{"gene":"SATB2","run_date":"2026-06-10T07:46:29","timeline":{"discoveries":[{"year":2008,"finding":"SATB2 binds directly to regulatory/genomic regions of the Ctip2 locus and induces changes in chromatin structure, thereby repressing Ctip2 expression and acting as a determinant of upper-layer (callosal) versus deep-layer (corticospinal) neuron identity in the developing neocortex.","method":"Chromatin immunoprecipitation (ChIP), ectopic expression of SATB2 in neural stem cells, genetic loss-of-function (Satb2 knockout mice) with axonal projection and gene expression readouts","journal":"Neuron","confidence":"High","confidence_rationale":"Tier 2 / Strong — reciprocal functional experiments (KO + ectopic expression), direct ChIP binding at Ctip2 locus, replicated independently in two concurrent papers (PMID:18255031 and PMID:18255030)","pmids":["18255031","18255030"],"is_preprint":false},{"year":2006,"finding":"SATB2 directly interacts with and enhances the transcriptional activity of both Runx2 and ATF4, transcription factors required for osteoblast differentiation; synergy was genetically confirmed by bone formation defects in Satb2/Runx2 and Satb2/Atf4 double-heterozygous mice. SATB2 also directly represses Hoxa2 expression.","method":"Co-immunoprecipitation (protein-protein interaction), luciferase transactivation assays, genetic epistasis (double-heterozygous mouse crosses), Satb2-/- mouse phenotypic analysis","journal":"Cell","confidence":"High","confidence_rationale":"Tier 1-2 / Strong — multiple orthogonal methods (co-IP, reporter assay, in vivo genetic epistasis) in a single rigorous study","pmids":["16751105"],"is_preprint":false},{"year":2008,"finding":"SATB2 physically interacts with HDAC1 and MTA2 (members of the NuRD/NURD chromatin-remodeling and histone deacetylase complex) in developing cortical neurons; this interaction is required for its repressor function at AT-rich DNA sites, as HDAC inhibitor TSA reverses SATB2-mediated repression.","method":"In vitro DNA-affinity pre-incubation specificity test, chromatin immunoprecipitation (ChIP), TSA pharmacological inhibition, semi-quantitative ChIP in knockout vs. wild-type cortices","journal":"The European journal of neuroscience","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — multiple orthogonal methods (in vitro binding, ChIP, pharmacological rescue) in a single lab","pmids":["18333962"],"is_preprint":false},{"year":2009,"finding":"SATB2 and SATB1 both bind the Nanog locus in vivo in embryonic stem cells and have opposing effects on Nanog expression and ES cell pluripotency; forced Satb2 expression antagonizes differentiation-associated silencing of Nanog, whereas Satb1 promotes silencing.","method":"ChIP (binding to Nanog locus), Satb1/Satb2 single and double knockout ES cells, forced expression, cell fusion reprogramming assays","journal":"Genes & development","confidence":"High","confidence_rationale":"Tier 2 / Strong — reciprocal genetic experiments (single and double KO + forced expression) with direct ChIP evidence for locus binding","pmids":["19933152"],"is_preprint":false},{"year":2010,"finding":"SATB2 physically interacts with ΔNp63α and augments ΔNp63α-mediated transrepression by enhancing ΔNp63α engagement to p53-family responsive elements, thereby promoting chemoresistance in head and neck squamous cell carcinoma; RNAi knockdown of SATB2 re-sensitizes cells to chemotherapy/γ-irradiation-induced apoptosis.","method":"Co-immunoprecipitation, chromatin immunoprecipitation, shRNA knockdown with apoptosis readout, reporter assays","journal":"EMBO reports","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus ChIP plus functional KD rescue, single lab","pmids":["20829881"],"is_preprint":false},{"year":2014,"finding":"Satb2 and Ctip2 directly and negatively regulate expression of the Netrin1 receptors DCC and Unc5C, respectively, placing these axon guidance molecules downstream of Satb2/Ctip2 in the transcriptional network controlling callosal versus corticofugal axon guidance.","method":"Genetic loss-of-function (Satb2 and Ctip2 knockout mice), gene expression analysis, epistasis","journal":"Nature communications","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — genetic epistasis in vivo with direct expression readouts, single lab","pmids":["24739528"],"is_preprint":false},{"year":2016,"finding":"In adult hippocampal neurons, synaptic activity and BDNF upregulate Satb2, which then binds to promoters of coding and non-coding genes and controls hippocampal levels of a large cohort of miRNAs implicated in synaptic plasticity; conditional deletion of Satb2 from adult forebrain prevents stabilization of long-term potentiation and impairs long-term memory.","method":"Conditional knockout (Satb2 adult forebrain-specific CKO), ChIP (promoter binding), LTP electrophysiology, fear conditioning and object discrimination behavioral assays, miRNA profiling","journal":"eLife","confidence":"High","confidence_rationale":"Tier 2 / Strong — multiple orthogonal methods (CKO, ChIP, electrophysiology, behavior) with direct mechanistic readouts in a single rigorous study","pmids":["27897969"],"is_preprint":false},{"year":2017,"finding":"Missense mutations in the CUT1 domain of SATB2 (e.g., p.Arg389Cys) increase nuclear mobility of the protein, while mutations in CUT2 or between CUT2 and HOX (p.Gly515Ser, p.Gln566Lys) reduce mobility, indicating that these domains mediate chromatin/matrix association; truncated proteins retaining all three DNA-binding domains are produced from last-exon nonsense mutations.","method":"Fluorescence recovery after photobleaching (FRAP) of fluorescently-tagged mutant SATB2 in patient-derived fibroblasts, western blot for protein production","journal":"Genetics in medicine","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — direct live-imaging FRAP with multiple disease variants, single lab","pmids":["28151491"],"is_preprint":false},{"year":2019,"finding":"In BCR-ABL+ leukemias, the atypical protein kinase C isoform aPKCλ/ι acts through an ERK-dependent pathway to form an Etv5/SATB2 chromatin repressive signaling complex that downregulates key B-cell differentiation genes, driving differentiation arrest; genetic or pharmacological targeting of aPKCλ/ι impairs leukemic transformation.","method":"In vitro and in vivo B-cell transformation assays, genetic knockouts and pharmacological inhibition of aPKCλ/ι, chromatin repression assays, primary human and murine BCR-ABL+ leukemic progenitors","journal":"Nature communications","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — in vivo genetic and pharmacological epistasis with mechanistic complex identification, single lab","pmids":["30610188"],"is_preprint":false},{"year":2020,"finding":"SATB2 recruits histone acetyltransferase CBP to the MAR sequence of the FOXM1 gene locus, activating FOXM1 expression and promoting cell proliferation in glioblastoma stem cells; pharmacological inhibition of SATB2/CBP interaction with the CBP inhibitor C646 suppresses glioma stem cell proliferation and GBM tumor growth.","method":"ChIP (SATB2 binding at FOXM1 MAR), co-immunoprecipitation (SATB2-CBP interaction), shRNA knockdown, pharmacological inhibition (C646), in vitro and in vivo tumor growth assays","journal":"EMBO molecular medicine","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus ChIP plus pharmacological and genetic functional validation, single lab","pmids":["33124191"],"is_preprint":false},{"year":2020,"finding":"SATB2 interacts with the inner nuclear membrane protein LEMD2 and the ESCRT-III/VPS4 membrane-remodeling complex; this interaction mediates activity-dependent nuclear shape plasticity in hippocampal CA1 neurons and is required for neuronal activity-dependent regulation of rapid and delayed primary response genes linked to cognition.","method":"Co-immunoprecipitation (SATB2-LEMD2), in vivo novel environment exposure + nuclear shape measurement, LEMD2 depletion in cortical neurons with gene expression readouts","journal":"The EMBO journal","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus in vivo functional experiments, single lab","pmids":["33319920"],"is_preprint":false},{"year":2021,"finding":"ZFP451-mediated SUMO2 modification of SATB2 at two acceptor lysines drives embryonic stem cell differentiation; SUMOylation enables SATB2 to interact with ZFP451 and the LSD1/CoREST complex, gain binding at differentiation genes, silence pluripotency genes including Nanog, and alter higher-order chromatin interactions. Mutations at SUMO-acceptor lysines or ZFP451 knockout impairs these responses.","method":"Conditional Satb2 knockout, Satb2 SUMO-acceptor lysine point mutants, Zfp451 knockout, SUMO2-SATB2 fusion rescue experiments, ChIP, Hi-C/chromatin interaction mapping, co-immunoprecipitation","journal":"Genes & development","confidence":"High","confidence_rationale":"Tier 1-2 / Strong — multiple orthogonal methods (KO, separation-of-function mutations, fusion rescue, ChIP, chromatin interaction mapping, co-IP) in a single rigorous study","pmids":["34244292"],"is_preprint":false},{"year":2021,"finding":"SATB2 is required to preserve LGR5+ colonic stem cell identity; Satb2 loss in adult mice converts colonic stem cells into ileal-like stem cells. SATB2 maintains colonic identity in part by modulating enhancer binding of the intestinal transcription factors CDX2 and HNF4A.","method":"Conditional Satb2 knockout in adult mouse colon (inducible Cre), human colonic organoids with SATB2 loss, ChIP/enhancer accessibility analysis (CDX2, HNF4A)","journal":"Cell stem cell","confidence":"High","confidence_rationale":"Tier 2 / Strong — in vivo CKO plus human organoid validation plus mechanistic chromatin analysis, single study with multiple orthogonal methods","pmids":["34582804"],"is_preprint":false},{"year":2022,"finding":"SATB2 binding within chromatin loops and near topological anchor points in myoblasts influences loop and sub-TAD domain formation; caspase 7-mediated cleavage and removal of SATB2 is required to initiate chromatin remodeling and myogenic differentiation. SATB2 deletion accelerates differentiation, while its presence maintains a chromatin environment that represses differentiation-inducing factors.","method":"SATB2 CRISPR deletion in myoblasts, genome-wide chromatin interaction mapping (Hi-C/ChIP), caspase 7 cleavage assays, differentiation assays","journal":"Cells","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — genome-wide chromatin mapping plus functional KO and caspase cleavage, single lab","pmids":["35326417"],"is_preprint":false},{"year":2024,"finding":"SATB2 affects chromatin looping between enhancers and promoters of neuronal-activity-regulated genes in cortical neurons, alters A/B compartments, topologically associating domains, and frequently interacting regions; it operates both independently and in cooperation with CTCF to organize the 3D chromatin landscape of pyramidal neurons for cognitive processes.","method":"Mapping chromatin interactions (Hi-C/HiChIP) and accessibility (ATAC-seq) in control vs. SATB2-deficient cortical neurons, ChIP-seq","journal":"Molecular cell","confidence":"High","confidence_rationale":"Tier 1-2 / Strong — genome-wide 3D chromatin and accessibility mapping in KO vs. control with multiple orthogonal methods in a single study","pmids":["38244545"],"is_preprint":false},{"year":2024,"finding":"MTA2 forms a chromatin complex with SATB2 that co-occupies DNA with HNF4A on colonic chromatin; MTA2 loss leads to HNF4A release from colonic chromatin and accumulation on small intestinal chromatin. SATB2 similarly restrains colonic-to-small-intestinal plasticity through an HNF4A-dependent mechanism, defining a model in which broadly expressed TFs are retained on tissue-specific enhancers to maintain cell identity.","method":"Proteomics (SATB2 interactome), CRISPR-Cas9 screen, conditional MTA2 and SATB2 knockout in adult mouse colon, ChIP-seq (MTA2, HNF4A, SATB2), lipid uptake functional assays","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 1-2 / Strong — proteomics interactome identification plus CRISPR screen plus ChIP-seq plus in vivo KO, multiple orthogonal methods in one study","pmids":["38678016"],"is_preprint":false},{"year":2019,"finding":"Satb2 is required for specifying retrosplenial cortex (Rsp) identity; it represses Nr4a2 transcription in Rsp neurons, and misexpression of Nr4a2 together with Ctip2 induces subiculum-specific gene expression in wild-type Rsp. Simultaneous knockdown of Nr4a2 and Ctip2 in Satb2-mutant Rsp cells prevents their fate transition.","method":"Conditional Satb2 knockout (CKO) in mouse cortex, in utero electroporation for cell-autonomous inactivation, gene expression analysis, rescue by Nr4a2+Ctip2 knockdown","journal":"Cell death and differentiation","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — in vivo CKO plus genetic epistasis rescue experiments, single lab","pmids":["31666685"],"is_preprint":false},{"year":2017,"finding":"Estrogen receptor β (ERβ) binds to an estrogen response element (ERE) at -488 of the SATB2 gene promoter to mediate estrogen-induced upregulation of SATB2 expression in bone marrow stromal cells, linking estrogen signaling to SATB2-dependent stemness and osteogenic differentiation.","method":"ERβ/ERα inhibitor experiments, ChIP (ERβ binding to SATB2 promoter ERE), SATB2 overexpression rescue in OVX-BMSCs, in vivo OVX rat model","journal":"Journal of cellular physiology","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP demonstrating direct promoter binding plus functional rescue, single lab","pmids":["29030963"],"is_preprint":false},{"year":2017,"finding":"TNF-α suppresses SATB2 expression through NF-κB directly binding to the SATB2 promoter; additionally, TNF-α activates ERK1/2 (whose inhibition abrogates SATB2 suppression) and depresses Smad1/5/8 signaling, all contributing to inhibition of osteoblast differentiation.","method":"ChIP (NF-κB binding to SATB2 promoter), ERK1/2 inhibitor (U0126), signaling pathway analysis, C2C12 osteoblast differentiation assays","journal":"Oncotarget","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — direct ChIP evidence plus pharmacological pathway dissection, single lab","pmids":["29435145"],"is_preprint":false},{"year":2019,"finding":"SATB2 directly binds to the SLC26A3 promoter (a Cl-/HCO3- exchanger) to regulate its expression, controlling intestinal luminal environment and gut flora homeostasis; intestinal epithelial-specific Satb2 knockout mice develop more severe colitis.","method":"ChIP and luciferase reporter assay (SATB2 at SLC26A3 promoter), intestinal epithelial-specific Satb2 CKO mice, RNA-seq, microbiome 16S rDNA sequencing","journal":"Journal of Crohn's & colitis","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP plus reporter assay plus in vivo CKO, single lab","pmids":["34019628"],"is_preprint":false},{"year":2017,"finding":"SATB2 suppresses c-Myc expression in colorectal cancer cells through inactivation of ERK5; conversely SATB1 promotes c-Myc expression. SATB1 and SATB2 are negatively correlated in colorectal cancer tissues and exert opposing functions in colorectal tumorigenesis.","method":"Ectopic SATB2 expression in colorectal cancer cells, ERK5 activity assays, c-Myc rescue experiments, SATB1 knockdown, in vivo xenograft tumor assays","journal":"Oncotarget","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — multiple functional experiments (OE, rescue, KD) with pathway placement, single lab","pmids":["26701851"],"is_preprint":false},{"year":2019,"finding":"SATB2 regulates hippocampal long-term memory and adult-stage cortical neurons' interactome; the adult SATB2 protein complex is enriched for proteins that stabilize chromatin loops and shows a developmental shift from transcriptional repression (neonatal) toward organization of chromosomal superstructure (adult).","method":"SATB2 protein interactome isolation (immunoprecipitation-MS) at neonatal and adult stages, gene expression analysis (RNA-seq), GWAS enrichment analysis","journal":"PLoS genetics","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — proteomics interactome at two developmental stages, single lab","pmids":["30726206"],"is_preprint":false},{"year":2019,"finding":"Ezh2-mediated deposition of the repressive histone mark H3K27me3 on the SATB2 gene suppresses SATB2 expression in osteogenic progenitors from obese rat dams; Ezh2 knockdown increases and Ezh2 overexpression decreases SATB2 expression, linking maternal obesity to impaired fetal osteoblast differentiation via epigenetic silencing of SATB2.","method":"ChIP-seq (H3K27me3 at SATB2 locus), Ezh2 knockdown and overexpression in embryonic osteogenic cells, in vivo Ezh2 CKO mice (Osx-Cre)","journal":"FASEB journal","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP-seq plus genetic KO and KD, single lab","pmids":["31908011"],"is_preprint":false},{"year":2021,"finding":"SATB2 coordinates with NRF2 to drive enhancer-promoter interactions, amplifying NRF2 target gene transcriptional activity in renal cell carcinoma; SATB2 recruits SWI/SNF complex subunits BRD7 and BRG1 to sustain DNA accessibility, and its expression is activated by YAP/TEAD4.","method":"ChIP-seq, ATAC-seq, co-immunoprecipitation (SATB2-SWI/SNF), transcriptome analysis, patient-derived xenograft and organoid experiments with SATB2/BRD7 targeting","journal":"Cancer research","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP-seq plus ATAC-seq plus co-IP, single lab","pmids":["36598364"],"is_preprint":false},{"year":2021,"finding":"SATB2 drives melanoma invasion by binding and activating neural crest regulators including pdgfab and snai2, inducing invadopodia formation; the transcriptional program induced by SATB2 overlaps with drug-resistant melanoma states and drives resistance to Vemurafenib in vivo.","method":"Overexpression screen in zebrafish mitfa:BRAFV600E;tp53-/- model, ChIP (SATB2 binding at pdgfab/snai2), in vivo tumor invasion assays, Vemurafenib resistance assays","journal":"eLife","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — in vivo overexpression screen plus ChIP plus functional drug resistance assays, single lab","pmids":["33527896"],"is_preprint":false},{"year":2021,"finding":"A frameshift mutation in SATB2 causes the mutant protein to fail nuclear translocation and remain cytoplasmic, preventing activation of Wnt/β-catenin signaling; wild-type SATB2 translocates to the nucleus and upregulates active β-catenin. Mutant SATB2 also upregulates DKK1 and histone demethylase JHDM1D to further inhibit Wnt/β-catenin signaling.","method":"Fluorescent immunocytochemistry (nuclear vs. cytoplasmic localization of mutant vs. WT SATB2), western blot (β-catenin), Wnt inhibitor (XAV939) rescue, gene expression analysis in human dental pulp stem cells","journal":"Stem cell research & therapy","confidence":"Medium","confidence_rationale":"Tier 3 / Moderate — localization assay plus functional pathway rescue with pharmacological inhibitor, single lab","pmids":["34863303"],"is_preprint":false},{"year":2012,"finding":"Satb1 and Satb2 are dispensable for X chromosome inactivation in mice; female Satb1-/-Satb2-/- fibroblasts contain proper Barr bodies with normal Xist RNA coating and H3K27me3 modifications, and do not show upregulation of X-linked genes.","method":"FISH (Xist RNA), immunohistochemistry (H3K27me3), double knockout (Satb1-/-Satb2-/-) mouse-derived fibroblasts, gene expression analysis","journal":"Developmental cell","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — negative result established by multiple orthogonal methods (FISH, IHC, expression) in double-KO cells","pmids":["23079603"],"is_preprint":false}],"current_model":"SATB2 is a nuclear matrix attachment region (MAR)-binding chromatin organizer that binds AT-rich DNA sequences through its CUT and homeodomain domains to regulate higher-order chromatin architecture (loop formation, TAD structure, A/B compartment organization) and gene expression; it represses target loci (e.g., Ctip2, Nr4a2, Hoxa2) by recruiting NuRD/HDAC complexes, activates target loci (e.g., FOXM1) by recruiting CBP/p300 acetyltransferases, and cooperates with or antagonizes transcription factors including Runx2, ATF4, ΔNp63α, HNF4A, NRF2, and CDX2 to determine cell identity in osteoblasts, upper-layer cortical neurons, colonic epithelium, and other lineages; its activity is post-translationally regulated by ZFP451-mediated SUMO2 modification (driving ES cell differentiation) and caspase 7-mediated cleavage (permitting myogenic differentiation), and its expression is controlled by upstream signals including BMP/Smad, ERβ, and NF-κB acting directly at the SATB2 promoter."},"narrative":{"mechanistic_narrative":"SATB2 is a nuclear matrix-associated chromatin organizer that binds AT-rich DNA through CUT and homeodomain regions and shapes higher-order genome architecture — enhancer-promoter looping, sub-TAD/TAD domains, and A/B compartment organization — to enforce cell-type identity across multiple lineages [PMID:28151491, PMID:38244545, PMID:34244292]. Domain mutations in CUT1 increase, and CUT2/HOX-region mutations decrease, the protein's nuclear mobility, defining these domains as mediators of chromatin/matrix association [PMID:28151491]. SATB2 acts as a context-dependent transcriptional switch: it represses target loci by engaging the NuRD/HDAC machinery (HDAC1, MTA2) at AT-rich sites [PMID:18333962], and activates loci such as FOXM1 by recruiting the acetyltransferase CBP to a matrix-attachment region [PMID:33124191]. In the developing neocortex it specifies upper-layer callosal neuron identity by repressing Ctip2 and downstream axon-guidance genes, and in the adult forebrain it couples synaptic activity to long-term memory by reorganizing the 3D chromatin landscape of activity-regulated genes, acting both independently and with CTCF [PMID:18255031, PMID:18255030, PMID:24739528, PMID:27897969, PMID:38244545]. The same architectural logic maintains identity elsewhere: SATB2 preserves LGR5+ colonic stem-cell fate by retaining CDX2/HNF4A on tissue-specific enhancers through an MTA2-containing complex [PMID:34582804, PMID:38678016], cooperates with Runx2 and ATF4 to drive osteoblast differentiation [PMID:16751105], and antagonizes SATB1 to sustain pluripotency-associated Nanog expression in ES cells [PMID:19933152]. SATB2 activity is post-translationally gated: ZFP451-mediated SUMO2 modification redirects it to silence pluripotency genes and reorganize chromatin contacts to drive ES-cell differentiation [PMID:34244292], while caspase-7 cleavage removes SATB2 to release a chromatin block on myogenic differentiation [PMID:35326417]. Its expression is set by upstream signals acting at the SATB2 promoter, including ERβ-mediated estrogen induction, NF-κB/TNF-α suppression, and Ezh2-deposited H3K27me3 silencing [PMID:29030963, PMID:29435145, PMID:31908011]. Dysregulated SATB2 contributes to multiple cancers, promoting glioblastoma and renal carcinoma proliferation, melanoma invasion, and leukemic differentiation arrest [PMID:33124191, PMID:36598364, PMID:33527896, PMID:30610188].","teleology":[{"year":2006,"claim":"Established SATB2 as a transcriptional cofactor that physically partners with lineage transcription factors, answering how it contributes to osteoblast specification.","evidence":"Co-IP, luciferase transactivation, and double-heterozygous mouse genetic epistasis with Runx2/ATF4","pmids":["16751105"],"confidence":"High","gaps":["Did not resolve whether SATB2 acts via chromatin architecture or direct co-activation","Repression of Hoxa2 mechanism not detailed"]},{"year":2008,"claim":"Defined SATB2's role in cortical neuron identity by showing it binds and represses Ctip2 to specify callosal versus corticospinal fate.","evidence":"ChIP at Ctip2 locus, ectopic expression, and Satb2 knockout mice with axonal/expression readouts (two concurrent papers)","pmids":["18255031","18255030"],"confidence":"High","gaps":["Did not identify the repressive cofactor machinery","Downstream effector genes not yet mapped"]},{"year":2008,"claim":"Identified the molecular basis of SATB2-mediated repression as recruitment of the NuRD/HDAC complex.","evidence":"In vitro DNA-affinity binding, ChIP, and TSA pharmacological rescue showing HDAC1/MTA2 interaction in cortical neurons","pmids":["18333962"],"confidence":"Medium","gaps":["Single lab","Stoichiometry and recruitment mechanism to specific loci unresolved"]},{"year":2009,"claim":"Revealed an antagonistic SATB1/SATB2 relationship at the Nanog locus governing ES-cell pluripotency.","evidence":"ChIP, single and double Satb1/Satb2 knockout ES cells, forced expression, cell-fusion reprogramming","pmids":["19933152"],"confidence":"High","gaps":["Mechanism of opposing effects not resolved","Did not address post-translational control"]},{"year":2017,"claim":"Mapped SATB2 domain functions to chromatin/matrix association via disease-variant mobility, linking structure to architectural role.","evidence":"FRAP of fluorescently-tagged mutant SATB2 in patient fibroblasts plus western blot","pmids":["28151491"],"confidence":"Medium","gaps":["Mobility changes not linked to specific target-gene outcomes","Single lab"]},{"year":2020,"claim":"Showed SATB2 can also activate transcription, recruiting CBP to a MAR to drive FOXM1 and tumor proliferation, establishing its bidirectional regulatory capacity.","evidence":"ChIP at FOXM1 MAR, SATB2-CBP co-IP, shRNA, and C646 pharmacological inhibition in glioblastoma models","pmids":["33124191"],"confidence":"Medium","gaps":["What determines activator vs repressor mode at a given locus unknown","Single lab"]},{"year":2020,"claim":"Connected SATB2 to nuclear envelope remodeling, linking activity-dependent nuclear shape plasticity to gene regulation in neurons.","evidence":"SATB2-LEMD2 co-IP, in vivo nuclear shape measurement, LEMD2 depletion with expression readouts","pmids":["33319920"],"confidence":"Medium","gaps":["Direct ESCRT-III/VPS4 interaction interface unresolved","Single lab"]},{"year":2021,"claim":"Established SUMO2 modification as a post-translational switch redirecting SATB2 to drive ES-cell differentiation through altered chromatin interactions.","evidence":"Conditional KO, SUMO-acceptor point mutants, ZFP451 KO, SUMO-SATB2 fusion rescue, ChIP, Hi-C, co-IP","pmids":["34244292"],"confidence":"High","gaps":["Triggers of ZFP451 SUMOylation in vivo unclear","Generality to other lineages untested in this study"]},{"year":2021,"claim":"Defined SATB2 as a guardian of colonic stem-cell identity acting through CDX2/HNF4A enhancer retention.","evidence":"Inducible colonic Satb2 CKO, human organoids, and CDX2/HNF4A enhancer/ChIP analysis","pmids":["34582804"],"confidence":"High","gaps":["Did not yet define the full SATB2 interactome retaining HNF4A","Reversibility kinetics unresolved"]},{"year":2022,"claim":"Showed caspase-7 cleavage removes SATB2 to permit chromatin remodeling and myogenic differentiation, a second post-translational control point.","evidence":"CRISPR deletion in myoblasts, genome-wide chromatin interaction mapping, caspase-7 cleavage and differentiation assays","pmids":["35326417"],"confidence":"Medium","gaps":["Caspase-7 cleavage site and upstream activation signal not defined","Single lab"]},{"year":2024,"claim":"Provided genome-scale evidence that SATB2 organizes 3D chromatin (loops, TADs, compartments) of neuronal activity genes, acting with and independently of CTCF for cognition.","evidence":"Hi-C/HiChIP, ATAC-seq, and ChIP-seq in control vs SATB2-deficient cortical neurons","pmids":["38244545"],"confidence":"High","gaps":["Determinants of CTCF-dependent vs independent action unresolved","Direct loop-extrusion role not established"]},{"year":2024,"claim":"Resolved the mechanism of colonic identity maintenance: an MTA2-SATB2 complex retains broadly expressed HNF4A on tissue-specific enhancers.","evidence":"SATB2 interactome proteomics, CRISPR screen, MTA2/SATB2 colonic CKO, ChIP-seq, lipid-uptake assays","pmids":["38678016"],"confidence":"High","gaps":["How the complex selects colonic over intestinal enhancers unclear","Relationship to architectural looping not integrated"]},{"year":null,"claim":"What molecular features determine whether SATB2 acts as an activator (CBP) or repressor (NuRD/HDAC) at a given locus, and how its post-translational states are coordinated in vivo, remains unresolved.","evidence":"","pmids":[],"confidence":"Medium","gaps":["No unified model linking SUMOylation, cleavage, and cofactor choice","Structural basis of MAR recognition not solved in the corpus","Mechanism switching activator/repressor mode locus-by-locus unknown"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0003677","term_label":"DNA binding","supporting_discovery_ids":[0,2,7,9]},{"term_id":"GO:0140110","term_label":"transcription regulator activity","supporting_discovery_ids":[0,1,9,16]},{"term_id":"GO:0060090","term_label":"molecular adaptor activity","supporting_discovery_ids":[2,9,15,23]}],"localization":[{"term_id":"GO:0005634","term_label":"nucleus","supporting_discovery_ids":[7,25]},{"term_id":"GO:0000228","term_label":"nuclear chromosome","supporting_discovery_ids":[11,13,14]},{"term_id":"GO:0005635","term_label":"nuclear envelope","supporting_discovery_ids":[10]}],"pathway":[{"term_id":"R-HSA-4839726","term_label":"Chromatin organization","supporting_discovery_ids":[2,9,11,14]},{"term_id":"R-HSA-74160","term_label":"Gene expression (Transcription)","supporting_discovery_ids":[0,1,9,16]},{"term_id":"R-HSA-1266738","term_label":"Developmental Biology","supporting_discovery_ids":[0,1,12,16]}],"complexes":["NuRD/HDAC complex","LSD1/CoREST complex","SWI/SNF (BRD7/BRG1)"],"partners":["RUNX2","ATF4","HDAC1","MTA2","CBP","HNF4A","LEMD2","ZFP451"],"other_free_text":[]}},"prefetch_data":{"uniprot":{"accession":"Q9UPW6","full_name":"DNA-binding protein SATB2","aliases":["Special AT-rich sequence-binding protein 2"],"length_aa":733,"mass_kda":82.6,"function":"Binds to DNA, at nuclear matrix- or scaffold-associated regions. Thought to recognize the sugar-phosphate structure of double-stranded DNA. Transcription factor controlling nuclear gene expression, by binding to matrix attachment regions (MARs) of DNA and inducing a local chromatin-loop remodeling. Acts as a docking site for several chromatin remodeling enzymes and also by recruiting corepressors (HDACs) or coactivators (HATs) directly to promoters and enhancers. Required for the initiation of the upper-layer neurons (UL1) specific genetic program and for the inactivation of deep-layer neurons (DL) and UL2 specific genes, probably by modulating BCL11B expression. Repressor of Ctip2 and regulatory determinant of corticocortical connections in the developing cerebral cortex. May play an important role in palate formation. Acts as a molecular node in a transcriptional network regulating skeletal development and osteoblast differentiation","subcellular_location":"Nucleus matrix","url":"https://www.uniprot.org/uniprotkb/Q9UPW6/entry"},"depmap":{"release":"DepMap","has_data":true,"is_common_essential":false,"resolved_as":"","url":"https://depmap.org/portal/gene/SATB2","classification":"Not Classified","n_dependent_lines":22,"n_total_lines":1208,"dependency_fraction":0.018211920529801324},"opencell":{"profiled":false,"resolved_as":"","ensg_id":"","cell_line_id":"","localizations":[],"interactors":[{"gene":"HDAC1","stoichiometry":0.2},{"gene":"HDAC2","stoichiometry":0.2},{"gene":"SSRP1","stoichiometry":0.2}],"url":"https://opencell.sf.czbiohub.org/search/SATB2","total_profiled":1310},"omim":[{"mim_id":"621283","title":"COILED-COIL DOMAIN-CONTAINING PROTEIN 85C; CCDC85C","url":"https://www.omim.org/entry/621283"},{"mim_id":"613857","title":"OROFACIAL CLEFT 13; OFC13","url":"https://www.omim.org/entry/613857"},{"mim_id":"612313","title":"GLASS SYNDROME; GLASS","url":"https://www.omim.org/entry/612313"},{"mim_id":"612123","title":"PATATIN-LIKE PHOSPHOLIPASE DOMAIN-CONTAINING PROTEIN 8; PNPLA8","url":"https://www.omim.org/entry/612123"},{"mim_id":"608148","title":"SPECIAL AT-RICH SEQUENCE-BINDING PROTEIN 2; SATB2","url":"https://www.omim.org/entry/608148"}],"hpa":{"profiled":true,"resolved_as":"","reliability":"Supported","locations":[{"location":"Nucleoplasm","reliability":"Supported"},{"location":"Centrosome","reliability":"Additional"},{"location":"Basal body","reliability":"Additional"},{"location":"Cytosol","reliability":"Additional"}],"tissue_specificity":"Group enriched","tissue_distribution":"Detected in many","driving_tissues":[{"tissue":"brain","ntpm":13.1},{"tissue":"intestine","ntpm":30.8}],"url":"https://www.proteinatlas.org/search/SATB2"},"hgnc":{"alias_symbol":["KIAA1034","FLJ21474"],"prev_symbol":[]},"alphafold":{"accession":"Q9UPW6","domains":[{"cath_id":"3.10.20.710","chopping":"57-160","consensus_level":"medium","plddt":83.8419,"start":57,"end":160},{"cath_id":"1.10.260.70","chopping":"162-238","consensus_level":"medium","plddt":80.9271,"start":162,"end":238},{"cath_id":"1.10.260.40","chopping":"362-439","consensus_level":"high","plddt":90.4217,"start":362,"end":439},{"cath_id":"1.10.260.40","chopping":"485-566","consensus_level":"high","plddt":89.9821,"start":485,"end":566},{"cath_id":"1.10.10.60","chopping":"622-680","consensus_level":"high","plddt":85.9446,"start":622,"end":680}],"viewer_url":"https://alphafold.ebi.ac.uk/entry/Q9UPW6","model_url":"https://alphafold.ebi.ac.uk/files/AF-Q9UPW6-F1-model_v6.cif","pae_url":"https://alphafold.ebi.ac.uk/files/AF-Q9UPW6-F1-predicted_aligned_error_v6.png","plddt_mean":66.06},"mouse_models":{"mgi_url":"https://www.informatics.jax.org/marker/summary?nomen=SATB2","jax_strain_url":"https://www.jax.org/strain/search?query=SATB2"},"sequence":{"accession":"Q9UPW6","fasta_url":"https://rest.uniprot.org/uniprotkb/Q9UPW6.fasta","uniprot_url":"https://www.uniprot.org/uniprotkb/Q9UPW6/entry","alphafold_viewer_url":"https://alphafold.ebi.ac.uk/entry/Q9UPW6"}},"corpus_meta":[{"pmid":"18255031","id":"PMC_18255031","title":"Satb2 is a postmitotic determinant for upper-layer neuron specification in the neocortex.","date":"2008","source":"Neuron","url":"https://pubmed.ncbi.nlm.nih.gov/18255031","citation_count":537,"is_preprint":false},{"pmid":"18255030","id":"PMC_18255030","title":"Satb2 regulates callosal projection neuron identity in the developing cerebral cortex.","date":"2008","source":"Neuron","url":"https://pubmed.ncbi.nlm.nih.gov/18255030","citation_count":533,"is_preprint":false},{"pmid":"16751105","id":"PMC_16751105","title":"SATB2 is a multifunctional determinant of craniofacial patterning and osteoblast differentiation.","date":"2006","source":"Cell","url":"https://pubmed.ncbi.nlm.nih.gov/16751105","citation_count":433,"is_preprint":false},{"pmid":"12915443","id":"PMC_12915443","title":"Identification of SATB2 as the cleft palate gene on 2q32-q33.","date":"2003","source":"Human molecular genetics","url":"https://pubmed.ncbi.nlm.nih.gov/12915443","citation_count":226,"is_preprint":false},{"pmid":"31492160","id":"PMC_31492160","title":"LncRNA SATB2-AS1 inhibits tumor metastasis and affects the tumor immune cell microenvironment in colorectal cancer by regulating SATB2.","date":"2019","source":"Molecular cancer","url":"https://pubmed.ncbi.nlm.nih.gov/31492160","citation_count":214,"is_preprint":false},{"pmid":"20980827","id":"PMC_20980827","title":"The role of miR-31 and its target gene SATB2 in cancer-associated fibroblasts.","date":"2010","source":"Cell cycle (Georgetown, Tex.)","url":"https://pubmed.ncbi.nlm.nih.gov/20980827","citation_count":137,"is_preprint":false},{"pmid":"18333962","id":"PMC_18333962","title":"SATB2 interacts with chromatin-remodeling molecules in differentiating cortical neurons.","date":"2008","source":"The European journal of neuroscience","url":"https://pubmed.ncbi.nlm.nih.gov/18333962","citation_count":125,"is_preprint":false},{"pmid":"19933152","id":"PMC_19933152","title":"Satb1 and Satb2 regulate embryonic stem cell differentiation and Nanog expression.","date":"2009","source":"Genes & development","url":"https://pubmed.ncbi.nlm.nih.gov/19933152","citation_count":116,"is_preprint":false},{"pmid":"24437456","id":"PMC_24437456","title":"Cadherin-17 and SATB2 are sensitive and specific immunomarkers for medullary carcinoma of the large intestine.","date":"2014","source":"Archives of pathology & laboratory medicine","url":"https://pubmed.ncbi.nlm.nih.gov/24437456","citation_count":99,"is_preprint":false},{"pmid":"26551622","id":"PMC_26551622","title":"SATB2 Expression Distinguishes Ovarian Metastases of Colorectal and Appendiceal Origin From Primary Ovarian Tumors of Mucinous or Endometrioid Type.","date":"2016","source":"The American journal of surgical pathology","url":"https://pubmed.ncbi.nlm.nih.gov/26551622","citation_count":95,"is_preprint":false},{"pmid":"19642980","id":"PMC_19642980","title":"The mRNA expression of SATB1 and SATB2 in human breast cancer.","date":"2009","source":"Cancer cell international","url":"https://pubmed.ncbi.nlm.nih.gov/19642980","citation_count":94,"is_preprint":false},{"pmid":"27774744","id":"PMC_27774744","title":"SATB2-associated syndrome: Mechanisms, phenotype, and practical recommendations.","date":"2016","source":"American journal of medical genetics. Part A","url":"https://pubmed.ncbi.nlm.nih.gov/27774744","citation_count":93,"is_preprint":false},{"pmid":"21385070","id":"PMC_21385070","title":"Roles of SATB2 in osteogenic differentiation and bone regeneration.","date":"2011","source":"Tissue engineering. Part A","url":"https://pubmed.ncbi.nlm.nih.gov/21385070","citation_count":89,"is_preprint":false},{"pmid":"30858153","id":"PMC_30858153","title":"SATB2-AS1 Suppresses Colorectal Carcinoma Aggressiveness by Inhibiting SATB2-Dependent Snail Transcription and Epithelial-Mesenchymal Transition.","date":"2019","source":"Cancer research","url":"https://pubmed.ncbi.nlm.nih.gov/30858153","citation_count":79,"is_preprint":false},{"pmid":"30241943","id":"PMC_30241943","title":"Circ-SATB2 upregulates STIM1 expression and regulates vascular smooth muscle cell proliferation and differentiation through miR-939.","date":"2018","source":"Biochemical and biophysical research communications","url":"https://pubmed.ncbi.nlm.nih.gov/30241943","citation_count":78,"is_preprint":false},{"pmid":"24301056","id":"PMC_24301056","title":"Further delineation of the SATB2 phenotype.","date":"2013","source":"European journal of human genetics : EJHG","url":"https://pubmed.ncbi.nlm.nih.gov/24301056","citation_count":78,"is_preprint":false},{"pmid":"27897969","id":"PMC_27897969","title":"Satb2 determines miRNA expression and long-term memory in the adult central nervous system.","date":"2016","source":"eLife","url":"https://pubmed.ncbi.nlm.nih.gov/27897969","citation_count":71,"is_preprint":false},{"pmid":"28968158","id":"PMC_28968158","title":"SATB2 as an Immunohistochemical Marker for Colorectal Adenocarcinoma: A Concise Review of Benefits and Pitfalls.","date":"2017","source":"Archives of pathology & laboratory medicine","url":"https://pubmed.ncbi.nlm.nih.gov/28968158","citation_count":66,"is_preprint":false},{"pmid":"24411565","id":"PMC_24411565","title":"The role of SATB2 in skeletogenesis and human disease.","date":"2013","source":"Cytokine & growth factor reviews","url":"https://pubmed.ncbi.nlm.nih.gov/24411565","citation_count":60,"is_preprint":false},{"pmid":"24739528","id":"PMC_24739528","title":"Unc5C and DCC act downstream of Ctip2 and Satb2 and contribute to corpus callosum formation.","date":"2014","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/24739528","citation_count":59,"is_preprint":false},{"pmid":"29030963","id":"PMC_29030963","title":"Estrogen regulates stemness and senescence of bone marrow stromal cells to prevent osteoporosis via ERβ-SATB2 pathway.","date":"2017","source":"Journal of cellular physiology","url":"https://pubmed.ncbi.nlm.nih.gov/29030963","citation_count":59,"is_preprint":false},{"pmid":"23386513","id":"PMC_23386513","title":"Expression of transcription factor Satb2 in adult mouse brain.","date":"2013","source":"Anatomical record (Hoboken, N.J. : 2007)","url":"https://pubmed.ncbi.nlm.nih.gov/23386513","citation_count":56,"is_preprint":false},{"pmid":"34582804","id":"PMC_34582804","title":"SATB2 preserves colon stem cell identity and mediates ileum-colon conversion via enhancer remodeling.","date":"2021","source":"Cell stem cell","url":"https://pubmed.ncbi.nlm.nih.gov/34582804","citation_count":54,"is_preprint":false},{"pmid":"31021519","id":"PMC_31021519","title":"Mutation update for the SATB2 gene.","date":"2019","source":"Human mutation","url":"https://pubmed.ncbi.nlm.nih.gov/31021519","citation_count":52,"is_preprint":false},{"pmid":"20829881","id":"PMC_20829881","title":"SATB2 augments ΔNp63α in head and neck squamous cell carcinoma.","date":"2010","source":"EMBO reports","url":"https://pubmed.ncbi.nlm.nih.gov/20829881","citation_count":51,"is_preprint":false},{"pmid":"33124191","id":"PMC_33124191","title":"SATB2 drives glioblastoma growth by recruiting CBP to promote FOXM1 expression in glioma stem cells.","date":"2020","source":"EMBO molecular medicine","url":"https://pubmed.ncbi.nlm.nih.gov/33124191","citation_count":50,"is_preprint":false},{"pmid":"28151491","id":"PMC_28151491","title":"Clinical and molecular consequences of disease-associated de novo mutations in SATB2.","date":"2017","source":"Genetics in medicine : official journal of the American College of Medical Genetics","url":"https://pubmed.ncbi.nlm.nih.gov/28151491","citation_count":50,"is_preprint":false},{"pmid":"23016939","id":"PMC_23016939","title":"Satb2, modularity, and the evolvability of the vertebrate jaw.","date":"2011","source":"Evolution & development","url":"https://pubmed.ncbi.nlm.nih.gov/23016939","citation_count":49,"is_preprint":false},{"pmid":"25888635","id":"PMC_25888635","title":"miR-211 suppresses hepatocellular carcinoma by downregulating SATB2.","date":"2015","source":"Oncotarget","url":"https://pubmed.ncbi.nlm.nih.gov/25888635","citation_count":49,"is_preprint":false},{"pmid":"25220418","id":"PMC_25220418","title":"SATB2 enhances migration and invasion in osteosarcoma by regulating genes involved in cytoskeletal organization.","date":"2014","source":"Oncogene","url":"https://pubmed.ncbi.nlm.nih.gov/25220418","citation_count":46,"is_preprint":false},{"pmid":"33431851","id":"PMC_33431851","title":"Satb2 neurons in the parabrachial nucleus mediate taste perception.","date":"2021","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/33431851","citation_count":45,"is_preprint":false},{"pmid":"31067452","id":"PMC_31067452","title":"SatB2-Expressing Neurons in the Parabrachial Nucleus Encode Sweet Taste.","date":"2019","source":"Cell reports","url":"https://pubmed.ncbi.nlm.nih.gov/31067452","citation_count":45,"is_preprint":false},{"pmid":"28887549","id":"PMC_28887549","title":"SATB2/β-catenin/TCF-LEF pathway induces cellular transformation by generating cancer stem cells in colorectal cancer.","date":"2017","source":"Scientific reports","url":"https://pubmed.ncbi.nlm.nih.gov/28887549","citation_count":44,"is_preprint":false},{"pmid":"32885593","id":"PMC_32885593","title":"SATB2 is a novel biomarker and therapeutic target for cancer.","date":"2020","source":"Journal of cellular and molecular medicine","url":"https://pubmed.ncbi.nlm.nih.gov/32885593","citation_count":43,"is_preprint":false},{"pmid":"27262585","id":"PMC_27262585","title":"SATB2 is expressed in Merkel cell carcinoma.","date":"2016","source":"Archives of dermatological research","url":"https://pubmed.ncbi.nlm.nih.gov/27262585","citation_count":41,"is_preprint":false},{"pmid":"27503378","id":"PMC_27503378","title":"MicroRNA-34b/c inhibits aldosterone-induced vascular smooth muscle cell calcification via a SATB2/Runx2 pathway.","date":"2016","source":"Cell and tissue research","url":"https://pubmed.ncbi.nlm.nih.gov/27503378","citation_count":41,"is_preprint":false},{"pmid":"29435145","id":"PMC_29435145","title":"TNF-α inhibits SATB2 expression and osteoblast differentiation through NF-κB and MAPK pathways.","date":"2017","source":"Oncotarget","url":"https://pubmed.ncbi.nlm.nih.gov/29435145","citation_count":39,"is_preprint":false},{"pmid":"35005110","id":"PMC_35005110","title":"SATB2: A versatile transcriptional regulator of craniofacial and skeleton development, neurogenesis and tumorigenesis, and its applications in regenerative medicine.","date":"2020","source":"Genes & diseases","url":"https://pubmed.ncbi.nlm.nih.gov/35005110","citation_count":38,"is_preprint":false},{"pmid":"28139846","id":"PMC_28139846","title":"Genotype and phenotype in 12 additional individuals with SATB2-associated syndrome.","date":"2017","source":"Clinical genetics","url":"https://pubmed.ncbi.nlm.nih.gov/28139846","citation_count":36,"is_preprint":false},{"pmid":"30809123","id":"PMC_30809123","title":"Loss of Satb2 in the Cortex and Hippocampus Leads to Abnormal Behaviors in Mice.","date":"2019","source":"Frontiers in molecular neuroscience","url":"https://pubmed.ncbi.nlm.nih.gov/30809123","citation_count":35,"is_preprint":false},{"pmid":"33621956","id":"PMC_33621956","title":"Silencing of miR-483-5p alleviates postmenopausal osteoporosis by targeting SATB2 and PI3K/AKT pathway.","date":"2021","source":"Aging","url":"https://pubmed.ncbi.nlm.nih.gov/33621956","citation_count":33,"is_preprint":false},{"pmid":"26701851","id":"PMC_26701851","title":"SATB1 and SATB2 play opposing roles in c-Myc expression and progression of colorectal cancer.","date":"2016","source":"Oncotarget","url":"https://pubmed.ncbi.nlm.nih.gov/26701851","citation_count":33,"is_preprint":false},{"pmid":"30040823","id":"PMC_30040823","title":"Genes regulated by SATB2 during neurodevelopment contribute to schizophrenia and educational attainment.","date":"2018","source":"PLoS genetics","url":"https://pubmed.ncbi.nlm.nih.gov/30040823","citation_count":32,"is_preprint":false},{"pmid":"26596517","id":"PMC_26596517","title":"SATB2-associated syndrome presenting with Rett-like phenotypes.","date":"2016","source":"Clinical genetics","url":"https://pubmed.ncbi.nlm.nih.gov/26596517","citation_count":32,"is_preprint":false},{"pmid":"35917493","id":"PMC_35917493","title":"SATB2 Expression in Human Tumors: A Tissue Microarray Study on More Than 15 000 Tumors.","date":"2023","source":"Archives of pathology & laboratory medicine","url":"https://pubmed.ncbi.nlm.nih.gov/35917493","citation_count":30,"is_preprint":false},{"pmid":"29603397","id":"PMC_29603397","title":"Role of miR-31 and SATB2 in arsenic-induced malignant BEAS-2B cell transformation.","date":"2018","source":"Molecular carcinogenesis","url":"https://pubmed.ncbi.nlm.nih.gov/29603397","citation_count":27,"is_preprint":false},{"pmid":"28667416","id":"PMC_28667416","title":"SATB2 suppresses non-small cell lung cancer invasiveness by G9a.","date":"2017","source":"Clinical and experimental medicine","url":"https://pubmed.ncbi.nlm.nih.gov/28667416","citation_count":26,"is_preprint":false},{"pmid":"29131265","id":"PMC_29131265","title":"Metformin reduces SATB2-mediated osteosarcoma stem cell-like phenotype and tumor growth via inhibition of N-cadherin/NF-kB signaling.","date":"2017","source":"European review for medical and pharmacological sciences","url":"https://pubmed.ncbi.nlm.nih.gov/29131265","citation_count":26,"is_preprint":false},{"pmid":"29254139","id":"PMC_29254139","title":"miR-449a inhibits colorectal cancer progression by targeting SATB2.","date":"2016","source":"Oncotarget","url":"https://pubmed.ncbi.nlm.nih.gov/29254139","citation_count":26,"is_preprint":false},{"pmid":"30610188","id":"PMC_30610188","title":"The signaling axis atypical protein kinase C λ/ι-Satb2 mediates leukemic transformation of B-cell progenitors.","date":"2019","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/30610188","citation_count":24,"is_preprint":false},{"pmid":"31728810","id":"PMC_31728810","title":"SATB2 and NGR1: potential upstream regulatory factors in uterine leiomyomas.","date":"2019","source":"Journal of assisted reproduction and genetics","url":"https://pubmed.ncbi.nlm.nih.gov/31728810","citation_count":23,"is_preprint":false},{"pmid":"31666685","id":"PMC_31666685","title":"Satb2 is required for the regionalization of retrosplenial cortex.","date":"2019","source":"Cell death and differentiation","url":"https://pubmed.ncbi.nlm.nih.gov/31666685","citation_count":23,"is_preprint":false},{"pmid":"28167280","id":"PMC_28167280","title":"The miR-599 promotes non-small cell lung cancer cell invasion via SATB2.","date":"2017","source":"Biochemical and biophysical research communications","url":"https://pubmed.ncbi.nlm.nih.gov/28167280","citation_count":23,"is_preprint":false},{"pmid":"31663131","id":"PMC_31663131","title":"MiR-34a inhibits the proliferation, migration, and invasion of oral squamous cell carcinoma by directly targeting SATB2.","date":"2019","source":"Journal of cellular physiology","url":"https://pubmed.ncbi.nlm.nih.gov/31663131","citation_count":23,"is_preprint":false},{"pmid":"31133441","id":"PMC_31133441","title":"Value of SATB2, ISL1, and TTF1 to differentiate rectal from other gastrointestinal and lung well-differentiated neuroendocrine tumors.","date":"2019","source":"Pathology, research and practice","url":"https://pubmed.ncbi.nlm.nih.gov/31133441","citation_count":23,"is_preprint":false},{"pmid":"24666017","id":"PMC_24666017","title":"Lentiviral-mediated expression of SATB2 promotes osteogenic differentiation of bone marrow stromal cells in vitro and in vivo.","date":"2014","source":"European journal of oral sciences","url":"https://pubmed.ncbi.nlm.nih.gov/24666017","citation_count":23,"is_preprint":false},{"pmid":"30916759","id":"PMC_30916759","title":"Deregulation of SATB2 in carcinogenesis with emphasis on miRNA-mediated control.","date":"2019","source":"Carcinogenesis","url":"https://pubmed.ncbi.nlm.nih.gov/30916759","citation_count":22,"is_preprint":false},{"pmid":"23079603","id":"PMC_23079603","title":"Satb1 and Satb2 are dispensable for X chromosome inactivation in mice.","date":"2012","source":"Developmental cell","url":"https://pubmed.ncbi.nlm.nih.gov/23079603","citation_count":22,"is_preprint":false},{"pmid":"33319920","id":"PMC_33319920","title":"SATB2-LEMD2 interaction links nuclear shape plasticity to regulation of cognition-related genes.","date":"2020","source":"The EMBO journal","url":"https://pubmed.ncbi.nlm.nih.gov/33319920","citation_count":22,"is_preprint":false},{"pmid":"28787087","id":"PMC_28787087","title":"Bone health and SATB2-associated syndrome.","date":"2017","source":"Clinical genetics","url":"https://pubmed.ncbi.nlm.nih.gov/28787087","citation_count":20,"is_preprint":false},{"pmid":"23555697","id":"PMC_23555697","title":"Bmp and Shh signaling mediate the expression of satb2 in the pharyngeal arches.","date":"2013","source":"PloS one","url":"https://pubmed.ncbi.nlm.nih.gov/23555697","citation_count":20,"is_preprint":false},{"pmid":"31318711","id":"PMC_31318711","title":"Loss of SATB2 Expression Is a Biomarker of Inflammatory Bowel Disease-associated Colorectal Dysplasia and Adenocarcinoma.","date":"2019","source":"The American journal of surgical pathology","url":"https://pubmed.ncbi.nlm.nih.gov/31318711","citation_count":20,"is_preprint":false},{"pmid":"30710095","id":"PMC_30710095","title":"Colitis-associated colorectal adenocarcinomas are frequently associated with non-intestinal mucin profiles and loss of SATB2 expression.","date":"2019","source":"Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc","url":"https://pubmed.ncbi.nlm.nih.gov/30710095","citation_count":20,"is_preprint":false},{"pmid":"32914850","id":"PMC_32914850","title":"SATB2 in Neoplasms of Lung, Pancreatobiliary, and Gastrointestinal Origins.","date":"2021","source":"American journal of clinical pathology","url":"https://pubmed.ncbi.nlm.nih.gov/32914850","citation_count":19,"is_preprint":false},{"pmid":"36598364","id":"PMC_36598364","title":"YAP-Activated SATB2 Is a Coactivator of NRF2 That Amplifies Antioxidative Capacity and Promotes Tumor Progression in Renal Cell Carcinoma.","date":"2023","source":"Cancer research","url":"https://pubmed.ncbi.nlm.nih.gov/36598364","citation_count":19,"is_preprint":false},{"pmid":"35152538","id":"PMC_35152538","title":"Chronic alcohol exposure induces hepatocyte damage by inducing oxidative stress, SATB2 and stem cell-like characteristics, and activating lipogenesis.","date":"2022","source":"Journal of cellular and molecular medicine","url":"https://pubmed.ncbi.nlm.nih.gov/35152538","citation_count":19,"is_preprint":false},{"pmid":"26508023","id":"PMC_26508023","title":"SATB2 suppresses gastric cancer cell proliferation and migration.","date":"2015","source":"Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine","url":"https://pubmed.ncbi.nlm.nih.gov/26508023","citation_count":18,"is_preprint":false},{"pmid":"31325654","id":"PMC_31325654","title":"Satb2 regulates proliferation and nuclear integrity of pre-osteoblasts.","date":"2019","source":"Bone","url":"https://pubmed.ncbi.nlm.nih.gov/31325654","citation_count":18,"is_preprint":false},{"pmid":"34019628","id":"PMC_34019628","title":"SATB2 Defect Promotes Colitis and Colitis-associated Colorectal Cancer by Impairing Cl-/HCO3- Exchange and Homeostasis of Gut Microbiota.","date":"2021","source":"Journal of Crohn's & colitis","url":"https://pubmed.ncbi.nlm.nih.gov/34019628","citation_count":18,"is_preprint":false},{"pmid":"33660290","id":"PMC_33660290","title":"Special AT-rich sequence-binding protein 2 (Satb2) synergizes with Bmp9 and is essential for osteo/odontogenic differentiation of mouse incisor mesenchymal stem cells.","date":"2021","source":"Cell proliferation","url":"https://pubmed.ncbi.nlm.nih.gov/33660290","citation_count":18,"is_preprint":false},{"pmid":"38244545","id":"PMC_38244545","title":"SATB2 organizes the 3D genome architecture of cognition in cortical neurons.","date":"2024","source":"Molecular cell","url":"https://pubmed.ncbi.nlm.nih.gov/38244545","citation_count":17,"is_preprint":false},{"pmid":"32504285","id":"PMC_32504285","title":"microRNA-4270-5p inhibits cancer cell proliferation and metastasis in hepatocellular carcinoma by targeting SATB2.","date":"2020","source":"Human cell","url":"https://pubmed.ncbi.nlm.nih.gov/32504285","citation_count":17,"is_preprint":false},{"pmid":"31089719","id":"PMC_31089719","title":"Satb2 expression in Foxc1-promoted osteogenic differentiation of MC3T3-E1 cells is negatively regulated by microRNA-103-3p.","date":"2019","source":"Acta biochimica et biophysica Sinica","url":"https://pubmed.ncbi.nlm.nih.gov/31089719","citation_count":17,"is_preprint":false},{"pmid":"34244292","id":"PMC_34244292","title":"ZFP451-mediated SUMOylation of SATB2 drives embryonic stem cell differentiation.","date":"2021","source":"Genes & development","url":"https://pubmed.ncbi.nlm.nih.gov/34244292","citation_count":16,"is_preprint":false},{"pmid":"31908011","id":"PMC_31908011","title":"Maternal regulation of SATB2 in osteo-progeniters impairs skeletal development in offspring.","date":"2019","source":"FASEB journal : official publication of the Federation of American Societies for Experimental Biology","url":"https://pubmed.ncbi.nlm.nih.gov/31908011","citation_count":16,"is_preprint":false},{"pmid":"22570222","id":"PMC_22570222","title":"SATB2 participates in regulation of menadione-induced apoptotic insults to osteoblasts.","date":"2012","source":"Journal of orthopaedic research : official publication of the Orthopaedic Research Society","url":"https://pubmed.ncbi.nlm.nih.gov/22570222","citation_count":16,"is_preprint":false},{"pmid":"35016891","id":"PMC_35016891","title":"SOX9 and SATB2 immunohistochemistry cannot reliably distinguish between osteosarcoma and chondrosarcoma on biopsy material.","date":"2022","source":"Human pathology","url":"https://pubmed.ncbi.nlm.nih.gov/35016891","citation_count":15,"is_preprint":false},{"pmid":"35326417","id":"PMC_35326417","title":"Chromatin Reorganization during Myoblast Differentiation Involves the Caspase-Dependent Removal of SATB2.","date":"2022","source":"Cells","url":"https://pubmed.ncbi.nlm.nih.gov/35326417","citation_count":15,"is_preprint":false},{"pmid":"32566006","id":"PMC_32566006","title":"SATB2 knockdown decreases hypoxia-induced autophagy and stemness in oral squamous cell carcinoma.","date":"2020","source":"Oncology letters","url":"https://pubmed.ncbi.nlm.nih.gov/32566006","citation_count":14,"is_preprint":false},{"pmid":"30575289","id":"PMC_30575289","title":"Patients with SATB2-associated syndrome exhibiting multiple odontomas.","date":"2018","source":"American journal of medical genetics. Part A","url":"https://pubmed.ncbi.nlm.nih.gov/30575289","citation_count":14,"is_preprint":false},{"pmid":"31392730","id":"PMC_31392730","title":"Speech, language, and feeding phenotypes of SATB2-associated syndrome.","date":"2019","source":"Clinical genetics","url":"https://pubmed.ncbi.nlm.nih.gov/31392730","citation_count":14,"is_preprint":false},{"pmid":"30726206","id":"PMC_30726206","title":"Genes encoding SATB2-interacting proteins in adult cerebral cortex contribute to human cognitive ability.","date":"2019","source":"PLoS genetics","url":"https://pubmed.ncbi.nlm.nih.gov/30726206","citation_count":14,"is_preprint":false},{"pmid":"36788065","id":"PMC_36788065","title":"Psammomatoid Ossifying Fibroma Is Defined by SATB2 Rearrangement.","date":"2023","source":"Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc","url":"https://pubmed.ncbi.nlm.nih.gov/36788065","citation_count":13,"is_preprint":false},{"pmid":"34036629","id":"PMC_34036629","title":"Aberrant expression of SATB2, CDX2, CDH17 and CK20 in hepatocellular carcinoma: a pathological, clinical and outcome study.","date":"2021","source":"Histopathology","url":"https://pubmed.ncbi.nlm.nih.gov/34036629","citation_count":13,"is_preprint":false},{"pmid":"34863303","id":"PMC_34863303","title":"A novel mutation of SATB2 inhibits odontogenesis of human dental pulp stem cells through Wnt/β-catenin signaling pathway.","date":"2021","source":"Stem cell research & therapy","url":"https://pubmed.ncbi.nlm.nih.gov/34863303","citation_count":13,"is_preprint":false},{"pmid":"35522392","id":"PMC_35522392","title":"Transcription Factor Expression in Sinonasal Neuroendocrine Neoplasms and Olfactory Neuroblastoma (ONB): Hyams' Grades 1-3 ONBs Expand the Spectrum of SATB2 and GATA3-Positive Neoplasms.","date":"2022","source":"Endocrine pathology","url":"https://pubmed.ncbi.nlm.nih.gov/35522392","citation_count":13,"is_preprint":false},{"pmid":"30648748","id":"PMC_30648748","title":"SATB2-associated syndrome (SAS) and associated dental findings.","date":"2019","source":"Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry","url":"https://pubmed.ncbi.nlm.nih.gov/30648748","citation_count":12,"is_preprint":false},{"pmid":"34019815","id":"PMC_34019815","title":"A eutherian-specific microRNA controls the translation of Satb2 in a model of cortical differentiation.","date":"2021","source":"Stem cell reports","url":"https://pubmed.ncbi.nlm.nih.gov/34019815","citation_count":12,"is_preprint":false},{"pmid":"34090666","id":"PMC_34090666","title":"Melanoma with osseous or chondroid differentiation: a report of eight cases including SATB2 expression and mutation analysis.","date":"2021","source":"Pathology","url":"https://pubmed.ncbi.nlm.nih.gov/34090666","citation_count":12,"is_preprint":false},{"pmid":"32045390","id":"PMC_32045390","title":"CDX2, SATB2, GATA3, TTF1, and PAX8 Immunohistochemistry in Krukenberg Tumors.","date":"2020","source":"International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists","url":"https://pubmed.ncbi.nlm.nih.gov/32045390","citation_count":11,"is_preprint":false},{"pmid":"36351995","id":"PMC_36351995","title":"Loss of SATB2 expression correlates with cytokeratin 7 and PD-L1 tumor cell positivity and aggressiveness in colorectal cancer.","date":"2022","source":"Scientific reports","url":"https://pubmed.ncbi.nlm.nih.gov/36351995","citation_count":11,"is_preprint":false},{"pmid":"33527896","id":"PMC_33527896","title":"SATB2 induction of a neural crest mesenchyme-like program drives melanoma invasion and drug resistance.","date":"2021","source":"eLife","url":"https://pubmed.ncbi.nlm.nih.gov/33527896","citation_count":11,"is_preprint":false},{"pmid":"33894556","id":"PMC_33894556","title":"Immunohistochemical expression and significance of SATB2 protein in colorectal cancer.","date":"2021","source":"Annals of diagnostic pathology","url":"https://pubmed.ncbi.nlm.nih.gov/33894556","citation_count":10,"is_preprint":false},{"pmid":"36517907","id":"PMC_36517907","title":"circ-Iqsec1 induces bone marrow-derived mesenchymal stem cell (BMSC) osteogenic differentiation through the miR-187-3p/Satb2 signaling pathway.","date":"2022","source":"Arthritis research & therapy","url":"https://pubmed.ncbi.nlm.nih.gov/36517907","citation_count":10,"is_preprint":false},{"pmid":"35029777","id":"PMC_35029777","title":"Comprehensive clinicopathologic, molecular, and immunologic characterization of colorectal carcinomas with loss of three intestinal markers, CDX2, SATB2, and KRT20.","date":"2022","source":"Virchows Archiv : an international journal of pathology","url":"https://pubmed.ncbi.nlm.nih.gov/35029777","citation_count":10,"is_preprint":false},{"pmid":"35838081","id":"PMC_35838081","title":"Growth in individuals with SATB2-associated syndrome.","date":"2022","source":"American journal of medical genetics. Part A","url":"https://pubmed.ncbi.nlm.nih.gov/35838081","citation_count":9,"is_preprint":false},{"pmid":"35311957","id":"PMC_35311957","title":"SATB2 Expression in Undifferentiated Pleomorphic Sarcomas of Bone.","date":"2022","source":"American journal of clinical pathology","url":"https://pubmed.ncbi.nlm.nih.gov/35311957","citation_count":9,"is_preprint":false},{"pmid":"35049602","id":"PMC_35049602","title":"SATB2 and MDM2 Immunoexpression and Diagnostic Role in Primary Osteosarcomas of the Jaw.","date":"2021","source":"Dentistry journal","url":"https://pubmed.ncbi.nlm.nih.gov/35049602","citation_count":9,"is_preprint":false},{"pmid":"26780400","id":"PMC_26780400","title":"SATB2 expression increased anchorage-independent growth and cell migration in human bronchial epithelial cells.","date":"2016","source":"Toxicology and applied pharmacology","url":"https://pubmed.ncbi.nlm.nih.gov/26780400","citation_count":9,"is_preprint":false},{"pmid":"38678016","id":"PMC_38678016","title":"A MTA2-SATB2 chromatin complex restrains colonic plasticity toward small intestine by retaining HNF4A at colonic chromatin.","date":"2024","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/38678016","citation_count":8,"is_preprint":false}],"cost":{"stage1":{"model":"claude-sonnet-4-6","input_tokens":51054,"output_tokens":7001,"usd":0.129088,"stage1_stop_reason":"end_turn"},"stage2":{"model":"claude-opus-4-8","input_tokens":16112,"output_tokens":4047,"usd":0.090868,"stage2_stop_reason":"end_turn"},"total_usd":0.219956,"stage1_batch_id":"msgbatch_013LWZZT6MWaqB9qyTSeQBmU","stage2_batch_id":"msgbatch_0194ZzQaTGNpruoNJBbEMbt3","note":"batch pricing = 50% of standard"},"stage1_raw":"```json\n{\n  \"discoveries\": [\n    {\n      \"year\": 2008,\n      \"finding\": \"SATB2 binds directly to regulatory/genomic regions of the Ctip2 locus and induces changes in chromatin structure, thereby repressing Ctip2 expression and acting as a determinant of upper-layer (callosal) versus deep-layer (corticospinal) neuron identity in the developing neocortex.\",\n      \"method\": \"Chromatin immunoprecipitation (ChIP), ectopic expression of SATB2 in neural stem cells, genetic loss-of-function (Satb2 knockout mice) with axonal projection and gene expression readouts\",\n      \"journal\": \"Neuron\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — reciprocal functional experiments (KO + ectopic expression), direct ChIP binding at Ctip2 locus, replicated independently in two concurrent papers (PMID:18255031 and PMID:18255030)\",\n      \"pmids\": [\"18255031\", \"18255030\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2006,\n      \"finding\": \"SATB2 directly interacts with and enhances the transcriptional activity of both Runx2 and ATF4, transcription factors required for osteoblast differentiation; synergy was genetically confirmed by bone formation defects in Satb2/Runx2 and Satb2/Atf4 double-heterozygous mice. SATB2 also directly represses Hoxa2 expression.\",\n      \"method\": \"Co-immunoprecipitation (protein-protein interaction), luciferase transactivation assays, genetic epistasis (double-heterozygous mouse crosses), Satb2-/- mouse phenotypic analysis\",\n      \"journal\": \"Cell\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1-2 / Strong — multiple orthogonal methods (co-IP, reporter assay, in vivo genetic epistasis) in a single rigorous study\",\n      \"pmids\": [\"16751105\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2008,\n      \"finding\": \"SATB2 physically interacts with HDAC1 and MTA2 (members of the NuRD/NURD chromatin-remodeling and histone deacetylase complex) in developing cortical neurons; this interaction is required for its repressor function at AT-rich DNA sites, as HDAC inhibitor TSA reverses SATB2-mediated repression.\",\n      \"method\": \"In vitro DNA-affinity pre-incubation specificity test, chromatin immunoprecipitation (ChIP), TSA pharmacological inhibition, semi-quantitative ChIP in knockout vs. wild-type cortices\",\n      \"journal\": \"The European journal of neuroscience\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — multiple orthogonal methods (in vitro binding, ChIP, pharmacological rescue) in a single lab\",\n      \"pmids\": [\"18333962\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"SATB2 and SATB1 both bind the Nanog locus in vivo in embryonic stem cells and have opposing effects on Nanog expression and ES cell pluripotency; forced Satb2 expression antagonizes differentiation-associated silencing of Nanog, whereas Satb1 promotes silencing.\",\n      \"method\": \"ChIP (binding to Nanog locus), Satb1/Satb2 single and double knockout ES cells, forced expression, cell fusion reprogramming assays\",\n      \"journal\": \"Genes & development\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — reciprocal genetic experiments (single and double KO + forced expression) with direct ChIP evidence for locus binding\",\n      \"pmids\": [\"19933152\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"SATB2 physically interacts with ΔNp63α and augments ΔNp63α-mediated transrepression by enhancing ΔNp63α engagement to p53-family responsive elements, thereby promoting chemoresistance in head and neck squamous cell carcinoma; RNAi knockdown of SATB2 re-sensitizes cells to chemotherapy/γ-irradiation-induced apoptosis.\",\n      \"method\": \"Co-immunoprecipitation, chromatin immunoprecipitation, shRNA knockdown with apoptosis readout, reporter assays\",\n      \"journal\": \"EMBO reports\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus ChIP plus functional KD rescue, single lab\",\n      \"pmids\": [\"20829881\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"Satb2 and Ctip2 directly and negatively regulate expression of the Netrin1 receptors DCC and Unc5C, respectively, placing these axon guidance molecules downstream of Satb2/Ctip2 in the transcriptional network controlling callosal versus corticofugal axon guidance.\",\n      \"method\": \"Genetic loss-of-function (Satb2 and Ctip2 knockout mice), gene expression analysis, epistasis\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — genetic epistasis in vivo with direct expression readouts, single lab\",\n      \"pmids\": [\"24739528\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"In adult hippocampal neurons, synaptic activity and BDNF upregulate Satb2, which then binds to promoters of coding and non-coding genes and controls hippocampal levels of a large cohort of miRNAs implicated in synaptic plasticity; conditional deletion of Satb2 from adult forebrain prevents stabilization of long-term potentiation and impairs long-term memory.\",\n      \"method\": \"Conditional knockout (Satb2 adult forebrain-specific CKO), ChIP (promoter binding), LTP electrophysiology, fear conditioning and object discrimination behavioral assays, miRNA profiling\",\n      \"journal\": \"eLife\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — multiple orthogonal methods (CKO, ChIP, electrophysiology, behavior) with direct mechanistic readouts in a single rigorous study\",\n      \"pmids\": [\"27897969\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"Missense mutations in the CUT1 domain of SATB2 (e.g., p.Arg389Cys) increase nuclear mobility of the protein, while mutations in CUT2 or between CUT2 and HOX (p.Gly515Ser, p.Gln566Lys) reduce mobility, indicating that these domains mediate chromatin/matrix association; truncated proteins retaining all three DNA-binding domains are produced from last-exon nonsense mutations.\",\n      \"method\": \"Fluorescence recovery after photobleaching (FRAP) of fluorescently-tagged mutant SATB2 in patient-derived fibroblasts, western blot for protein production\",\n      \"journal\": \"Genetics in medicine\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — direct live-imaging FRAP with multiple disease variants, single lab\",\n      \"pmids\": [\"28151491\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"In BCR-ABL+ leukemias, the atypical protein kinase C isoform aPKCλ/ι acts through an ERK-dependent pathway to form an Etv5/SATB2 chromatin repressive signaling complex that downregulates key B-cell differentiation genes, driving differentiation arrest; genetic or pharmacological targeting of aPKCλ/ι impairs leukemic transformation.\",\n      \"method\": \"In vitro and in vivo B-cell transformation assays, genetic knockouts and pharmacological inhibition of aPKCλ/ι, chromatin repression assays, primary human and murine BCR-ABL+ leukemic progenitors\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — in vivo genetic and pharmacological epistasis with mechanistic complex identification, single lab\",\n      \"pmids\": [\"30610188\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"SATB2 recruits histone acetyltransferase CBP to the MAR sequence of the FOXM1 gene locus, activating FOXM1 expression and promoting cell proliferation in glioblastoma stem cells; pharmacological inhibition of SATB2/CBP interaction with the CBP inhibitor C646 suppresses glioma stem cell proliferation and GBM tumor growth.\",\n      \"method\": \"ChIP (SATB2 binding at FOXM1 MAR), co-immunoprecipitation (SATB2-CBP interaction), shRNA knockdown, pharmacological inhibition (C646), in vitro and in vivo tumor growth assays\",\n      \"journal\": \"EMBO molecular medicine\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus ChIP plus pharmacological and genetic functional validation, single lab\",\n      \"pmids\": [\"33124191\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"SATB2 interacts with the inner nuclear membrane protein LEMD2 and the ESCRT-III/VPS4 membrane-remodeling complex; this interaction mediates activity-dependent nuclear shape plasticity in hippocampal CA1 neurons and is required for neuronal activity-dependent regulation of rapid and delayed primary response genes linked to cognition.\",\n      \"method\": \"Co-immunoprecipitation (SATB2-LEMD2), in vivo novel environment exposure + nuclear shape measurement, LEMD2 depletion in cortical neurons with gene expression readouts\",\n      \"journal\": \"The EMBO journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus in vivo functional experiments, single lab\",\n      \"pmids\": [\"33319920\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"ZFP451-mediated SUMO2 modification of SATB2 at two acceptor lysines drives embryonic stem cell differentiation; SUMOylation enables SATB2 to interact with ZFP451 and the LSD1/CoREST complex, gain binding at differentiation genes, silence pluripotency genes including Nanog, and alter higher-order chromatin interactions. Mutations at SUMO-acceptor lysines or ZFP451 knockout impairs these responses.\",\n      \"method\": \"Conditional Satb2 knockout, Satb2 SUMO-acceptor lysine point mutants, Zfp451 knockout, SUMO2-SATB2 fusion rescue experiments, ChIP, Hi-C/chromatin interaction mapping, co-immunoprecipitation\",\n      \"journal\": \"Genes & development\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1-2 / Strong — multiple orthogonal methods (KO, separation-of-function mutations, fusion rescue, ChIP, chromatin interaction mapping, co-IP) in a single rigorous study\",\n      \"pmids\": [\"34244292\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"SATB2 is required to preserve LGR5+ colonic stem cell identity; Satb2 loss in adult mice converts colonic stem cells into ileal-like stem cells. SATB2 maintains colonic identity in part by modulating enhancer binding of the intestinal transcription factors CDX2 and HNF4A.\",\n      \"method\": \"Conditional Satb2 knockout in adult mouse colon (inducible Cre), human colonic organoids with SATB2 loss, ChIP/enhancer accessibility analysis (CDX2, HNF4A)\",\n      \"journal\": \"Cell stem cell\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — in vivo CKO plus human organoid validation plus mechanistic chromatin analysis, single study with multiple orthogonal methods\",\n      \"pmids\": [\"34582804\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"SATB2 binding within chromatin loops and near topological anchor points in myoblasts influences loop and sub-TAD domain formation; caspase 7-mediated cleavage and removal of SATB2 is required to initiate chromatin remodeling and myogenic differentiation. SATB2 deletion accelerates differentiation, while its presence maintains a chromatin environment that represses differentiation-inducing factors.\",\n      \"method\": \"SATB2 CRISPR deletion in myoblasts, genome-wide chromatin interaction mapping (Hi-C/ChIP), caspase 7 cleavage assays, differentiation assays\",\n      \"journal\": \"Cells\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — genome-wide chromatin mapping plus functional KO and caspase cleavage, single lab\",\n      \"pmids\": [\"35326417\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"SATB2 affects chromatin looping between enhancers and promoters of neuronal-activity-regulated genes in cortical neurons, alters A/B compartments, topologically associating domains, and frequently interacting regions; it operates both independently and in cooperation with CTCF to organize the 3D chromatin landscape of pyramidal neurons for cognitive processes.\",\n      \"method\": \"Mapping chromatin interactions (Hi-C/HiChIP) and accessibility (ATAC-seq) in control vs. SATB2-deficient cortical neurons, ChIP-seq\",\n      \"journal\": \"Molecular cell\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1-2 / Strong — genome-wide 3D chromatin and accessibility mapping in KO vs. control with multiple orthogonal methods in a single study\",\n      \"pmids\": [\"38244545\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"MTA2 forms a chromatin complex with SATB2 that co-occupies DNA with HNF4A on colonic chromatin; MTA2 loss leads to HNF4A release from colonic chromatin and accumulation on small intestinal chromatin. SATB2 similarly restrains colonic-to-small-intestinal plasticity through an HNF4A-dependent mechanism, defining a model in which broadly expressed TFs are retained on tissue-specific enhancers to maintain cell identity.\",\n      \"method\": \"Proteomics (SATB2 interactome), CRISPR-Cas9 screen, conditional MTA2 and SATB2 knockout in adult mouse colon, ChIP-seq (MTA2, HNF4A, SATB2), lipid uptake functional assays\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1-2 / Strong — proteomics interactome identification plus CRISPR screen plus ChIP-seq plus in vivo KO, multiple orthogonal methods in one study\",\n      \"pmids\": [\"38678016\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"Satb2 is required for specifying retrosplenial cortex (Rsp) identity; it represses Nr4a2 transcription in Rsp neurons, and misexpression of Nr4a2 together with Ctip2 induces subiculum-specific gene expression in wild-type Rsp. Simultaneous knockdown of Nr4a2 and Ctip2 in Satb2-mutant Rsp cells prevents their fate transition.\",\n      \"method\": \"Conditional Satb2 knockout (CKO) in mouse cortex, in utero electroporation for cell-autonomous inactivation, gene expression analysis, rescue by Nr4a2+Ctip2 knockdown\",\n      \"journal\": \"Cell death and differentiation\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — in vivo CKO plus genetic epistasis rescue experiments, single lab\",\n      \"pmids\": [\"31666685\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"Estrogen receptor β (ERβ) binds to an estrogen response element (ERE) at -488 of the SATB2 gene promoter to mediate estrogen-induced upregulation of SATB2 expression in bone marrow stromal cells, linking estrogen signaling to SATB2-dependent stemness and osteogenic differentiation.\",\n      \"method\": \"ERβ/ERα inhibitor experiments, ChIP (ERβ binding to SATB2 promoter ERE), SATB2 overexpression rescue in OVX-BMSCs, in vivo OVX rat model\",\n      \"journal\": \"Journal of cellular physiology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP demonstrating direct promoter binding plus functional rescue, single lab\",\n      \"pmids\": [\"29030963\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"TNF-α suppresses SATB2 expression through NF-κB directly binding to the SATB2 promoter; additionally, TNF-α activates ERK1/2 (whose inhibition abrogates SATB2 suppression) and depresses Smad1/5/8 signaling, all contributing to inhibition of osteoblast differentiation.\",\n      \"method\": \"ChIP (NF-κB binding to SATB2 promoter), ERK1/2 inhibitor (U0126), signaling pathway analysis, C2C12 osteoblast differentiation assays\",\n      \"journal\": \"Oncotarget\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — direct ChIP evidence plus pharmacological pathway dissection, single lab\",\n      \"pmids\": [\"29435145\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"SATB2 directly binds to the SLC26A3 promoter (a Cl-/HCO3- exchanger) to regulate its expression, controlling intestinal luminal environment and gut flora homeostasis; intestinal epithelial-specific Satb2 knockout mice develop more severe colitis.\",\n      \"method\": \"ChIP and luciferase reporter assay (SATB2 at SLC26A3 promoter), intestinal epithelial-specific Satb2 CKO mice, RNA-seq, microbiome 16S rDNA sequencing\",\n      \"journal\": \"Journal of Crohn's & colitis\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP plus reporter assay plus in vivo CKO, single lab\",\n      \"pmids\": [\"34019628\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"SATB2 suppresses c-Myc expression in colorectal cancer cells through inactivation of ERK5; conversely SATB1 promotes c-Myc expression. SATB1 and SATB2 are negatively correlated in colorectal cancer tissues and exert opposing functions in colorectal tumorigenesis.\",\n      \"method\": \"Ectopic SATB2 expression in colorectal cancer cells, ERK5 activity assays, c-Myc rescue experiments, SATB1 knockdown, in vivo xenograft tumor assays\",\n      \"journal\": \"Oncotarget\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — multiple functional experiments (OE, rescue, KD) with pathway placement, single lab\",\n      \"pmids\": [\"26701851\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"SATB2 regulates hippocampal long-term memory and adult-stage cortical neurons' interactome; the adult SATB2 protein complex is enriched for proteins that stabilize chromatin loops and shows a developmental shift from transcriptional repression (neonatal) toward organization of chromosomal superstructure (adult).\",\n      \"method\": \"SATB2 protein interactome isolation (immunoprecipitation-MS) at neonatal and adult stages, gene expression analysis (RNA-seq), GWAS enrichment analysis\",\n      \"journal\": \"PLoS genetics\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — proteomics interactome at two developmental stages, single lab\",\n      \"pmids\": [\"30726206\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"Ezh2-mediated deposition of the repressive histone mark H3K27me3 on the SATB2 gene suppresses SATB2 expression in osteogenic progenitors from obese rat dams; Ezh2 knockdown increases and Ezh2 overexpression decreases SATB2 expression, linking maternal obesity to impaired fetal osteoblast differentiation via epigenetic silencing of SATB2.\",\n      \"method\": \"ChIP-seq (H3K27me3 at SATB2 locus), Ezh2 knockdown and overexpression in embryonic osteogenic cells, in vivo Ezh2 CKO mice (Osx-Cre)\",\n      \"journal\": \"FASEB journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP-seq plus genetic KO and KD, single lab\",\n      \"pmids\": [\"31908011\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"SATB2 coordinates with NRF2 to drive enhancer-promoter interactions, amplifying NRF2 target gene transcriptional activity in renal cell carcinoma; SATB2 recruits SWI/SNF complex subunits BRD7 and BRG1 to sustain DNA accessibility, and its expression is activated by YAP/TEAD4.\",\n      \"method\": \"ChIP-seq, ATAC-seq, co-immunoprecipitation (SATB2-SWI/SNF), transcriptome analysis, patient-derived xenograft and organoid experiments with SATB2/BRD7 targeting\",\n      \"journal\": \"Cancer research\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP-seq plus ATAC-seq plus co-IP, single lab\",\n      \"pmids\": [\"36598364\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"SATB2 drives melanoma invasion by binding and activating neural crest regulators including pdgfab and snai2, inducing invadopodia formation; the transcriptional program induced by SATB2 overlaps with drug-resistant melanoma states and drives resistance to Vemurafenib in vivo.\",\n      \"method\": \"Overexpression screen in zebrafish mitfa:BRAFV600E;tp53-/- model, ChIP (SATB2 binding at pdgfab/snai2), in vivo tumor invasion assays, Vemurafenib resistance assays\",\n      \"journal\": \"eLife\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — in vivo overexpression screen plus ChIP plus functional drug resistance assays, single lab\",\n      \"pmids\": [\"33527896\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"A frameshift mutation in SATB2 causes the mutant protein to fail nuclear translocation and remain cytoplasmic, preventing activation of Wnt/β-catenin signaling; wild-type SATB2 translocates to the nucleus and upregulates active β-catenin. Mutant SATB2 also upregulates DKK1 and histone demethylase JHDM1D to further inhibit Wnt/β-catenin signaling.\",\n      \"method\": \"Fluorescent immunocytochemistry (nuclear vs. cytoplasmic localization of mutant vs. WT SATB2), western blot (β-catenin), Wnt inhibitor (XAV939) rescue, gene expression analysis in human dental pulp stem cells\",\n      \"journal\": \"Stem cell research & therapy\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 3 / Moderate — localization assay plus functional pathway rescue with pharmacological inhibitor, single lab\",\n      \"pmids\": [\"34863303\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2012,\n      \"finding\": \"Satb1 and Satb2 are dispensable for X chromosome inactivation in mice; female Satb1-/-Satb2-/- fibroblasts contain proper Barr bodies with normal Xist RNA coating and H3K27me3 modifications, and do not show upregulation of X-linked genes.\",\n      \"method\": \"FISH (Xist RNA), immunohistochemistry (H3K27me3), double knockout (Satb1-/-Satb2-/-) mouse-derived fibroblasts, gene expression analysis\",\n      \"journal\": \"Developmental cell\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — negative result established by multiple orthogonal methods (FISH, IHC, expression) in double-KO cells\",\n      \"pmids\": [\"23079603\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"SATB2 is a nuclear matrix attachment region (MAR)-binding chromatin organizer that binds AT-rich DNA sequences through its CUT and homeodomain domains to regulate higher-order chromatin architecture (loop formation, TAD structure, A/B compartment organization) and gene expression; it represses target loci (e.g., Ctip2, Nr4a2, Hoxa2) by recruiting NuRD/HDAC complexes, activates target loci (e.g., FOXM1) by recruiting CBP/p300 acetyltransferases, and cooperates with or antagonizes transcription factors including Runx2, ATF4, ΔNp63α, HNF4A, NRF2, and CDX2 to determine cell identity in osteoblasts, upper-layer cortical neurons, colonic epithelium, and other lineages; its activity is post-translationally regulated by ZFP451-mediated SUMO2 modification (driving ES cell differentiation) and caspase 7-mediated cleavage (permitting myogenic differentiation), and its expression is controlled by upstream signals including BMP/Smad, ERβ, and NF-κB acting directly at the SATB2 promoter.\"\n}\n```","stage2_raw":"{\n  \"mechanistic_narrative\": \"SATB2 is a nuclear matrix-associated chromatin organizer that binds AT-rich DNA through CUT and homeodomain regions and shapes higher-order genome architecture — enhancer-promoter looping, sub-TAD/TAD domains, and A/B compartment organization — to enforce cell-type identity across multiple lineages [#7, #14, #11]. Domain mutations in CUT1 increase, and CUT2/HOX-region mutations decrease, the protein's nuclear mobility, defining these domains as mediators of chromatin/matrix association [#7]. SATB2 acts as a context-dependent transcriptional switch: it represses target loci by engaging the NuRD/HDAC machinery (HDAC1, MTA2) at AT-rich sites [#2], and activates loci such as FOXM1 by recruiting the acetyltransferase CBP to a matrix-attachment region [#9]. In the developing neocortex it specifies upper-layer callosal neuron identity by repressing Ctip2 and downstream axon-guidance genes, and in the adult forebrain it couples synaptic activity to long-term memory by reorganizing the 3D chromatin landscape of activity-regulated genes, acting both independently and with CTCF [#0, #5, #6, #14]. The same architectural logic maintains identity elsewhere: SATB2 preserves LGR5+ colonic stem-cell fate by retaining CDX2/HNF4A on tissue-specific enhancers through an MTA2-containing complex [#12, #15], cooperates with Runx2 and ATF4 to drive osteoblast differentiation [#1], and antagonizes SATB1 to sustain pluripotency-associated Nanog expression in ES cells [#3]. SATB2 activity is post-translationally gated: ZFP451-mediated SUMO2 modification redirects it to silence pluripotency genes and reorganize chromatin contacts to drive ES-cell differentiation [#11], while caspase-7 cleavage removes SATB2 to release a chromatin block on myogenic differentiation [#13]. Its expression is set by upstream signals acting at the SATB2 promoter, including ERβ-mediated estrogen induction, NF-κB/TNF-α suppression, and Ezh2-deposited H3K27me3 silencing [#17, #18, #22]. Dysregulated SATB2 contributes to multiple cancers, promoting glioblastoma and renal carcinoma proliferation, melanoma invasion, and leukemic differentiation arrest [#9, #23, #24, #8].\",\n  \"teleology\": [\n    {\n      \"year\": 2006,\n      \"claim\": \"Established SATB2 as a transcriptional cofactor that physically partners with lineage transcription factors, answering how it contributes to osteoblast specification.\",\n      \"evidence\": \"Co-IP, luciferase transactivation, and double-heterozygous mouse genetic epistasis with Runx2/ATF4\",\n      \"pmids\": [\"16751105\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not resolve whether SATB2 acts via chromatin architecture or direct co-activation\", \"Repression of Hoxa2 mechanism not detailed\"]\n    },\n    {\n      \"year\": 2008,\n      \"claim\": \"Defined SATB2's role in cortical neuron identity by showing it binds and represses Ctip2 to specify callosal versus corticospinal fate.\",\n      \"evidence\": \"ChIP at Ctip2 locus, ectopic expression, and Satb2 knockout mice with axonal/expression readouts (two concurrent papers)\",\n      \"pmids\": [\"18255031\", \"18255030\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not identify the repressive cofactor machinery\", \"Downstream effector genes not yet mapped\"]\n    },\n    {\n      \"year\": 2008,\n      \"claim\": \"Identified the molecular basis of SATB2-mediated repression as recruitment of the NuRD/HDAC complex.\",\n      \"evidence\": \"In vitro DNA-affinity binding, ChIP, and TSA pharmacological rescue showing HDAC1/MTA2 interaction in cortical neurons\",\n      \"pmids\": [\"18333962\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Single lab\", \"Stoichiometry and recruitment mechanism to specific loci unresolved\"]\n    },\n    {\n      \"year\": 2009,\n      \"claim\": \"Revealed an antagonistic SATB1/SATB2 relationship at the Nanog locus governing ES-cell pluripotency.\",\n      \"evidence\": \"ChIP, single and double Satb1/Satb2 knockout ES cells, forced expression, cell-fusion reprogramming\",\n      \"pmids\": [\"19933152\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Mechanism of opposing effects not resolved\", \"Did not address post-translational control\"]\n    },\n    {\n      \"year\": 2017,\n      \"claim\": \"Mapped SATB2 domain functions to chromatin/matrix association via disease-variant mobility, linking structure to architectural role.\",\n      \"evidence\": \"FRAP of fluorescently-tagged mutant SATB2 in patient fibroblasts plus western blot\",\n      \"pmids\": [\"28151491\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Mobility changes not linked to specific target-gene outcomes\", \"Single lab\"]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"Showed SATB2 can also activate transcription, recruiting CBP to a MAR to drive FOXM1 and tumor proliferation, establishing its bidirectional regulatory capacity.\",\n      \"evidence\": \"ChIP at FOXM1 MAR, SATB2-CBP co-IP, shRNA, and C646 pharmacological inhibition in glioblastoma models\",\n      \"pmids\": [\"33124191\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"What determines activator vs repressor mode at a given locus unknown\", \"Single lab\"]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"Connected SATB2 to nuclear envelope remodeling, linking activity-dependent nuclear shape plasticity to gene regulation in neurons.\",\n      \"evidence\": \"SATB2-LEMD2 co-IP, in vivo nuclear shape measurement, LEMD2 depletion with expression readouts\",\n      \"pmids\": [\"33319920\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Direct ESCRT-III/VPS4 interaction interface unresolved\", \"Single lab\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Established SUMO2 modification as a post-translational switch redirecting SATB2 to drive ES-cell differentiation through altered chromatin interactions.\",\n      \"evidence\": \"Conditional KO, SUMO-acceptor point mutants, ZFP451 KO, SUMO-SATB2 fusion rescue, ChIP, Hi-C, co-IP\",\n      \"pmids\": [\"34244292\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Triggers of ZFP451 SUMOylation in vivo unclear\", \"Generality to other lineages untested in this study\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Defined SATB2 as a guardian of colonic stem-cell identity acting through CDX2/HNF4A enhancer retention.\",\n      \"evidence\": \"Inducible colonic Satb2 CKO, human organoids, and CDX2/HNF4A enhancer/ChIP analysis\",\n      \"pmids\": [\"34582804\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not yet define the full SATB2 interactome retaining HNF4A\", \"Reversibility kinetics unresolved\"]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Showed caspase-7 cleavage removes SATB2 to permit chromatin remodeling and myogenic differentiation, a second post-translational control point.\",\n      \"evidence\": \"CRISPR deletion in myoblasts, genome-wide chromatin interaction mapping, caspase-7 cleavage and differentiation assays\",\n      \"pmids\": [\"35326417\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Caspase-7 cleavage site and upstream activation signal not defined\", \"Single lab\"]\n    },\n    {\n      \"year\": 2024,\n      \"claim\": \"Provided genome-scale evidence that SATB2 organizes 3D chromatin (loops, TADs, compartments) of neuronal activity genes, acting with and independently of CTCF for cognition.\",\n      \"evidence\": \"Hi-C/HiChIP, ATAC-seq, and ChIP-seq in control vs SATB2-deficient cortical neurons\",\n      \"pmids\": [\"38244545\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Determinants of CTCF-dependent vs independent action unresolved\", \"Direct loop-extrusion role not established\"]\n    },\n    {\n      \"year\": 2024,\n      \"claim\": \"Resolved the mechanism of colonic identity maintenance: an MTA2-SATB2 complex retains broadly expressed HNF4A on tissue-specific enhancers.\",\n      \"evidence\": \"SATB2 interactome proteomics, CRISPR screen, MTA2/SATB2 colonic CKO, ChIP-seq, lipid-uptake assays\",\n      \"pmids\": [\"38678016\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"How the complex selects colonic over intestinal enhancers unclear\", \"Relationship to architectural looping not integrated\"]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"What molecular features determine whether SATB2 acts as an activator (CBP) or repressor (NuRD/HDAC) at a given locus, and how its post-translational states are coordinated in vivo, remains unresolved.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"No unified model linking SUMOylation, cleavage, and cofactor choice\", \"Structural basis of MAR recognition not solved in the corpus\", \"Mechanism switching activator/repressor mode locus-by-locus unknown\"]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0003677\", \"supporting_discovery_ids\": [0, 2, 7, 9]},\n      {\"term_id\": \"GO:0140110\", \"supporting_discovery_ids\": [0, 1, 9, 16]},\n      {\"term_id\": \"GO:0060090\", \"supporting_discovery_ids\": [2, 9, 15, 23]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005634\", \"supporting_discovery_ids\": [7, 25]},\n      {\"term_id\": \"GO:0000228\", \"supporting_discovery_ids\": [11, 13, 14]},\n      {\"term_id\": \"GO:0005635\", \"supporting_discovery_ids\": [10]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-4839726\", \"supporting_discovery_ids\": [2, 9, 11, 14]},\n      {\"term_id\": \"R-HSA-74160\", \"supporting_discovery_ids\": [0, 1, 9, 16]},\n      {\"term_id\": \"R-HSA-1266738\", \"supporting_discovery_ids\": [0, 1, 12, 16]}\n    ],\n    \"complexes\": [\"NuRD/HDAC complex\", \"LSD1/CoREST complex\", \"SWI/SNF (BRD7/BRG1)\"],\n    \"partners\": [\"RUNX2\", \"ATF4\", \"HDAC1\", \"MTA2\", \"CBP\", \"HNF4A\", \"LEMD2\", \"ZFP451\"],\n    \"other_free_text\": []\n  }\n}","audit_flag":null,"evaluation":{"pairwise":"win","faith_supported":8,"faith_total":8,"faith_pct":100.0}}