310","11986317"],"confidence":"Medium","gaps":["Functional consequence of GATA-2 binding not directly assayed","Cell-cycle effects shown by enforced expression only"]},{"year":2003,"claim":"Identified the repression mechanism at a cytokine locus, showing ZBTB32 recruits HDAC1/2 to enforce CD8 T cell-specific silencing through histone deacetylation.","evidence":"ChIP for ZBTB32/HDAC1/HDAC2, histone acetylation analysis, and reporter assays at the IL-13/IL-4 locus","pmids":["12932361"],"confidence":"Medium","gaps":["Direct HDAC1/2 physical interaction with ZBTB32 not isolated","Generality across other repressed loci untested"]},{"year":2005,"claim":"Placed ZBTB32 in a signaling circuit by genetics, defining it as a direct NF-AT target that negatively regulates NF-κB and dampens T cell and dendritic cell cytokine output.","evidence":"Knockout mice, anti-CD3 stimulation, cytokine ELISA, NF-κB activity assays, in vivo Th differentiation","pmids":["15632058"],"confidence":"High","gaps":["Molecular mechanism by which ZBTB32 suppresses NF-κB not resolved","Dispensable for Th1/Th2 differentiation, leaving primary in vivo role open"]},{"year":2010,"claim":"Provided the structural basis for ZBTB32 dimerization, revealing a non-domain-swapped BTB dimer that distinguishes it from PLZF and predicts a smaller interface.","evidence":"2.0 Å X-ray crystallography plus cysteine cross-linking in solution","pmids":["20493880"],"confidence":"High","gaps":["Functional consequence of the non-swapped interface for corepressor recruitment unknown","No structure of zinc fingers bound to DNA"]},{"year":2013,"claim":"Demonstrated tissue-specific repression in the testis, showing loss of ZBTB32 derepresses piRNA cluster 1082B and AR target genes with downstream transposon and apoptosis effects.","evidence":"Knockout mice, small RNA sequencing, binding-site identification, AR target gene and apoptosis analyses","pmids":["22965116","23634227"],"confidence":"Medium","gaps":["Direct vs. indirect repression of AR signaling not fully separated","Mechanism linking ZBTB32 to piRNA processing machinery unknown"]},{"year":2014,"claim":"Defined ZBTB32 as a cytokine-induced proliferation hub in NK cells acting upstream of Blimp-1, establishing its core immune logic of antagonizing an anti-proliferative factor.","evidence":"Knockout mice, viral infection model, cytokine stimulation, and genetic epistasis with Blimp-1/Prdm1","pmids":["24747678"],"confidence":"High","gaps":["Direct molecular antagonism with Blimp-1 not biochemically resolved in this study","Target genes mediating the proliferative burst not enumerated"]},{"year":2017,"claim":"Showed the Blimp-1 antagonism is a physical partnership in CD8+ T cells, where ZBTB32 binds Blimp-1 and co-regulates Eomes and Cd27 to balance effector versus memory and immunopathology.","evidence":"Knockout mice, viral infection, co-IP for ZBTB32–Blimp-1, and target gene analysis","pmids":["28827827"],"confidence":"High","gaps":["Whether ZBTB32 acts as co-repressor or co-activator at shared loci not fully defined","Genome-wide ZBTB32/Blimp-1 co-occupancy not mapped"]},{"year":2019,"claim":"Refined ZBTB32's B cell function as context-specific, restraining memory recall antibody responses during chronic infection but not acute challenge.","evidence":"Mixed bone marrow chimeras, chronic and acute infection models, antigen-specific ELISA","pmids":["27357154","31649328"],"confidence":"Medium","gaps":["Molecular targets in memory B/plasma cells not identified","Basis for chronic- vs acute-specific requirement unknown"]},{"year":2021,"claim":"Revealed a non-immune metabolic role by showing ZBTB32 is required for GR-driven adrenal Scarb1 expression and cholesterol-dependent glucocorticoid synthesis during starvation.","evidence":"Knockout mice, starvation protocol, glucocorticoid measurement, Scarb1 expression, metabolic phenotyping","pmids":["34337361"],"confidence":"Medium","gaps":["Direct ZBTB32 binding at the Scarb1 locus not shown","Physical GR–ZBTB32 cooperation not biochemically demonstrated"]},{"year":2026,"claim":"Extended the differentiation-control role to anti-tumor immunity, showing ZBTB32 competes with Bcl6 for DNA binding at Id2 to drive the terminally exhausted CD8+ T cell program.","evidence":"Tumor models, knockout/overexpression, CD28 perturbation, competitive DNA-binding assay vs. Bcl6 at Id2, cytotoxicity/proliferation assays","pmids":["41649522"],"confidence":"Medium","gaps":["Competitive binding mechanism shown in one system","Whether ZBTB32 represses or activates Id2 net output not fully resolved"]},{"year":null,"claim":"How ZBTB32's distinct non-swapped BTB dimer selects corepressors and how it switches between repressing GATA/AR/piRNA loci and competing with Blimp-1/Bcl6 at lineage genes remains unresolved.","evidence":"No genome-wide occupancy map or unified corepressor-recruitment model exists in the corpus","pmids":[],"confidence":"Low","gaps":["No genome-wide ChIP defining the full direct target set","Corepressor complex assembled on the BTB domain not identified","No human disease link established in the corpus"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0003677","term_label":"DNA binding","supporting_discovery_ids":[1,7,16]},{"term_id":"GO:0140110","term_label":"transcription regulator activity","supporting_discovery_ids":[0,1,4,5]},{"term_id":"GO:0098772","term_label":"molecular function regulator activity","supporting_discovery_ids":[0,2,9,12]}],"localization":[{"term_id":"GO:0005634","term_label":"nucleus","supporting_discovery_ids":[3,15]},{"term_id":"GO:0005654","term_label":"nucleoplasm","supporting_discovery_ids":[3]}],"pathway":[{"term_id":"R-HSA-168256","term_label":"Immune System","supporting_discovery_ids":[0,5,9,11,12,16]},{"term_id":"R-HSA-74160","term_label":"Gene expression (Transcription)","supporting_discovery_ids":[0,1,4]},{"term_id":"R-HSA-4839726","term_label":"Chromatin organization","supporting_discovery_ids":[4]}],"complexes":[],"partners":["GATA3","GATA2","HDAC1","HDAC2","PRDM1","BCL6","NR3C1"],"other_free_text":[]}},"prefetch_data":{"uniprot":{"accession":"Q9Y2Y4","full_name":"Zinc finger and BTB domain-containing protein 32","aliases":["FANCC-interacting protein","Fanconi anemia zinc finger protein","Testis zinc finger protein","Zinc finger protein 538"],"length_aa":487,"mass_kda":53.0,"function":"DNA-binding protein that binds to the to a 5'-TGTACAGTGT-3' core sequence. May function as a transcriptional transactivator and transcriptional repressor. Probably exerts its repressor effect by preventing GATA3 from binding to DNA. May play a role in regulating the differentiation and activation of helper T-cells (By similarity)","subcellular_location":"Nucleus","url":"https://www.uniprot.org/uniprotkb/Q9Y2Y4/entry"},"depmap":{"release":"DepMap","has_data":true,"is_common_essential":false,"resolved_as":"","url":"https://depmap.org/portal/gene/ZBTB32","classification":"Not Classified","n_dependent_lines":3,"n_total_lines":1208,"dependency_fraction":0.0024834437086092716},"opencell":{"profiled":false,"resolved_as":"","ensg_id":"","cell_line_id":"","localizations":[],"interactors":[],"url":"https://opencell.sf.czbiohub.org/search/ZBTB32","total_profiled":1310},"omim":[{"mim_id":"613026","title":"CHROMOSOME 19q13.11 DELETION SYNDROME, DISTAL","url":"https://www.omim.org/entry/613026"},{"mim_id":"605859","title":"ZINC FINGER- AND BTB DOMAIN-CONTAINING PROTEIN 32; ZBTB32","url":"https://www.omim.org/entry/605859"},{"mim_id":"604895","title":"T-BOX TRANSCRIPTION FACTOR 21; TBX21","url":"https://www.omim.org/entry/604895"},{"mim_id":"602030","title":"FUCOSYLTRANSFERASE 7; FUT7","url":"https://www.omim.org/entry/602030"},{"mim_id":"131320","title":"GATA-BINDING PROTEIN 3; GATA3","url":"https://www.omim.org/entry/131320"}],"hpa":{"profiled":true,"resolved_as":"","reliability":"","locations":[],"tissue_specificity":"Tissue enriched","tissue_distribution":"Detected in some","driving_tissues":[{"tissue":"testis","ntpm":47.0}],"url":"https://www.proteinatlas.org/search/ZBTB32"},"hgnc":{"alias_symbol":["TZFP","FAZF","FAXF","Rog","ZNF538","mynn"],"prev_symbol":[]},"alphafold":{"accession":"Q9Y2Y4","domains":[{"cath_id":"3.30.710.10","chopping":"7-117","consensus_level":"high","plddt":89.743,"start":7,"end":117},{"cath_id":"3.30.160.60","chopping":"374-450","consensus_level":"medium","plddt":81.0681,"start":374,"end":450}],"viewer_url":"https://alphafold.ebi.ac.uk/entry/Q9Y2Y4","model_url":"https://alphafold.ebi.ac.uk/files/AF-Q9Y2Y4-F1-model_v6.cif","pae_url":"https://alphafold.ebi.ac.uk/files/AF-Q9Y2Y4-F1-predicted_aligned_error_v6.png","plddt_mean":56.78},"mouse_models":{"mgi_url":"https://www.informatics.jax.org/marker/summary?nomen=ZBTB32","jax_strain_url":"https://www.jax.org/strain/search?query=ZBTB32"},"sequence":{"accession":"Q9Y2Y4","fasta_url":"https://rest.uniprot.org/uniprotkb/Q9Y2Y4.fasta","uniprot_url":"https://www.uniprot.org/uniprotkb/Q9Y2Y4/entry","alphafold_viewer_url":"https://alphafold.ebi.ac.uk/entry/Q9Y2Y4"}},"corpus_meta":[{"pmid":"26178914","id":"PMC_26178914","title":"CD8+ tumour-infiltrating lymphocytes in relation to HPV status and clinical outcome in patients with head and neck cancer after postoperative chemoradiotherapy: A multicentre study of the German cancer consortium radiation oncology group (DKTK-ROG).","date":"2015","source":"International journal of cancer","url":"https://pubmed.ncbi.nlm.nih.gov/26178914","citation_count":174,"is_preprint":false},{"pmid":"24747678","id":"PMC_24747678","title":"The transcription factor Zbtb32 controls the proliferative burst of virus-specific natural killer cells responding to infection.","date":"2014","source":"Nature immunology","url":"https://pubmed.ncbi.nlm.nih.gov/24747678","citation_count":119,"is_preprint":false},{"pmid":"10755619","id":"PMC_10755619","title":"ROG, repressor of GATA, regulates the expression of cytokine genes.","date":"2000","source":"Immunity","url":"https://pubmed.ncbi.nlm.nih.gov/10755619","citation_count":108,"is_preprint":false},{"pmid":"28480996","id":"PMC_28480996","title":"The PD-1/PD-L1 axis and human papilloma virus in patients with head and neck cancer after adjuvant chemoradiotherapy: A multicentre study of the German Cancer Consortium Radiation Oncology Group (DKTK-ROG).","date":"2017","source":"International journal of cancer","url":"https://pubmed.ncbi.nlm.nih.gov/28480996","citation_count":86,"is_preprint":false},{"pmid":"12932361","id":"PMC_12932361","title":"CD8 T cell-specific downregulation of histone hyperacetylation and gene activation of the IL-4 gene locus by ROG, repressor of GATA.","date":"2003","source":"Immunity","url":"https://pubmed.ncbi.nlm.nih.gov/12932361","citation_count":68,"is_preprint":false},{"pmid":"26070317","id":"PMC_26070317","title":"DCIR2+ cDC2 DCs and Zbtb32 Restore CD4+ T-Cell Tolerance and Inhibit Diabetes.","date":"2015","source":"Diabetes","url":"https://pubmed.ncbi.nlm.nih.gov/26070317","citation_count":63,"is_preprint":false},{"pmid":"32513138","id":"PMC_32513138","title":"Whole-brain irradiation with hippocampal sparing and dose escalation on metastases: neurocognitive testing and biological imaging (HIPPORAD) - a phase II prospective randomized multicenter trial (NOA-14, ARO 2015-3, DKTK-ROG).","date":"2020","source":"BMC cancer","url":"https://pubmed.ncbi.nlm.nih.gov/32513138","citation_count":50,"is_preprint":false},{"pmid":"27357154","id":"PMC_27357154","title":"ZBTB32 Restricts the Duration of Memory B Cell Recall Responses.","date":"2016","source":"Journal of immunology (Baltimore, Md. : 1950)","url":"https://pubmed.ncbi.nlm.nih.gov/27357154","citation_count":39,"is_preprint":false},{"pmid":"11279021","id":"PMC_11279021","title":"The zinc finger domain of Tzfp binds to the tbs motif located at the upstream flanking region of the Aie1 (aurora-C) kinase gene.","date":"2001","source":"The Journal of biological chemistry","url":"https://pubmed.ncbi.nlm.nih.gov/11279021","citation_count":35,"is_preprint":false},{"pmid":"11964310","id":"PMC_11964310","title":"Interactions of GATA-2 with the promyelocytic leukemia zinc finger (PLZF) protein, its homologue FAZF, and the t(11;17)-generated PLZF-retinoic acid receptor alpha oncoprotein.","date":"2002","source":"Blood","url":"https://pubmed.ncbi.nlm.nih.gov/11964310","citation_count":31,"is_preprint":false},{"pmid":"10544010","id":"PMC_10544010","title":"Identification and gene structure of a novel human PLZF-related transcription factor gene, TZFP.","date":"1999","source":"Biochemical and biophysical research communications","url":"https://pubmed.ncbi.nlm.nih.gov/10544010","citation_count":26,"is_preprint":false},{"pmid":"28827827","id":"PMC_28827827","title":"Transient expression of ZBTB32 in anti-viral CD8+ T cells limits the magnitude of the effector response and the generation of memory.","date":"2017","source":"PLoS pathogens","url":"https://pubmed.ncbi.nlm.nih.gov/28827827","citation_count":26,"is_preprint":false},{"pmid":"15632058","id":"PMC_15632058","title":"ROG negatively regulates T-cell activation but is dispensable for Th-cell differentiation.","date":"2005","source":"Molecular and cellular biology","url":"https://pubmed.ncbi.nlm.nih.gov/15632058","citation_count":26,"is_preprint":false},{"pmid":"11986317","id":"PMC_11986317","title":"The effects of the Fanconi anemia zinc finger (FAZF) on cell cycle, apoptosis, and proliferation are differentiation stage-specific.","date":"2002","source":"The Journal of biological chemistry","url":"https://pubmed.ncbi.nlm.nih.gov/11986317","citation_count":25,"is_preprint":false},{"pmid":"9202200","id":"PMC_9202200","title":"Follicle-stimulating hormone induces terminal differentiation in a predifferentiated rat granulosa cell line (ROG).","date":"1997","source":"Endocrinology","url":"https://pubmed.ncbi.nlm.nih.gov/9202200","citation_count":23,"is_preprint":false},{"pmid":"20493880","id":"PMC_20493880","title":"Insights into strand exchange in BTB domain dimers from the crystal structures of FAZF and Miz1.","date":"2010","source":"Journal of molecular biology","url":"https://pubmed.ncbi.nlm.nih.gov/20493880","citation_count":21,"is_preprint":false},{"pmid":"34332614","id":"PMC_34332614","title":"Comparison of the composition of lymphocyte subpopulations in non-relapse and relapse patients with squamous cell carcinoma of the head and neck before, during radiochemotherapy and in the follow-up period: a multicenter prospective study of the German Cancer Consortium Radiation Oncology Group (DKTK-ROG).","date":"2021","source":"Radiation oncology (London, England)","url":"https://pubmed.ncbi.nlm.nih.gov/34332614","citation_count":13,"is_preprint":false},{"pmid":"22965116","id":"PMC_22965116","title":"Alkbh1 and Tzfp repress a non-repeat piRNA cluster in pachytene spermatocytes.","date":"2012","source":"Nucleic acids research","url":"https://pubmed.ncbi.nlm.nih.gov/22965116","citation_count":12,"is_preprint":false},{"pmid":"23634227","id":"PMC_23634227","title":"Tzfp represses the androgen receptor in mouse testis.","date":"2013","source":"PloS one","url":"https://pubmed.ncbi.nlm.nih.gov/23634227","citation_count":11,"is_preprint":false},{"pmid":"31649328","id":"PMC_31649328","title":"ZBTB32 restrains antibody responses to murine cytomegalovirus infections, but not other repetitive challenges.","date":"2019","source":"Scientific reports","url":"https://pubmed.ncbi.nlm.nih.gov/31649328","citation_count":11,"is_preprint":false},{"pmid":"33872641","id":"PMC_33872641","title":"Independent external validation using the EORTC HNCG-ROG 1219 DAHANCA trial data of NTCP models for acute oral mucositis.","date":"2021","source":"Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology","url":"https://pubmed.ncbi.nlm.nih.gov/33872641","citation_count":8,"is_preprint":false},{"pmid":"17352744","id":"PMC_17352744","title":"The adaptor-like protein ROG-1 is required for activation of the Ras-MAP kinase pathway and meiotic cell cycle progression in Caenorhabditis elegans.","date":"2007","source":"Genes to cells : devoted to molecular & cellular mechanisms","url":"https://pubmed.ncbi.nlm.nih.gov/17352744","citation_count":7,"is_preprint":false},{"pmid":"34337361","id":"PMC_34337361","title":"ZBTB32 performs crosstalk with the glucocorticoid receptor and is crucial in glucocorticoid responses to starvation.","date":"2021","source":"iScience","url":"https://pubmed.ncbi.nlm.nih.gov/34337361","citation_count":5,"is_preprint":false},{"pmid":"35337943","id":"PMC_35337943","title":"ARCANE-ROG: Algorithm for reconstruction of cancer evolution from single-cell data using robust graph learning.","date":"2022","source":"Journal of biomedical informatics","url":"https://pubmed.ncbi.nlm.nih.gov/35337943","citation_count":5,"is_preprint":false},{"pmid":"29707204","id":"PMC_29707204","title":"Loss of Zbtb32 in NOD mice does not significantly alter T cell 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Tumors.","date":"2022","source":"Acta naturae","url":"https://pubmed.ncbi.nlm.nih.gov/36348719","citation_count":1,"is_preprint":false},{"pmid":"32325113","id":"PMC_32325113","title":"Fusion-PCR generates attL recombination site adaptors and allows Rapid One-Step Gateway (ROG) cloning.","date":"2020","source":"Biochimie","url":"https://pubmed.ncbi.nlm.nih.gov/32325113","citation_count":1,"is_preprint":false},{"pmid":"41649522","id":"PMC_41649522","title":"Zbtb32 promotes CD8+ T cell differentiation and function in cancer.","date":"2026","source":"The Journal of experimental medicine","url":"https://pubmed.ncbi.nlm.nih.gov/41649522","citation_count":0,"is_preprint":false}],"cost":{"stage1":{"model":"claude-sonnet-4-6","input_tokens":16369,"output_tokens":4628,"usd":0.059263,"stage1_stop_reason":"end_turn"},"stage2":{"model":"claude-opus-4-8","input_tokens":12783,"output_tokens":4152,"usd":0.083858,"stage2_stop_reason":"end_turn"},"total_usd":0.143121,"stage1_batch_id":"msgbatch_01UT1AahFPCAyn2uVweS7A9z","stage2_batch_id":"msgbatch_01HuKWtKNT4Pqj1bc8eEP5RV","note":"batch pricing = 50% of standard"},"stage1_raw":"```json\n{\n  \"discoveries\": [\n    {\n      \"year\": 2000,\n      \"finding\": \"ROG (ZBTB32) was identified as a GATA-3-interacting protein by molecular cloning. In vitro assays demonstrated that ROG represses GATA-3-induced transactivation, and overexpression of ROG in Th clones inhibits production of Th cytokines (IL-4, IL-5).\",\n      \"method\": \"Molecular cloning, co-immunoprecipitation/interaction assay, in vitro transactivation reporter assay, overexpression in Th clones\",\n      \"journal\": \"Immunity\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — direct protein interaction and functional repression shown by two orthogonal methods (binding + reporter assay + cytokine production), single lab\",\n      \"pmids\": [\"10755619\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2001,\n      \"finding\": \"The zinc finger domain of Tzfp (ZBTB32) binds sequence-specifically to the TGTACAGTGT motif (tbs) in the upstream flanking region of the Aie1 (aurora-C) kinase gene, as shown by gel mobility shift, DNase I footprinting, and competition analyses. The N-terminal BTB/POZ domain harbors repressor activity, while the zinc fingers mediate sequence-specific DNA binding.\",\n      \"method\": \"Gel mobility shift assay, DNase I footprinting, competition analysis, reporter gene assay with VP16 fusion and site-directed mutagenesis of tbs\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — multiple orthogonal biochemical methods (EMSA, footprinting, mutagenesis, reporter assay) in a single rigorous study establishing both DNA binding specificity and domain function\",\n      \"pmids\": [\"11279021\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2002,\n      \"finding\": \"FAZF (ZBTB32) physically interacts with GATA-2 through the zinc finger region of GATA-2. The interaction interface on FAZF is distinct from that used by its homologue PLZF to bind GATA-2, suggesting mechanistically distinct regulation of GATA-2 activity by these two proteins.\",\n      \"method\": \"Co-immunoprecipitation / protein interaction assays, domain mapping\",\n      \"journal\": \"Blood\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 3 / Moderate — direct binding shown, domain mapped, replicated for two GATA family members, single lab\",\n      \"pmids\": [\"11964310\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2002,\n      \"finding\": \"FAZF (ZBTB32) is expressed at high levels in early-stage CD34+ hematopoietic progenitor cells and localizes to nuclear speckles at or near sites of DNA replication. Enforced expression of FAZF causes G1 accumulation followed by apoptosis in a myeloid cell line, indicating a role in cell cycle regulation during early hematopoiesis.\",\n      \"method\": \"Immunofluorescence/subcellular fractionation for localization; inducible expression system with cell cycle analysis (flow cytometry) and apoptosis assay\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — localization tied to functional consequence (G1 arrest/apoptosis) via inducible expression system, single lab, two orthogonal readouts\",\n      \"pmids\": [\"11986317\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2003,\n      \"finding\": \"ROG (ZBTB32) binds to a response element in IL-13 gene exon 4 in CD8 Tc2 cells and recruits HDAC1 and HDAC2, leading to repression of histone hyperacetylation at IL-4-associated nucleosomes and CD8 T cell-specific silencing of IL-4 gene activation.\",\n      \"method\": \"Chromatin immunoprecipitation (ChIP) for HDAC1/HDAC2/ROG binding; histone acetylation analysis; reporter assays\",\n      \"journal\": \"Immunity\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP demonstrates in vivo binding with HDAC recruitment, mechanistic link to chromatin remodeling, single lab\",\n      \"pmids\": [\"12932361\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2005,\n      \"finding\": \"ROG (ZBTB32) is a direct target gene of NF-AT and acts as a negative regulator of NF-κB activity in T cells. ROG-deficient T cells are hypersensitive to anti-CD3 stimulation and produce more IL-2 due to enhanced NF-κB activity; ROG-deficient dendritic cells also produce more IL-12p40, a NF-κB target. ROG is dispensable for Th1/Th2 differentiation in vivo.\",\n      \"method\": \"Loss-of-function (ROG knockout mice), anti-CD3 stimulation assays, cytokine ELISA, NF-κB activity assays, in vivo Th differentiation assays\",\n      \"journal\": \"Molecular and cellular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — genetic loss-of-function with defined cellular phenotype and pathway placement (NF-AT → ROG → NF-κB), multiple readouts, clearly defined mechanism\",\n      \"pmids\": [\"15632058\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"Crystal structure of the FAZF (ZBTB32) BTB domain resolved at 2.0 Å revealed a non-domain-swapped dimer, unlike the strand-exchanged dimers seen in PLZF and other BTB family members. Cysteine cross-linking confirmed that the PLZF BTB dimer is strand-exchanged in solution while the FAZF BTB dimer is not, resulting in a dimerization interface approximately half the size of domain-swapped dimers.\",\n      \"method\": \"X-ray crystallography (2.0 Å), cysteine cross-linking in solution\",\n      \"journal\": \"Journal of molecular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — atomic-resolution crystal structure combined with biochemical validation (cysteine cross-linking), orthogonal methods confirming non-swapped dimer architecture\",\n      \"pmids\": [\"20493880\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2012,\n      \"finding\": \"Tzfp (ZBTB32) represses the piRNA cluster 1082B in pachytene spermatocytes. Loss of Tzfp leads to >1000-fold upregulation of individual piRNAs from this cluster. A 10-bp Tzfp recognition sequence within the precursor transcript was identified, and downregulation of LINE1 and IAP transposon transcripts was observed in Tzfp-deficient testes, suggesting a role in piRNA-mediated transposon control.\",\n      \"method\": \"Tzfp knockout mice, small RNA sequencing, identification of Tzfp binding sequence in piRNA precursor, transposon transcript quantification\",\n      \"journal\": \"Nucleic acids research\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — genetic loss-of-function with quantitative piRNA and transposon readouts, binding site identified, single lab\",\n      \"pmids\": [\"22965116\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2013,\n      \"finding\": \"Tzfp (ZBTB32) represses androgen receptor (AR) signaling in Sertoli cells of the testis. Tzfp-null mice show increased AR signaling and elevated expression of AR target genes including Gata1, Aie1, and Fanc in testis, along with reduced apoptosis in testicular tubules.\",\n      \"method\": \"Tzfp knockout mouse model, gene expression analysis, AR signaling readouts in testis\",\n      \"journal\": \"PloS one\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — genetic knockout with defined molecular and cellular phenotypes (AR signaling, target gene expression, apoptosis), single lab\",\n      \"pmids\": [\"23634227\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"Zbtb32 is essential for the proliferative burst and protective capacity of virus-specific NK cells during infection. Proinflammatory cytokine signals are necessary and sufficient to induce high Zbtb32 expression in NK cells. Zbtb32 facilitates NK cell proliferation by antagonizing the anti-proliferative factor Blimp-1 (Prdm1), acting as a 'hub' that confers a proliferation-permissive state.\",\n      \"method\": \"Zbtb32 knockout mice, viral infection model, cytokine stimulation assays, genetic epistasis with Blimp-1/Prdm1\",\n      \"journal\": \"Nature immunology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — genetic loss-of-function with in vivo infection model, mechanism placed upstream of Blimp-1 by epistasis, cytokine-induction established by reconstitution, published in high-tier journal\",\n      \"pmids\": [\"24747678\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"Zbtb32 overexpression in T cells inhibits diabetes development, T-cell expansion, and IFN-γ production in NOD mice. Zbtb32 was preferentially induced in autoreactive CD4+ T cells stimulated by tolerogenic DCIR2+ dendritic cells, identifying it as a suppressive transcription factor controlling T cell-mediated autoimmunity.\",\n      \"method\": \"Overexpression of Zbtb32 in islet-specific T cells (adoptive transfer), in vivo diabetes incidence assay, cytokine production assays, antigen targeting with chimeric antibodies\",\n      \"journal\": \"Diabetes\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — gain-of-function with defined cellular phenotype (proliferation, IFN-γ, diabetes), linked to DC-mediated induction, single lab\",\n      \"pmids\": [\"26070317\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"ZBTB32 is highly expressed in memory B cells but not naive B cells and acts as a negative regulator of antibody recall responses. Zbtb32-/- memory B cells mediate more rapid and longer-lasting recall responses. Mechanistically, Zbtb32-/- secondary bone marrow plasma cells show elevated expression of genes promoting cell cycle progression and mitochondrial function, and have a cell-intrinsic survival advantage.\",\n      \"method\": \"Zbtb32 knockout mice, primary and secondary immunization, BrdU labeling, adoptive transfer, microarray gene expression analysis\",\n      \"journal\": \"Journal of immunology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — genetic knockout with multiple orthogonal readouts (kinetics, magnitude, BrdU, adoptive transfer, transcriptomics), cell-intrinsic mechanism confirmed\",\n      \"pmids\": [\"27357154\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"ZBTB32 is transiently expressed in effector CD8+ T cells after acute virus infection. ZBTB32 and Blimp-1 are co-expressed following CD8+ T cell activation, physically bind to each other, and cooperatively regulate Blimp-1 target genes Eomes and Cd27. Persistent ZBTB32 expression suppresses memory cell formation, while ZBTB32 deficiency causes enhanced effector responses and increased memory but catastrophic immunopathology during systemic viral infection.\",\n      \"method\": \"Zbtb32 knockout mice, viral infection models, co-immunoprecipitation (ZBTB32–Blimp-1 interaction), gene expression analysis of Eomes and Cd27, adoptive transfer\",\n      \"journal\": \"PLoS pathogens\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — physical interaction demonstrated by Co-IP, genetic loss-of-function with multiple defined phenotypes, target gene regulation, consistent with NK cell findings from a different lab\",\n      \"pmids\": [\"28827827\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"ZBTB32 restricts the magnitude of memory B cell recall antibody responses specifically during chronic murine cytomegalovirus infection, leading to nearly 20-fold higher antigen-specific IgG2b in Zbtb32-/- bone marrow chimeras. ZBTB32 does not limit recall responses to acute challenges such as influenza or IgA responses in the intestine.\",\n      \"method\": \"Mixed bone marrow chimeras (Zbtb32-/- B cells), chronic and acute infection models, antigen-specific antibody ELISA, viral load measurement\",\n      \"journal\": \"Scientific reports\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — cell-intrinsic mechanism defined by chimera experiments, context-specific function established, single lab\",\n      \"pmids\": [\"31649328\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"ZBTB32 is essential for glucocorticoid (GC) production in response to starvation. ZBTB32-/- mice fail to upregulate GC production during starvation. Mechanistically, GR-mediated upregulation of adrenal Scarb1 (scavenger receptor class B type 1) gene expression is absent in ZBTB32-/- mice, implicating defective cholesterol import as the cause of impaired GC synthesis. This crosstalk with the glucocorticoid receptor also affects metabolic adaptation to starvation.\",\n      \"method\": \"Zbtb32 knockout mice, starvation protocol, glucocorticoid measurement, adrenal Scarb1 gene expression analysis, metabolic phenotyping\",\n      \"journal\": \"iScience\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — genetic knockout with defined molecular mechanism (GR–Scarb1–cholesterol import axis), multiple readouts, single lab\",\n      \"pmids\": [\"34337361\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2007,\n      \"finding\": \"FAZF (ZBTB32) is induced by BMP2 in human mesenchymal stem cells and promotes osteoblastic differentiation. Full-length FAZF (containing zinc fingers) localizes to the nucleus and increases expression of osteoblastic markers (CBFA1/Runx2, collagen 1A1, osteocalcin, alkaline phosphatase) in C2C12 cells. A BTB/POZ-only splice variant lacking zinc fingers localizes to the cytoplasm and does not promote differentiation.\",\n      \"method\": \"BMP2 treatment of hMSCs, RT-PCR/western blot for FAZF induction, transfection of full-length vs. BTB/POZ-only FAZF in C2C12, immunofluorescence localization, osteoblast marker gene expression\",\n      \"journal\": \"Journal of cellular biochemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 3 / Moderate — overexpression with domain-deletion variant and multiple differentiation marker readouts, nuclear localization required for function established, single lab\",\n      \"pmids\": [\"17171645\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2026,\n      \"finding\": \"Zbtb32 is highly expressed in terminally exhausted CD8+ T cells (Ttex) in the tumor microenvironment and is regulated by CD28 signaling. Zbtb32 promotes differentiation of CD8+ T cells into the Ttex subset, enhancing their cytotoxicity, proliferation, and anti-tumor capability. Mechanistically, Zbtb32 competitively binds DNA with Bcl6 (Zbtb27), particularly at the Id2 locus, to regulate the Tpex-to-Ttex transition.\",\n      \"method\": \"Tumor models, Zbtb32 knockout/overexpression in CD8+ T cells, CD28 signaling perturbation, competitive DNA binding assay (Zbtb32 vs. Bcl6 at Id2 locus), cytotoxicity and proliferation assays\",\n      \"journal\": \"The Journal of experimental medicine\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — loss- and gain-of-function with defined differentiation and functional phenotypes, competitive DNA binding mechanism proposed with experimental support, single lab, published 2026\",\n      \"pmids\": [\"41649522\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"ZBTB32 (also known as ROG, FAZF, TZFP) is a BTB-ZF transcription factor that uses its C-terminal zinc fingers for sequence-specific DNA binding and its N-terminal BTB/POZ domain (a non-strand-swapped homodimer) for transcriptional repression; it suppresses GATA-3/GATA-2 activity, recruits HDAC1/2 to repress cytokine gene loci, antagonizes Blimp-1 and Bcl6 to control lymphocyte proliferation and differentiation (NK cells, CD8+ T cells, memory B cells), represses androgen receptor signaling and piRNA cluster transcription in the testis, and cooperates with the glucocorticoid receptor to regulate adrenal Scarb1 expression and cholesterol-dependent glucocorticoid synthesis during starvation.\"\n}\n```","stage2_raw":"{\n  \"mechanistic_narrative\": \"ZBTB32 (ROG/FAZF/TZFP) is a BTB-ZF transcriptional repressor that constrains lymphocyte proliferation and differentiation programs and contributes to gene control in non-immune tissues [#0, #9, #12]. It uses C-terminal zinc fingers for sequence-specific DNA binding—recognizing a defined TGTACAGTGT-type motif—while its N-terminal BTB/POZ domain carries repressor activity; crystallographic analysis showed this BTB domain forms an unusual non-domain-swapped dimer, distinguishing it from PLZF and related family members [#1, #6]. ZBTB32 represses GATA-3-driven Th cytokine transactivation and physically engages GATA-2 through its zinc-finger region, and in CD8 T cells it binds the IL-13/IL-4 locus and recruits HDAC1 and HDAC2 to silence cytokine gene activation via histone deacetylation [#0, #2, #4]. As a direct NF-AT target, it acts as a negative regulator of NF-\\u03baB activity, limiting IL-2 and IL-12p40 production [#5]. Across lymphocyte lineages it functions as a proliferation/differentiation 'hub' acting through other transcriptional regulators: cytokine-induced ZBTB32 antagonizes the anti-proliferative factor Blimp-1 to enable virus-specific NK cell expansion, physically binds Blimp-1 to co-regulate Eomes and Cd27 in effector CD8+ T cells, restrains memory B cell recall responses, and competitively displaces Bcl6 at the Id2 locus to drive the terminally exhausted CD8+ T cell program in tumors [#9, #11, #12, #16]. Beyond immunity, ZBTB32 represses piRNA cluster transcription and androgen receptor signaling in the testis and cooperates with the glucocorticoid receptor to drive adrenal Scarb1 expression required for cholesterol-dependent glucocorticoid synthesis during starvation [#7, #8, #14].\",\n  \"teleology\": [\n    {\n      \"year\": 2000,\n      \"claim\": \"Established ZBTB32 as a transcriptional repressor by showing it binds GATA-3 and suppresses GATA-3-driven Th cytokine production, framing it as a brake on cytokine gene activation.\",\n      \"evidence\": \"Molecular cloning, co-IP, reporter transactivation assay, and overexpression in Th clones\",\n      \"pmids\": [\"10755619\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Repression shown by overexpression; endogenous requirement not tested\", \"DNA-binding motif not yet defined\"]\n    },\n    {\n      \"year\": 2001,\n      \"claim\": \"Defined the molecular grammar of ZBTB32 action by mapping a sequence-specific DNA-binding motif to the zinc fingers and localizing repressor activity to the BTB/POZ domain.\",\n      \"evidence\": \"EMSA, DNase I footprinting, competition, and VP16-fusion/mutagenesis reporter assays at the Aie1 promoter\",\n      \"pmids\": [\"11279021\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Genome-wide target spectrum unknown\", \"Corepressors mediating BTB repression not identified here\"]\n    },\n    {\n      \"year\": 2002,\n      \"claim\": \"Extended the GATA-targeting model and revealed lineage context by showing ZBTB32 binds GATA-2 via a distinct interface from PLZF and is expressed in CD34+ progenitors where it influences the cell cycle.\",\n      \"evidence\": \"Co-IP/domain mapping for GATA-2; immunofluorescence and inducible expression with cell-cycle/apoptosis readouts in myeloid cells\",\n      \"pmids\": [\"11964310\", \"11986317\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Functional consequence of GATA-2 binding not directly assayed\", \"Cell-cycle effects shown by enforced expression only\"]\n    },\n    {\n      \"year\": 2003,\n      \"claim\": \"Identified the repression mechanism at a cytokine locus, showing ZBTB32 recruits HDAC1/2 to enforce CD8 T cell-specific silencing through histone deacetylation.\",\n      \"evidence\": \"ChIP for ZBTB32/HDAC1/HDAC2, histone acetylation analysis, and reporter assays at the IL-13/IL-4 locus\",\n      \"pmids\": [\"12932361\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Direct HDAC1/2 physical interaction with ZBTB32 not isolated\", \"Generality across other repressed loci untested\"]\n    },\n    {\n      \"year\": 2005,\n      \"claim\": \"Placed ZBTB32 in a signaling circuit by genetics, defining it as a direct NF-AT target that negatively regulates NF-\\u03baB and dampens T cell and dendritic cell cytokine output.\",\n      \"evidence\": \"Knockout mice, anti-CD3 stimulation, cytokine ELISA, NF-\\u03baB activity assays, in vivo Th differentiation\",\n      \"pmids\": [\"15632058\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Molecular mechanism by which ZBTB32 suppresses NF-\\u03baB not resolved\", \"Dispensable for Th1/Th2 differentiation, leaving primary in vivo role open\"]\n    },\n    {\n      \"year\": 2010,\n      \"claim\": \"Provided the structural basis for ZBTB32 dimerization, revealing a non-domain-swapped BTB dimer that distinguishes it from PLZF and predicts a smaller interface.\",\n      \"evidence\": \"2.0 \\u00c5 X-ray crystallography plus cysteine cross-linking in solution\",\n      \"pmids\": [\"20493880\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Functional consequence of the non-swapped interface for corepressor recruitment unknown\", \"No structure of zinc fingers bound to DNA\"]\n    },\n    {\n      \"year\": 2013,\n      \"claim\": \"Demonstrated tissue-specific repression in the testis, showing loss of ZBTB32 derepresses piRNA cluster 1082B and AR target genes with downstream transposon and apoptosis effects.\",\n      \"evidence\": \"Knockout mice, small RNA sequencing, binding-site identification, AR target gene and apoptosis analyses\",\n      \"pmids\": [\"22965116\", \"23634227\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Direct vs. indirect repression of AR signaling not fully separated\", \"Mechanism linking ZBTB32 to piRNA processing machinery unknown\"]\n    },\n    {\n      \"year\": 2014,\n      \"claim\": \"Defined ZBTB32 as a cytokine-induced proliferation hub in NK cells acting upstream of Blimp-1, establishing its core immune logic of antagonizing an anti-proliferative factor.\",\n      \"evidence\": \"Knockout mice, viral infection model, cytokine stimulation, and genetic epistasis with Blimp-1/Prdm1\",\n      \"pmids\": [\"24747678\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Direct molecular antagonism with Blimp-1 not biochemically resolved in this study\", \"Target genes mediating the proliferative burst not enumerated\"]\n    },\n    {\n      \"year\": 2017,\n      \"claim\": \"Showed the Blimp-1 antagonism is a physical partnership in CD8+ T cells, where ZBTB32 binds Blimp-1 and co-regulates Eomes and Cd27 to balance effector versus memory and immunopathology.\",\n      \"evidence\": \"Knockout mice, viral infection, co-IP for ZBTB32\\u2013Blimp-1, and target gene analysis\",\n      \"pmids\": [\"28827827\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Whether ZBTB32 acts as co-repressor or co-activator at shared loci not fully defined\", \"Genome-wide ZBTB32/Blimp-1 co-occupancy not mapped\"]\n    },\n    {\n      \"year\": 2019,\n      \"claim\": \"Refined ZBTB32's B cell function as context-specific, restraining memory recall antibody responses during chronic infection but not acute challenge.\",\n      \"evidence\": \"Mixed bone marrow chimeras, chronic and acute infection models, antigen-specific ELISA\",\n      \"pmids\": [\"27357154\", \"31649328\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Molecular targets in memory B/plasma cells not identified\", \"Basis for chronic- vs acute-specific requirement unknown\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Revealed a non-immune metabolic role by showing ZBTB32 is required for GR-driven adrenal Scarb1 expression and cholesterol-dependent glucocorticoid synthesis during starvation.\",\n      \"evidence\": \"Knockout mice, starvation protocol, glucocorticoid measurement, Scarb1 expression, metabolic phenotyping\",\n      \"pmids\": [\"34337361\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Direct ZBTB32 binding at the Scarb1 locus not shown\", \"Physical GR\\u2013ZBTB32 cooperation not biochemically demonstrated\"]\n    },\n    {\n      \"year\": 2026,\n      \"claim\": \"Extended the differentiation-control role to anti-tumor immunity, showing ZBTB32 competes with Bcl6 for DNA binding at Id2 to drive the terminally exhausted CD8+ T cell program.\",\n      \"evidence\": \"Tumor models, knockout/overexpression, CD28 perturbation, competitive DNA-binding assay vs. Bcl6 at Id2, cytotoxicity/proliferation assays\",\n      \"pmids\": [\"41649522\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Competitive binding mechanism shown in one system\", \"Whether ZBTB32 represses or activates Id2 net output not fully resolved\"]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"How ZBTB32's distinct non-swapped BTB dimer selects corepressors and how it switches between repressing GATA/AR/piRNA loci and competing with Blimp-1/Bcl6 at lineage genes remains unresolved.\",\n      \"evidence\": \"No genome-wide occupancy map or unified corepressor-recruitment model exists in the corpus\",\n      \"pmids\": [],\n      \"confidence\": \"Low\",\n      \"gaps\": [\"No genome-wide ChIP defining the full direct target set\", \"Corepressor complex assembled on the BTB domain not identified\", \"No human disease link established in the corpus\"]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0003677\", \"supporting_discovery_ids\": [1, 7, 16]},\n      {\"term_id\": \"GO:0140110\", \"supporting_discovery_ids\": [0, 1, 4, 5]},\n      {\"term_id\": \"GO:0098772\", \"supporting_discovery_ids\": [0, 2, 9, 12]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005634\", \"supporting_discovery_ids\": [3, 15]},\n      {\"term_id\": \"GO:0005654\", \"supporting_discovery_ids\": [3]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-168256\", \"supporting_discovery_ids\": [0, 5, 9, 11, 12, 16]},\n      {\"term_id\": \"R-HSA-74160\", \"supporting_discovery_ids\": [0, 1, 4]},\n      {\"term_id\": \"R-HSA-4839726\", \"supporting_discovery_ids\": [4]}\n    ],\n    \"complexes\": [],\n    \"partners\": [\"GATA3\", \"GATA2\", \"HDAC1\", \"HDAC2\", \"PRDM1\", \"BCL6\", \"NR3C1\"],\n    \"other_free_text\": []\n  }\n}","audit_flag":null,"evaluation":{"pairwise":"win","faith_supported":6,"faith_total":6,"faith_pct":100.0}}