{"gene":"SMARCD1","run_date":"2026-06-10T07:46:35","timeline":{"discoveries":[{"year":2003,"finding":"BAF60a (SMARCD1) directly interacts with the glucocorticoid receptor (GR) and with BRG1 and BAF155/BAF170, serving as a critical molecular bridge between nuclear receptors and the BRG1-containing SWI/SNF complex. BAF60a possesses at least two interaction surfaces: one for GR and BRG1, and a second for BAF155 and BAF170. A GR mutant (R488Q) that fails to interact with BAF60a in vitro showed reduced chromatin-remodeling and transcriptional activity. A BAF60a truncation mutant (BAF60a4-140) caused chromatin-specific loss of GR function and prevented GR interaction with the BRG1 complex.","method":"Co-immunoprecipitation, in vitro interaction assays, stable expression of dominant-negative truncation mutant, chromatin-based transcription assays, mutagenesis","journal":"Molecular and cellular biology","confidence":"High","confidence_rationale":"Tier 1–2 / Strong — reciprocal in vitro and in vivo interaction assays combined with mutagenesis and chromatin-specific functional readouts in a single rigorous study","pmids":["12917342"],"is_preprint":false},{"year":2003,"finding":"BAF60a interacts specifically with the VDR/RXR heterodimer complex (but not either individual receptor alone), both in liganded and unliganded states, and modulates transcriptional activity from both negative and enhancer VDREs.","method":"Modified yeast one-hybrid screen, pull-down assays, transient transfection/reporter assays, deletion analysis","journal":"The Journal of steroid biochemistry and molecular biology","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — reciprocal pull-down and yeast screen with functional reporter assay in a single lab study","pmids":["14698202"],"is_preprint":false},{"year":2008,"finding":"BAF60a (SMARCD1) directly interacts with p53, specifically at the tetramerization domain of p53 via amino acids 108–150 of BAF60a, mediating recruitment of the SWI/SNF complex to p53 target gene promoters. siRNA knockdown of BAF60a or expression of the N-terminal BAF60a fragment uncoupled p53 from SWI/SNF and repressed p53-dependent apoptosis and cell cycle arrest.","method":"Yeast two-hybrid, Co-immunoprecipitation, episomal reporter (pREP4-luc), siRNA knockdown, deletion mapping","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 2 / Strong — yeast two-hybrid, Co-IP, functional siRNA knockdown, and mechanistic deletion mapping all in one study with defined phenotypic readouts","pmids":["18303029"],"is_preprint":false},{"year":2008,"finding":"BAF60a (SMARCD1) is a molecular link between PGC-1alpha and the SWI/SNF chromatin-remodeling complex in hepatic lipid metabolism. PGC-1alpha mediates recruitment of BAF60a to PPARalpha-binding sites, leading to transcriptional activation of peroxisomal and mitochondrial fat-oxidation genes. Adenoviral overexpression of BAF60a in hepatocytes stimulated fatty acid beta-oxidation and ameliorated hepatic steatosis in vivo.","method":"Genome-wide coactivation assay, adenoviral overexpression in cultured hepatocytes and in vivo, chromatin immunoprecipitation, gene expression analysis","journal":"Cell metabolism","confidence":"High","confidence_rationale":"Tier 2 / Strong — multiple orthogonal methods (genome-wide screen, ChIP, in vitro and in vivo functional assays) demonstrating PGC-1alpha–BAF60a–PPARalpha axis","pmids":["18680712"],"is_preprint":false},{"year":2009,"finding":"BAF60a (SMARCD1) directly interacts with the androgen receptor (AR) ligand-binding domain coactivator groove via an FxxFF motif in BAF60a in a hormone-dependent manner. BAF60a depletion by siRNA selectively blocked AR-driven TMPRSS2 expression in LNCaP cells while differentially affecting other AR target genes.","method":"FxxLF peptide motif screen, Co-immunoprecipitation with full-length proteins, site-directed mutagenesis of FxxFF motif, siRNA knockdown with endogenous gene expression readouts","journal":"Molecular endocrinology (Baltimore, Md.)","confidence":"High","confidence_rationale":"Tier 2 / Strong — FxxFF motif identified and validated by mutagenesis, full-length protein interaction confirmed, functional siRNA knockdown with selective gene expression phenotype","pmids":["19762545"],"is_preprint":false},{"year":2011,"finding":"BAF60a acts as a coactivator of RORα in the liver, binding near ROR response elements (RORE) on Bmal1 and G6Pase promoters and remodeling chromatin to an active state. Liver-specific knockdown of BAF60a disrupted rhythmic expression of clock and metabolic genes and altered circulating metabolite profiles.","method":"Liver-specific knockdown (adenoviral shRNA), ChIP, gene expression profiling, serum-shock circadian assay in HepG2 cells","journal":"Hepatology (Baltimore, Md.)","confidence":"High","confidence_rationale":"Tier 2 / Strong — liver-specific knockdown in vivo combined with ChIP and in vitro circadian assay demonstrating direct promoter occupancy and chromatin remodeling","pmids":["21725993"],"is_preprint":false},{"year":2014,"finding":"Smarcd1 stimulates transcription of clock genes (notably Bmal1) through co-activation of RORα in vascular smooth muscle cells (VSMCs), and this co-activation is dependent on PGC-1α. Smarcd1 also inhibits VSMC proliferation and migration by blocking cell cycle re-entry and activating kinase signaling pathways.","method":"Gain- and loss-of-function in VSMCs, gene expression analysis, cell cycle and migration assays, co-activation reporter assays","journal":"The Journal of pathology","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — functional loss/gain of function with mechanistic co-activation data, single lab","pmids":["24615205"],"is_preprint":false},{"year":2015,"finding":"SMARCD1 depletion in embryonic stem cells (ESCs) altered chromatin and enhanced endodermal differentiation. ChIP-seq revealed SMARCD1 is both an activator and repressor enriched at developmental regulators, with its chromatin binding coinciding with H3K27me3. SMARCD1 knockdown caused H3K27me3 redistribution and increased H3K4me3 near TSS, including at the Klf4 locus, suggesting SMARCD1 restricts pluripotency by regulating H3K27 methylation.","method":"D-CAP (differential chromatin-associated proteins) biochemical assay, LC-MS/MS, ChIP-seq, gene expression analysis, shRNA knockdown","journal":"Cell reports","confidence":"High","confidence_rationale":"Tier 2 / Strong — multiple orthogonal methods (biochemical fractionation, ChIP-seq, gene expression, functional KD) demonstrating chromatin-level mechanism in a single study","pmids":["25818293"],"is_preprint":false},{"year":2015,"finding":"Hepatocyte-specific inactivation of Baf60a reduced bile acid production and cholesterol absorption, attenuating diet-induced hypercholesterolemia and atherosclerosis. Baf60a stimulates genes in bile acid synthesis, modification, and transport through a CAR/Baf60a feedforward regulatory loop and is required for SWI/SNF complex recruitment to enable an activating epigenetic switch on target genes.","method":"Hepatocyte-specific Baf60a conditional knockout mice, ChIP, gene expression analysis, metabolic measurements","journal":"Cell reports","confidence":"High","confidence_rationale":"Tier 2 / Strong — tissue-specific KO with defined metabolic phenotype, ChIP demonstrating direct promoter occupancy, and regulatory loop characterization","pmids":["26586440"],"is_preprint":false},{"year":2015,"finding":"miR-7 suppresses SMARCD1 protein expression by binding to two seed regions in the 3'UTR of SMARCD1 mRNA, and SMARCD1 knockdown interfered with the interaction between SMARCD1 and p53, reducing p53-dependent BAX and p21 expression, caspase-3 cleavage, and apoptosis upon chemotherapy treatment.","method":"Luciferase reporter assays with wild-type and mutated 3'UTR, Western blot, siRNA knockdown, cell viability and apoptosis assays","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — validated direct 3'UTR targeting by luciferase mutagenesis assay plus functional epistasis showing SMARCD1–p53 coupling in apoptosis, single lab","pmids":["26542803"],"is_preprint":false},{"year":2018,"finding":"BAF60A mediates physical interaction between MITF and the BRG1-containing SWI/SNF complex during melanocyte differentiation. The interaction between MITF and BAF60A required the basic helix-loop-helix domain of MITF, and recombinant BAF60A directly pulled down recombinant MITF in the absence of other SWI/SNF subunits. BAF60A depletion inhibited melanin synthesis and MITF target gene expression; MITF promoted BAF60A recruitment to melanocyte-specific promoters, which was required for BRG1 recruitment and chromatin remodeling.","method":"Co-immunoprecipitation, recombinant protein pull-down, siRNA depletion, ChIP, gene expression analysis, melanin synthesis assay","journal":"Journal of cellular physiology","confidence":"High","confidence_rationale":"Tier 1–2 / Strong — reconstituted direct interaction with recombinant proteins, domain mapping, ChIP, and functional depletion with specific differentiation phenotype","pmids":["30515787"],"is_preprint":false},{"year":2019,"finding":"SMARCD1 mutations cause a syndromic neurodevelopmental disorder in humans. The Drosophila ortholog Bap60, knocked down in postmitotic mushroom body neurons of adult flies, caused defects in long-term memory and altered context-dependent expression of genes involved in neuron function and development during a critical window of juvenile adult brain development when synaptic connections are formed.","method":"Targeted Drosophila knockdown (UAS-RNAi), long-term memory behavioral assay, mushroom-body-specific transcriptome analysis, human clinical exome sequencing","journal":"American journal of human genetics","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — Drosophila ortholog functional knockdown with defined behavioral phenotype and transcriptome analysis; human mutations identified de novo; model organism data","pmids":["30879640"],"is_preprint":false},{"year":2019,"finding":"BAF60a represses hepatic ureagenesis by interacting with Y-box protein 1 (YB-1) to repress Cps1 transcription and switching the chromatin structure of the Cps1 promoter to an inhibitory state. PGC-1α and YB-1 competitively bind to BAF60a, selectively regulating fatty acid β-oxidation and ureagenesis in response to different nutrient states.","method":"Gain- and loss-of-function in mice (adenoviral overexpression, shRNA), ChIP, co-immunoprecipitation, gene expression analysis, serum ammonia measurements","journal":"Molecular metabolism","confidence":"High","confidence_rationale":"Tier 2 / Strong — in vivo gain/loss of function combined with ChIP demonstrating promoter occupancy, Co-IP revealing competitive binding of PGC-1α and YB-1 to BAF60a, and mechanistic functional readouts","pmids":["32029232"],"is_preprint":false},{"year":2020,"finding":"BAF60a regulates VSMC inflammation by recruiting BRG1 (the catalytic SWI/SNF subunit) to promoters of NF-κB target genes. VSMC-specific BAF60a knockout protected mice from Ang II- and elastase-induced AAA formation, suppressing vascular inflammation, monocyte infiltration, and elastin fragmentation. BAF60a also controls CTSS (cathepsin S) expression, preventing ECM degradation.","method":"VSMC-specific Baf60a knockout mice, RNA sequencing with pathway analysis, adenoviral overexpression in human aortic smooth muscle cells, siRNA knockdown, in vivo AAA models","journal":"Arteriosclerosis, thrombosis, and vascular biology","confidence":"High","confidence_rationale":"Tier 2 / Strong — cell-type specific KO in two independent in vivo AAA models, RNA-seq, mechanistic promoter recruitment data, multiple orthogonal methods","pmids":["32787523"],"is_preprint":false},{"year":2020,"finding":"BAF60a maintains chromatin accessibility at PPARγ and EBF2 binding sites for key thermogenic genes in brown fat. Fat-specific BAF60a inactivation impaired cold-induced thermogenesis in brown fat but paradoxically triggered more pronounced cold-induced browning of inguinal white adipose tissue through induction of MC2R (a receptor for ACTH), revealing a dichotomous role of BAF60a-mediated chromatin remodeling in brown versus beige fat programs.","method":"Fat-specific Baf60a conditional knockout mice, ATAC-seq (chromatin accessibility), gene expression analysis, adrenergic/ACTH stimulation experiments","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 2 / Strong — fat-specific KO, ATAC-seq demonstrating direct chromatin accessibility changes at defined TF binding sites, in vivo cold exposure phenotype","pmids":["32404872"],"is_preprint":false},{"year":2020,"finding":"NMR spectroscopy revealed that both the N-terminal region and the SWIB domain of BAF60A directly interact with the tetramerization domain of p53. Specific residues Ile315, Met366, Ala388, and Tyr390 of BAF60A SWIB domain are involved in p53TET binding. The dissociation constant (KD) between BAF60ASWIB and p53TET is approximately 0.3 mM (weak affinity).","method":"NMR spectroscopy, pull-down analysis, KD measurement","journal":"Biochemical and biophysical research communications","confidence":"High","confidence_rationale":"Tier 1 / Moderate — NMR structure with residue-level mapping of interaction interface plus pull-down confirmation; single lab","pmids":["33168186"],"is_preprint":false},{"year":2021,"finding":"Smarcd1 forms a transcription complex with the transcription factor Six2 in dopaminergic cells, binds to the 2840–2933 bp region of the GDNF promoter, and is required for Six2-mediated GDNF expression. Knockdown of Smarcd1 inhibited Six2's effect on GDNF transcription and increased apoptosis of 6-OHDA-injured DA neurons.","method":"LC-ESI-ITMS/MS (interactome screen), Co-immunoprecipitation, ChIP (promoter mapping), siRNA knockdown, overexpression, cell viability and apoptosis assays","journal":"Neuroscience letters","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — Co-IP, ChIP with defined promoter region, and functional siRNA data in a single lab study","pmids":["34233203"],"is_preprint":false},{"year":2022,"finding":"BAF60a inactivation in macrophages triggers proinflammatory gene expression through chromatin remodeling. The transcription factor Atf3 physically interacts with BAF60a to suppress proinflammatory gene expression. Myeloid-specific BAF60a KO promoted adipose tissue macrophage proinflammatory activation, exacerbating diet-induced obesity, insulin resistance, and metabolic dysfunction.","method":"Myeloid-specific Baf60a knockout mice, myeloid-specific overexpression, ATAC-seq, CUT&Tag-seq, transcriptome analysis, Co-IP (BAF60a–Atf3 interaction), in vivo metabolic phenotyping","journal":"Diabetes","confidence":"High","confidence_rationale":"Tier 2 / Strong — myeloid-specific KO and OE, ATAC-seq, CUT&Tag-seq, Co-IP for binding partner, and in vivo phenotype; multiple orthogonal methods","pmids":["35822944"],"is_preprint":false},{"year":2023,"finding":"BAF60a preserves mitochondrial energy homeostasis in macrophages under pro-atherogenic stimuli by retaining nuclear respiratory factor 1 (NRF1) accessibility at critical mitochondrial genes. Myeloid-specific Baf60a deletion compromised mitochondrial integrity in plaque macrophages, increasing adhesion, apoptosis, and plaque development. Overexpression of BAF60a rescued mitochondrial dysfunction in an NRF1-dependent manner.","method":"Myeloid-specific Baf60a knockout mice, adenoviral overexpression, chromatin accessibility analyses (NRF1 binding sites), mitochondrial function assays, in vivo atherosclerosis models","journal":"Cell reports","confidence":"High","confidence_rationale":"Tier 2 / Strong — myeloid-specific KO combined with rescue overexpression, chromatin accessibility at defined NRF1 binding sites, NRF1-dependent rescue experiment","pmids":["37768825"],"is_preprint":false},{"year":2024,"finding":"Smarcd1 is essential for lymphoid cell fate specification in murine hematopoiesis. Acute deletion of Smarcd1 caused lymphopenia with near-complete absence of early lymphoid progenitors and mature B and T cells, while myeloid and erythroid lineages were unaffected. Mechanistically, Smarcd1 interacts with the E2a transcription factor at proximal promoters and regulates distal enhancer activity to activate the lymphoid gene signature in multipotent progenitors.","method":"Conditional acute Smarcd1 deletion in adult murine hematopoiesis, flow cytometry, ChIP/ATAC, gene expression profiling, Co-IP (Smarcd1–E2a interaction)","journal":"Developmental cell","confidence":"High","confidence_rationale":"Tier 2 / Strong — conditional KO with specific lineage phenotype, defined binding partner (E2a), ChIP/ATAC chromatin data at promoters and enhancers, multiple orthogonal methods","pmids":["39232562"],"is_preprint":false},{"year":2025,"finding":"BAF60a physically interacts with Nkx6.1 in islet β cells to selectively modulate chromatin accessibility and transcriptional activity of genes critical for glucose-stimulated insulin secretion (GSIS). β cell-specific BAF60a inactivation impaired biphasic GSIS, causing hyperglycemia; restoration rescued β cell function. A human BAF60a V278M mutation that disrupts the BAF60a–Nkx6.1 interaction was identified and, when introduced into mice, caused β cell dysfunction and impaired glucose homeostasis. BAF60a deficiency also reduced GLP-1R and GIPR expression, attenuating the insulinotropic effect of GLP-1R agonists.","method":"β cell-specific Baf60a conditional knockout, adenoviral restoration, ATAC-seq, ChIP, Co-IP (BAF60a–Nkx6.1), human donor variant characterization, knock-in mouse model with V278M mutation, GSIS assays, in vivo glucose tolerance tests","journal":"The Journal of clinical investigation","confidence":"High","confidence_rationale":"Tier 1–2 / Strong — cell-type specific KO, human variant knock-in, ATAC-seq, Co-IP, in vitro reconstitution of interaction, multiple orthogonal methods with functional rescue","pmids":["41052246"],"is_preprint":false},{"year":2025,"finding":"PU.1 (SPI1) directly binds BAF60A within the BAF complex via a YEATS-like domain on BAF60A. A disordered region of PU.1 adopts a helical conformation upon binding to BAF60A. Disruption of the PU.1–BAF60A interface by knockdown abrogated PU.1's ability to rescue cell viability. Small molecules identified by high-throughput screening can disrupt the PU.1–BAF60A protein-protein interaction by binding to BAF60A at the critical interaction hotspot.","method":"Cryo-EM/structural biology, co-crystal structures of BAF60A with small molecules, co-IP, domain mapping, siRNA knockdown with functional cell viability assay, high-throughput screen","journal":"bioRxiv","confidence":"High","confidence_rationale":"Tier 1 / Moderate — structural determination (co-crystal structures), domain-level mapping, reconstituted direct interaction, functional KD with defined phenotype; single preprint","pmids":[],"is_preprint":true},{"year":2026,"finding":"SMARCD1 directly binds the VEGFA promoter, enhances chromatin accessibility at the promoter, and modifies histone marks to activate VEGFA transcription in ccRCC cells. SMARCD1 knockdown reduced VEGFA expression and sensitized bevacizumab-resistant ccRCC models to anti-angiogenic therapy.","method":"ChIP-qPCR, ATAC-qPCR, luciferase reporter assays, siRNA knockdown, in vitro and in vivo tumor models","journal":"BMC cancer","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP, ATAC, and luciferase reporter assays demonstrating direct promoter binding and chromatin remodeling, single lab","pmids":["41872817"],"is_preprint":false},{"year":2026,"finding":"The E3 ubiquitin ligase CHFR ubiquitinates SMARCD1 in Sertoli cells in response to palmitic acid (PA) exposure, leading to SMARCD1 degradation. Reduced SMARCD1 disrupts blood-testis barrier (BTB) integrity as evidenced by reduced ZO-1 and Cx43 expression. Smarcd1 haploinsufficient male mice showed compromised BTB integrity, and PA exposure further aggravated BTB disruption in these mice.","method":"E3 ligase identification (CHFR), ubiquitination assay, SMARCD1 protein stability analysis, Smarcd1+/- mouse model, cell viability assays, BTB marker expression analysis","journal":"Chemico-biological interactions","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ubiquitination mechanism identified with E3 ligase, haploinsufficient mouse model with defined BTB phenotype; single lab","pmids":["41990863"],"is_preprint":false}],"current_model":"SMARCD1 (BAF60a) is a non-catalytic subunit of the SWI/SNF chromatin-remodeling complex that functions as a direct molecular adaptor between the core SWI/SNF complex (via BRG1, BAF155, BAF170) and diverse transcription factors—including nuclear hormone receptors (GR, AR, VDR), p53, PGC-1α, PPARα, RORα, MITF, E2a, Nkx6.1, PU.1, and YB-1—using defined interaction surfaces (including its SWIB domain and an FxxFF motif) to recruit SWI/SNF to target promoters and enhancers, remodel chromatin accessibility and histone modification states, and thereby regulate tissue-specific transcriptional programs governing hepatic lipid, bile acid, urea, and glucose metabolism; circadian rhythmicity; lymphoid versus myeloid cell fate decisions; β cell insulin secretion; brown/beige adipocyte thermogenesis; macrophage inflammatory activation; vascular smooth muscle cell homeostasis; and neuronal gene programs required for learning and memory."},"narrative":{"mechanistic_narrative":"SMARCD1 (BAF60a) is a non-catalytic subunit of the BRG1-containing SWI/SNF chromatin-remodeling complex that operates as a molecular adaptor coupling sequence-specific transcription factors to the remodeling machinery to control chromatin accessibility and tissue-specific gene programs [PMID:12917342, PMID:26586440]. It bridges the SWI/SNF core (BRG1, BAF155/BAF170) to its recruiting factors through at least two distinct interaction surfaces, and engages partners using defined modules including an FxxFF motif that docks into the androgen receptor coactivator groove and a SWIB domain that contacts the p53 tetramerization domain [PMID:12917342, PMID:19762545, PMID:33168186]. Through these contacts SMARCD1 connects a broad repertoire of transcription factors—nuclear receptors (GR, AR, the VDR/RXR heterodimer), p53, the PGC-1α coactivator and PPARα/RORα axes, YB-1, MITF, E2a, Nkx6.1, PU.1, Atf3, and NRF1—to target promoters and enhancers, where it both activates and represses transcription and reshapes histone modification and chromatin accessibility states [PMID:12917342, PMID:18303029, PMID:18680712, PMID:21725993, PMID:30515787, PMID:32029232, PMID:35822944, PMID:39232562, PMID:41052246]. By directing SWI/SNF to PGC-1α/PPARα and competing PGC-1α/YB-1 inputs, a CAR feedforward loop, and RORα clock elements, it governs hepatic fatty acid β-oxidation, bile acid synthesis, ureagenesis, and circadian metabolic rhythms [PMID:18680712, PMID:21725993, PMID:26586440, PMID:32029232]. The same adaptor logic drives lineage and tissue programs: lymphoid versus myeloid fate via E2a, brown/beige adipocyte thermogenesis via PPARγ/EBF2, β-cell glucose-stimulated insulin secretion via Nkx6.1, and macrophage inflammatory restraint and mitochondrial homeostasis via Atf3 and NRF1 [PMID:32404872, PMID:35822944, PMID:37768825, PMID:39232562, PMID:41052246]. In embryonic stem cells SMARCD1 restricts pluripotency by regulating H3K27 methylation at developmental loci [PMID:25818293]. Human de novo SMARCD1 mutations cause a syndromic neurodevelopmental disorder, and a BAF60a V278M variant that disrupts the Nkx6.1 interaction causes β-cell dysfunction and impaired glucose homeostasis [PMID:30879640, PMID:41052246].","teleology":[{"year":2003,"claim":"Established the foundational adaptor model: how do nuclear receptors physically recruit SWI/SNF? SMARCD1 was shown to bridge the glucocorticoid receptor to the BRG1 complex via separable interaction surfaces.","evidence":"Co-IP, in vitro interaction assays, dominant-negative truncation and GR mutant in chromatin transcription assays","pmids":["12917342"],"confidence":"High","gaps":["Did not resolve atomic structure of the GR-binding surface","Generality of the bridge to other receptors not yet tested"]},{"year":2003,"claim":"Extended the adaptor role to the vitamin D pathway, showing SMARCD1 selectively recognizes the VDR/RXR heterodimer rather than monomeric receptors.","evidence":"Modified yeast one-hybrid screen, pull-down, reporter assays, deletion analysis","pmids":["14698202"],"confidence":"Medium","gaps":["Interaction surface on SMARCD1 not mapped to residues","Endogenous VDR target genes not assessed"]},{"year":2008,"claim":"Showed SMARCD1 couples the tumor suppressor p53 to SWI/SNF, linking the adaptor to apoptosis and cell-cycle control, and mapped the contact to the p53 tetramerization domain.","evidence":"Yeast two-hybrid, Co-IP, episomal reporter, siRNA knockdown, deletion mapping","pmids":["18303029"],"confidence":"High","gaps":["Residue-level interface not resolved at this stage","Whether all p53 targets depend equally on SMARCD1 unclear"]},{"year":2008,"claim":"Defined SMARCD1 as the link from the PGC-1α coactivator to PPARα, placing it at the center of hepatic fat-oxidation gene regulation.","evidence":"Genome-wide coactivation screen, adenoviral overexpression in hepatocytes and in vivo, ChIP, expression analysis","pmids":["18680712"],"confidence":"High","gaps":["Did not address how nutrient state switches partner usage","Chromatin remodeling mechanism inferred rather than directly measured"]},{"year":2009,"claim":"Identified a defined recruitment motif: an FxxFF sequence in SMARCD1 docks into the AR ligand-binding-domain coactivator groove in a hormone-dependent manner, giving gene-selective control of AR targets.","evidence":"FxxLF peptide motif screen, Co-IP, FxxFF mutagenesis, siRNA with endogenous gene readouts","pmids":["19762545"],"confidence":"High","gaps":["Basis for target-gene selectivity among AR targets unexplained","Whether the same motif engages other receptors not tested"]},{"year":2011,"claim":"Connected SMARCD1 to circadian and metabolic gene control by showing it coactivates RORα at clock and gluconeogenic promoters in liver.","evidence":"Liver-specific adenoviral shRNA knockdown, ChIP, expression profiling, serum-shock circadian assay","pmids":["21725993"],"confidence":"High","gaps":["Interplay with the PGC-1α axis at clock genes not yet defined","Direct chromatin remodeling at RORE not structurally characterized"]},{"year":2014,"claim":"Showed the RORα/clock coactivation function operates outside liver in vascular smooth muscle and is PGC-1α-dependent, and links SMARCD1 to suppression of VSMC proliferation and migration.","evidence":"Gain/loss-of-function in VSMCs, expression, cell-cycle and migration assays, coactivation reporters","pmids":["24615205"],"confidence":"Medium","gaps":["In vivo vascular relevance not established here","Mechanism of cell-cycle blockade not resolved"]},{"year":2015,"claim":"Revealed a chromatin-level dual activator/repressor role in stem cells, showing SMARCD1 restricts pluripotency by regulating H3K27me3 distribution at developmental loci.","evidence":"Differential chromatin-associated protein assay, LC-MS/MS, ChIP-seq, shRNA knockdown, expression analysis","pmids":["25818293"],"confidence":"High","gaps":["Mechanistic link between SWI/SNF and PRC2/H3K27me3 not defined","Direct vs indirect effect on H3K4me3 unresolved"]},{"year":2015,"claim":"Demonstrated an in vivo hepatic requirement for bile acid and cholesterol metabolism, defining a CAR/Baf60a feedforward loop driving an activating epigenetic switch.","evidence":"Hepatocyte-specific conditional knockout mice, ChIP, expression, metabolic measurements","pmids":["26586440"],"confidence":"High","gaps":["Direct CAR-SMARCD1 contact not mapped","Histone modification dynamics inferred"]},{"year":2015,"claim":"Placed SMARCD1 under post-transcriptional control by miR-7 and reinforced the SMARCD1-p53 axis as a determinant of chemotherapy-induced apoptosis.","evidence":"Luciferase reporter with WT/mutant 3'UTR, Western blot, siRNA, apoptosis assays","pmids":["26542803"],"confidence":"Medium","gaps":["Physiological contexts where miR-7 regulates SMARCD1 unclear","Single cell-line apoptosis readout"]},{"year":2018,"claim":"Reconstituted a direct, SWI/SNF-independent SMARCD1-MITF contact and showed MITF uses SMARCD1 to recruit BRG1 during melanocyte differentiation.","evidence":"Co-IP, recombinant protein pull-down, siRNA, ChIP, melanin synthesis assay","pmids":["30515787"],"confidence":"High","gaps":["SMARCD1 surface contacting the MITF bHLH not mapped","Whether other bHLH factors use the same surface untested"]},{"year":2019,"claim":"Linked SMARCD1 to human disease and neuronal gene programs, showing de novo mutations cause a neurodevelopmental syndrome and the Drosophila ortholog is required for long-term memory.","evidence":"Human exome sequencing; Drosophila mushroom-body RNAi, memory behavioral assay, transcriptome","pmids":["30879640"],"confidence":"Medium","gaps":["Mechanism by which patient mutations impair SWI/SNF function not defined","Mammalian neuronal targets not identified"]},{"year":2019,"claim":"Established competitive partner selection as a metabolic switch: PGC-1α and YB-1 compete for SMARCD1 to toggle between fatty acid oxidation and repression of ureagenesis at Cps1.","evidence":"In vivo gain/loss-of-function in mice, ChIP, Co-IP, expression, serum ammonia","pmids":["32029232"],"confidence":"High","gaps":["Structural basis of competitive binding not resolved","Signals controlling the partner switch incompletely defined"]},{"year":2020,"claim":"Defined a pro-homeostatic vascular role: SMARCD1 recruits BRG1 to NF-κB target promoters, and its loss in VSMCs protects against aneurysm by limiting inflammation and ECM degradation.","evidence":"VSMC-specific knockout mice, RNA-seq, adenoviral overexpression, siRNA, two AAA models","pmids":["32787523"],"confidence":"High","gaps":["Direct NF-κB-SMARCD1 interaction not shown","Relationship to its anti-proliferative role unresolved"]},{"year":2020,"claim":"Uncovered a dichotomous adipose role: SMARCD1 maintains accessibility at PPARγ/EBF2 sites for brown-fat thermogenesis while restraining beige browning via MC2R.","evidence":"Fat-specific knockout mice, ATAC-seq, expression, adrenergic/ACTH stimulation","pmids":["32404872"],"confidence":"High","gaps":["Why brown and beige programs respond oppositely mechanistically unclear","Direct PPARγ/EBF2-SMARCD1 contacts not mapped"]},{"year":2020,"claim":"Provided residue-level structural detail on the p53 contact, mapping the SWIB domain interface (Ile315, Met366, Ala388, Tyr390) and revealing it is a weak (~0.3 mM) interaction.","evidence":"NMR spectroscopy, pull-down, KD measurement","pmids":["33168186"],"confidence":"High","gaps":["Functional consequence of the weak affinity in cells not tested","Whether N-terminal and SWIB contacts act cooperatively unresolved"]},{"year":2021,"claim":"Extended the adaptor role to dopaminergic neuroprotection, showing SMARCD1 forms a complex with Six2 to drive GDNF transcription.","evidence":"Interactome MS, Co-IP, ChIP promoter mapping, siRNA/overexpression, viability/apoptosis assays","pmids":["34233203"],"confidence":"Medium","gaps":["Direct vs SWI/SNF-mediated Six2 contact not distinguished","In vivo relevance to Parkinsonian models not established"]},{"year":2022,"claim":"Defined an anti-inflammatory macrophage function: SMARCD1 partners with Atf3 to keep proinflammatory genes silenced, with myeloid loss worsening obesity and insulin resistance.","evidence":"Myeloid-specific knockout and overexpression mice, ATAC-seq, CUT&Tag, transcriptome, Co-IP, metabolic phenotyping","pmids":["35822944"],"confidence":"High","gaps":["Atf3-SMARCD1 interface not mapped","How SMARCD1 distinguishes repressive vs activating chromatin actions unclear"]},{"year":2023,"claim":"Showed a metabolic/protective macrophage function distinct from inflammation: SMARCD1 sustains NRF1 accessibility at mitochondrial genes, with loss promoting plaque macrophage dysfunction.","evidence":"Myeloid-specific knockout mice, adenoviral rescue, NRF1-site chromatin accessibility, mitochondrial assays, atherosclerosis models","pmids":["37768825"],"confidence":"High","gaps":["Direct NRF1-SMARCD1 binding not demonstrated","Coordination with the Atf3 inflammatory axis unresolved"]},{"year":2024,"claim":"Established SMARCD1 as a lineage determinant in hematopoiesis, required for lymphoid specification through interaction with E2a at promoters and enhancers.","evidence":"Acute conditional deletion in adult mouse hematopoiesis, flow cytometry, ChIP/ATAC, expression profiling, Co-IP","pmids":["39232562"],"confidence":"High","gaps":["Why myeloid/erythroid lineages are spared mechanistically unclear","E2a-SMARCD1 interface not mapped"]},{"year":2025,"claim":"Linked SMARCD1 to β-cell function and human disease, showing Nkx6.1 partnership controls insulin-secretion gene accessibility and that a V278M variant disrupting this contact causes glucose dysregulation.","evidence":"β-cell-specific knockout, adenoviral restoration, ATAC-seq, ChIP, Co-IP, V278M knock-in mice, human variant, GSIS and glucose-tolerance assays","pmids":["41052246"],"confidence":"High","gaps":["Structural basis of the V278M disruption not resolved","Whether V278M affects other partner interactions untested"]},{"year":2025,"claim":"Provided structural definition of a druggable partner interface, showing PU.1 binds a YEATS-like domain on SMARCD1 and that small molecules can disrupt this protein-protein interaction.","evidence":"Cryo-EM/structural biology, co-crystal structures with small molecules, Co-IP, domain mapping, siRNA viability assay, HTS (preprint)","pmids":[],"confidence":"High","gaps":["Peer review pending","In vivo efficacy of disrupting compounds not established"]},{"year":2026,"claim":"Implicated SMARCD1 in tumor angiogenesis and Sertoli-cell barrier integrity, showing it activates VEGFA transcription in ccRCC and is destabilized by CHFR-mediated ubiquitination affecting the blood-testis barrier.","evidence":"ChIP-qPCR/ATAC-qPCR/luciferase and tumor models (ccRCC); CHFR ubiquitination assay and Smarcd1+/- mice (Sertoli/BTB)","pmids":["41872817","41990863"],"confidence":"Medium","gaps":["VEGFA promoter occupancy mechanism single-lab","CHFR-SMARCD1 ubiquitination site and broader stability regulation not defined"]},{"year":null,"claim":"How SMARCD1 selects among its many competing transcription-factor partners in a given cell to specify activating versus repressive chromatin outcomes remains unresolved.","evidence":"","pmids":[],"confidence":"Medium","gaps":["No unifying structural/biochemical model for partner selection","Mechanistic basis for context-dependent activation vs repression unknown","Most partner interfaces not mapped at residue level"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0060090","term_label":"molecular adaptor activity","supporting_discovery_ids":[0,2,4,10,12,19,20]},{"term_id":"GO:0140110","term_label":"transcription regulator activity","supporting_discovery_ids":[3,5,8,22]},{"term_id":"GO:0042393","term_label":"histone binding","supporting_discovery_ids":[7]}],"localization":[{"term_id":"GO:0005654","term_label":"nucleoplasm","supporting_discovery_ids":[0,2,7,8]},{"term_id":"GO:0000228","term_label":"nuclear chromosome","supporting_discovery_ids":[7,14,17]}],"pathway":[{"term_id":"R-HSA-4839726","term_label":"Chromatin organization","supporting_discovery_ids":[0,7,8,14,17,20]},{"term_id":"R-HSA-74160","term_label":"Gene expression (Transcription)","supporting_discovery_ids":[0,3,5,12,22]},{"term_id":"R-HSA-1430728","term_label":"Metabolism","supporting_discovery_ids":[3,8,12,14]},{"term_id":"R-HSA-1266738","term_label":"Developmental Biology","supporting_discovery_ids":[7,10,19]},{"term_id":"R-HSA-168256","term_label":"Immune System","supporting_discovery_ids":[17,18,19]},{"term_id":"R-HSA-5357801","term_label":"Programmed Cell Death","supporting_discovery_ids":[2,9]}],"complexes":["SWI/SNF (BAF) complex"],"partners":["SMARCA4","SMARCC1","SMARCC2","TP53","PPARGC1A","YBX1","SPI1","NKX6-1"],"other_free_text":[]}},"prefetch_data":{"uniprot":{"accession":"Q96GM5","full_name":"SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily D member 1","aliases":["60 kDa BRG-1/Brm-associated factor subunit A","BRG1-associated factor 60A","BAF60A","SWI/SNF complex 60 kDa subunit"],"length_aa":515,"mass_kda":58.2,"function":"Involved in transcriptional activation and repression of select genes by chromatin remodeling (alteration of DNA-nucleosome topology). Component of SWI/SNF chromatin remodeling complexes that carry out key enzymatic activities, changing chromatin structure by altering DNA-histone contacts within a nucleosome in an ATP-dependent manner (PubMed:29374058, PubMed:8804307). Belongs to the neural progenitors-specific chromatin remodeling complex (npBAF complex) and the neuron-specific chromatin remodeling complex (nBAF complex). During neural development a switch from a stem/progenitor to a postmitotic chromatin remodeling mechanism occurs as neurons exit the cell cycle and become committed to their adult state. The transition from proliferating neural stem/progenitor cells to postmitotic neurons requires a switch in subunit composition of the npBAF and nBAF complexes. As neural progenitors exit mitosis and differentiate into neurons, npBAF complexes which contain ACTL6A/BAF53A and PHF10/BAF45A, are exchanged for homologous alternative ACTL6B/BAF53B and DPF1/BAF45B or DPF3/BAF45C subunits in neuron-specific complexes (nBAF). The npBAF complex is essential for the self-renewal/proliferative capacity of the multipotent neural stem cells. The nBAF complex along with CREST plays a role regulating the activity of genes essential for dendrite growth (By similarity). Has a strong influence on vitamin D-mediated transcriptional activity from an enhancer vitamin D receptor element (VDRE). May be a link between mammalian SWI-SNF-like chromatin remodeling complexes and the vitamin D receptor (VDR) heterodimer (PubMed:14698202). Mediates critical interactions between nuclear receptors and the BRG1/SMARCA4 chromatin-remodeling complex for transactivation (PubMed:12917342). Interacts with AKIRIN2 (By similarity)","subcellular_location":"Nucleus","url":"https://www.uniprot.org/uniprotkb/Q96GM5/entry"},"depmap":{"release":"DepMap","has_data":true,"is_common_essential":false,"resolved_as":"","url":"https://depmap.org/portal/gene/SMARCD1","classification":"Not Classified","n_dependent_lines":230,"n_total_lines":1208,"dependency_fraction":0.19039735099337748},"opencell":{"profiled":true,"resolved_as":"","ensg_id":"ENSG00000066117","cell_line_id":"CID001679","localizations":[{"compartment":"nucleoplasm","grade":3},{"compartment":"nuclear_punctae","grade":2}],"interactors":[{"gene":"ARID1A","stoichiometry":10.0},{"gene":"SMARCA4","stoichiometry":10.0},{"gene":"SMARCB1","stoichiometry":10.0},{"gene":"SMARCC1","stoichiometry":10.0},{"gene":"SMARCC2","stoichiometry":10.0},{"gene":"ACTL6A","stoichiometry":10.0},{"gene":"DPF2","stoichiometry":10.0},{"gene":"SMARCE1","stoichiometry":10.0},{"gene":"BCL7A","stoichiometry":10.0},{"gene":"ARID1B","stoichiometry":4.0}],"url":"https://opencell.sf.czbiohub.org/target/CID001679","total_profiled":1310},"omim":[{"mim_id":"618779","title":"COFFIN-SIRIS SYNDROME 11; CSS11","url":"https://www.omim.org/entry/618779"},{"mim_id":"617475","title":"SPECIFIC GRANULE DEFICIENCY 2; SGD2","url":"https://www.omim.org/entry/617475"},{"mim_id":"614510","title":"MICRO RNA 99B; MIR99B","url":"https://www.omim.org/entry/614510"},{"mim_id":"614509","title":"MICRO RNA 99A; MIR99A","url":"https://www.omim.org/entry/614509"},{"mim_id":"613186","title":"MICRO RNA 100; MIR100","url":"https://www.omim.org/entry/613186"}],"hpa":{"profiled":true,"resolved_as":"","reliability":"Supported","locations":[{"location":"Nucleoplasm","reliability":"Supported"},{"location":"Vesicles","reliability":"Additional"}],"tissue_specificity":"Low tissue specificity","tissue_distribution":"Detected in all","driving_tissues":[],"url":"https://www.proteinatlas.org/search/SMARCD1"},"hgnc":{"alias_symbol":["BAF60A","Rsc6p","CRACD1"],"prev_symbol":[]},"alphafold":{"accession":"Q96GM5","domains":[{"cath_id":"-","chopping":"128-176_399-410","consensus_level":"medium","plddt":86.6118,"start":128,"end":410},{"cath_id":"2.60.40.1970","chopping":"177-193_204-218_229-290_368-397","consensus_level":"high","plddt":91.5188,"start":177,"end":397},{"cath_id":"1.10.245.10","chopping":"302-365","consensus_level":"high","plddt":94.027,"start":302,"end":365},{"cath_id":"1.20.5","chopping":"416-470","consensus_level":"high","plddt":91.2931,"start":416,"end":470},{"cath_id":"1.20.5","chopping":"477-506","consensus_level":"medium","plddt":90.3397,"start":477,"end":506}],"viewer_url":"https://alphafold.ebi.ac.uk/entry/Q96GM5","model_url":"https://alphafold.ebi.ac.uk/files/AF-Q96GM5-F1-model_v6.cif","pae_url":"https://alphafold.ebi.ac.uk/files/AF-Q96GM5-F1-predicted_aligned_error_v6.png","plddt_mean":76.5},"mouse_models":{"mgi_url":"https://www.informatics.jax.org/marker/summary?nomen=SMARCD1","jax_strain_url":"https://www.jax.org/strain/search?query=SMARCD1"},"sequence":{"accession":"Q96GM5","fasta_url":"https://rest.uniprot.org/uniprotkb/Q96GM5.fasta","uniprot_url":"https://www.uniprot.org/uniprotkb/Q96GM5/entry","alphafold_viewer_url":"https://alphafold.ebi.ac.uk/entry/Q96GM5"}},"corpus_meta":[{"pmid":"18680712","id":"PMC_18680712","title":"Genome-wide coactivation analysis of PGC-1alpha identifies BAF60a as a regulator of hepatic lipid metabolism.","date":"2008","source":"Cell metabolism","url":"https://pubmed.ncbi.nlm.nih.gov/18680712","citation_count":150,"is_preprint":false},{"pmid":"12917342","id":"PMC_12917342","title":"BAF60a mediates critical interactions between nuclear receptors and the BRG1 chromatin-remodeling complex for transactivation.","date":"2003","source":"Molecular and cellular biology","url":"https://pubmed.ncbi.nlm.nih.gov/12917342","citation_count":147,"is_preprint":false},{"pmid":"25503559","id":"PMC_25503559","title":"Epigenetic silencing of miR-490-3p reactivates the chromatin remodeler SMARCD1 to promote Helicobacter pylori-induced gastric carcinogenesis.","date":"2014","source":"Cancer research","url":"https://pubmed.ncbi.nlm.nih.gov/25503559","citation_count":109,"is_preprint":false},{"pmid":"18303029","id":"PMC_18303029","title":"BAF60a interacts with p53 to recruit the SWI/SNF complex.","date":"2008","source":"The Journal of biological chemistry","url":"https://pubmed.ncbi.nlm.nih.gov/18303029","citation_count":81,"is_preprint":false},{"pmid":"25818293","id":"PMC_25818293","title":"Differential association of chromatin proteins identifies BAF60a/SMARCD1 as a regulator of embryonic stem cell differentiation.","date":"2015","source":"Cell reports","url":"https://pubmed.ncbi.nlm.nih.gov/25818293","citation_count":43,"is_preprint":false},{"pmid":"28688083","id":"PMC_28688083","title":"The SWI/SNF chromatin-remodeling factors BAF60a, b, and c in nutrient signaling and metabolic control.","date":"2017","source":"Protein & cell","url":"https://pubmed.ncbi.nlm.nih.gov/28688083","citation_count":41,"is_preprint":false},{"pmid":"32787523","id":"PMC_32787523","title":"BAF60a Deficiency in Vascular Smooth Muscle Cells Prevents Abdominal Aortic Aneurysm by Reducing Inflammation and Extracellular Matrix Degradation.","date":"2020","source":"Arteriosclerosis, thrombosis, and vascular biology","url":"https://pubmed.ncbi.nlm.nih.gov/32787523","citation_count":41,"is_preprint":false},{"pmid":"30879640","id":"PMC_30879640","title":"A Syndromic Neurodevelopmental Disorder Caused by Mutations in SMARCD1, a Core SWI/SNF Subunit Needed for Context-Dependent Neuronal Gene Regulation in Flies.","date":"2019","source":"American journal of human genetics","url":"https://pubmed.ncbi.nlm.nih.gov/30879640","citation_count":40,"is_preprint":false},{"pmid":"26586440","id":"PMC_26586440","title":"A Diet-Sensitive BAF60a-Mediated Pathway Links Hepatic Bile Acid Metabolism to Cholesterol Absorption and Atherosclerosis.","date":"2015","source":"Cell reports","url":"https://pubmed.ncbi.nlm.nih.gov/26586440","citation_count":34,"is_preprint":false},{"pmid":"19762545","id":"PMC_19762545","title":"Functional screening of FxxLF-like peptide motifs identifies SMARCD1/BAF60a as an androgen receptor cofactor that modulates TMPRSS2 expression.","date":"2009","source":"Molecular endocrinology (Baltimore, Md.)","url":"https://pubmed.ncbi.nlm.nih.gov/19762545","citation_count":34,"is_preprint":false},{"pmid":"21725993","id":"PMC_21725993","title":"SWItch/sucrose nonfermentable (SWI/SNF) complex subunit BAF60a integrates hepatic circadian clock and energy metabolism.","date":"2011","source":"Hepatology (Baltimore, Md.)","url":"https://pubmed.ncbi.nlm.nih.gov/21725993","citation_count":33,"is_preprint":false},{"pmid":"35822944","id":"PMC_35822944","title":"BAF60a Deficiency in Macrophage Promotes Diet-Induced Obesity and Metabolic Inflammation.","date":"2022","source":"Diabetes","url":"https://pubmed.ncbi.nlm.nih.gov/35822944","citation_count":28,"is_preprint":false},{"pmid":"32404872","id":"PMC_32404872","title":"BAF60a deficiency uncouples chromatin accessibility and cold sensitivity from white fat browning.","date":"2020","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/32404872","citation_count":27,"is_preprint":false},{"pmid":"32299427","id":"PMC_32299427","title":"hsa-miR-100-5p, an overexpressed miRNA in human ovarian endometriotic stromal cells, promotes invasion through attenuation of SMARCD1 expression.","date":"2020","source":"Reproductive biology and endocrinology : RB&E","url":"https://pubmed.ncbi.nlm.nih.gov/32299427","citation_count":27,"is_preprint":false},{"pmid":"26542803","id":"PMC_26542803","title":"MicroRNA-7 Compromises p53 Protein-dependent Apoptosis by Controlling the Expression of the Chromatin Remodeling Factor SMARCD1.","date":"2015","source":"The Journal of biological chemistry","url":"https://pubmed.ncbi.nlm.nih.gov/26542803","citation_count":26,"is_preprint":false},{"pmid":"28868154","id":"PMC_28868154","title":"SMARCD1 regulates senescence-associated lipid accumulation in hepatocytes.","date":"2017","source":"NPJ aging and mechanisms of disease","url":"https://pubmed.ncbi.nlm.nih.gov/28868154","citation_count":24,"is_preprint":false},{"pmid":"27127533","id":"PMC_27127533","title":"Role of BAF60a/BAF60c in chromatin remodeling and hepatic lipid metabolism.","date":"2016","source":"Nutrition & metabolism","url":"https://pubmed.ncbi.nlm.nih.gov/27127533","citation_count":23,"is_preprint":false},{"pmid":"35148461","id":"PMC_35148461","title":"microRNA-99a-5p induces cellular senescence in gemcitabine-resistant bladder cancer by targeting SMARCD1.","date":"2022","source":"Molecular oncology","url":"https://pubmed.ncbi.nlm.nih.gov/35148461","citation_count":23,"is_preprint":false},{"pmid":"32514535","id":"PMC_32514535","title":"Enhanced SMARCD1, a subunit of the SWI/SNF complex, promotes liver cancer growth through the mTOR pathway.","date":"2020","source":"Clinical science (London, England : 1979)","url":"https://pubmed.ncbi.nlm.nih.gov/32514535","citation_count":22,"is_preprint":false},{"pmid":"29079174","id":"PMC_29079174","title":"miR-223 potentially targets SWI/SNF complex protein SMARCD1 in atypical proliferative serous tumor and high-grade ovarian serous carcinoma.","date":"2017","source":"Human pathology","url":"https://pubmed.ncbi.nlm.nih.gov/29079174","citation_count":15,"is_preprint":false},{"pmid":"24615205","id":"PMC_24615205","title":"Hyperlipidaemia impairs the circadian clock and physiological homeostasis of vascular smooth muscle cells via the suppression of Smarcd1.","date":"2014","source":"The Journal of pathology","url":"https://pubmed.ncbi.nlm.nih.gov/24615205","citation_count":15,"is_preprint":false},{"pmid":"14698202","id":"PMC_14698202","title":"Use of a modified yeast one-hybrid screen to identify BAF60a interactions with the Vitamin D receptor heterodimer.","date":"2003","source":"The Journal of steroid biochemistry and molecular biology","url":"https://pubmed.ncbi.nlm.nih.gov/14698202","citation_count":15,"is_preprint":false},{"pmid":"30515787","id":"PMC_30515787","title":"BAF60A mediates interactions between the microphthalmia-associated transcription factor and the BRG1-containing SWI/SNF complex during melanocyte differentiation.","date":"2018","source":"Journal of cellular physiology","url":"https://pubmed.ncbi.nlm.nih.gov/30515787","citation_count":13,"is_preprint":false},{"pmid":"22623154","id":"PMC_22623154","title":"Nucleoplasmic/nucleolar translocation and identification of a nuclear localization signal (NLS) in Dictyostelium BAF60a/SMARCD1 homologue Snf12.","date":"2012","source":"Histochemistry and cell biology","url":"https://pubmed.ncbi.nlm.nih.gov/22623154","citation_count":11,"is_preprint":false},{"pmid":"31097748","id":"PMC_31097748","title":"Modulation of chromatin remodeling proteins SMYD1 and SMARCD1 promotes contractile function of human pluripotent stem cell-derived ventricular cardiomyocyte in 3D-engineered cardiac tissues.","date":"2019","source":"Scientific reports","url":"https://pubmed.ncbi.nlm.nih.gov/31097748","citation_count":10,"is_preprint":false},{"pmid":"32029232","id":"PMC_32029232","title":"SWI/SNF complex subunit BAF60a represses hepatic ureagenesis through a crosstalk between YB-1 and PGC-1α.","date":"2019","source":"Molecular metabolism","url":"https://pubmed.ncbi.nlm.nih.gov/32029232","citation_count":9,"is_preprint":false},{"pmid":"33190170","id":"PMC_33190170","title":"Smarcd1 Inhibits the Malignant Phenotypes of Human Glioblastoma Cells via Crosstalk with Notch1.","date":"2020","source":"Molecular neurobiology","url":"https://pubmed.ncbi.nlm.nih.gov/33190170","citation_count":8,"is_preprint":false},{"pmid":"38023145","id":"PMC_38023145","title":"Tumor suppressive miR-99b-5p as an epigenomic regulator mediating mTOR/AR/SMARCD1 signaling axis in aggressive prostate cancer.","date":"2023","source":"Frontiers in oncology","url":"https://pubmed.ncbi.nlm.nih.gov/38023145","citation_count":8,"is_preprint":false},{"pmid":"37768825","id":"PMC_37768825","title":"Myeloid BAF60a deficiency alters metabolic homeostasis and exacerbates atherosclerosis.","date":"2023","source":"Cell reports","url":"https://pubmed.ncbi.nlm.nih.gov/37768825","citation_count":6,"is_preprint":false},{"pmid":"31637714","id":"PMC_31637714","title":"SMARCD1 is a transcriptional target of specific non-hotspot mutant p53 forms.","date":"2019","source":"Journal of cellular physiology","url":"https://pubmed.ncbi.nlm.nih.gov/31637714","citation_count":6,"is_preprint":false},{"pmid":"35968497","id":"PMC_35968497","title":"Long Noncoding RNA SBF2-AS1 Promotes Abdominal Aortic Aneurysm Formation through the miRNA-520f-3p/SMARCD1 Axis.","date":"2022","source":"Disease markers","url":"https://pubmed.ncbi.nlm.nih.gov/35968497","citation_count":6,"is_preprint":false},{"pmid":"31992292","id":"PMC_31992292","title":"Expression of SMARCD1 interacts with age in association with asthma control on inhaled corticosteroid therapy.","date":"2020","source":"Respiratory research","url":"https://pubmed.ncbi.nlm.nih.gov/31992292","citation_count":6,"is_preprint":false},{"pmid":"39232562","id":"PMC_39232562","title":"Smarcd1 subunit of SWI/SNF chromatin-remodeling complexes collaborates with E2a to promote murine lymphoid specification.","date":"2024","source":"Developmental cell","url":"https://pubmed.ncbi.nlm.nih.gov/39232562","citation_count":5,"is_preprint":false},{"pmid":"35641537","id":"PMC_35641537","title":"Epigenetic regulation of BAF60A determines efficiency of miniature swine iPSC generation.","date":"2022","source":"Scientific reports","url":"https://pubmed.ncbi.nlm.nih.gov/35641537","citation_count":5,"is_preprint":false},{"pmid":"34233203","id":"PMC_34233203","title":"Smarcd1 antagonizes the apoptosis of injured MES23.5 DA cells by enhancing the effect of Six2 on GDNF expression.","date":"2021","source":"Neuroscience letters","url":"https://pubmed.ncbi.nlm.nih.gov/34233203","citation_count":4,"is_preprint":false},{"pmid":"39501640","id":"PMC_39501640","title":"iTreg cells-secreted IL10 alleviates lupus nephritis through inactivating lncRNA HAR1A transcription to suppress SMARCD1-mediated iNOS activation.","date":"2024","source":"Autoimmunity","url":"https://pubmed.ncbi.nlm.nih.gov/39501640","citation_count":4,"is_preprint":false},{"pmid":"25396734","id":"PMC_25396734","title":"Comprehensive analysis of the association of EGFR, CALM3 and SMARCD1 gene polymorphisms with BMD in Caucasian women.","date":"2014","source":"PloS one","url":"https://pubmed.ncbi.nlm.nih.gov/25396734","citation_count":2,"is_preprint":false},{"pmid":"33645151","id":"PMC_33645151","title":"[Progress in the regulation of energy metabolic homeostasis by the SWI/SNF complex subunit Baf60a].","date":"2021","source":"Sheng wu gong cheng xue bao = Chinese journal of biotechnology","url":"https://pubmed.ncbi.nlm.nih.gov/33645151","citation_count":2,"is_preprint":false},{"pmid":"41052246","id":"PMC_41052246","title":"BAF60a-dependent chromatin remodeling preserves β cell function and contributes to the therapeutic benefits of GLP-1R agonists.","date":"2025","source":"The Journal of clinical investigation","url":"https://pubmed.ncbi.nlm.nih.gov/41052246","citation_count":1,"is_preprint":false},{"pmid":"40228401","id":"PMC_40228401","title":"SMARCD1 is a dual regulator of PD-L1 expression and cell proliferation facilitating tumor evasion.","date":"2025","source":"Pathology, research and practice","url":"https://pubmed.ncbi.nlm.nih.gov/40228401","citation_count":1,"is_preprint":false},{"pmid":"39390150","id":"PMC_39390150","title":"SMARCD1 is an essential expression-restricted metastasis modifier.","date":"2024","source":"Communications biology","url":"https://pubmed.ncbi.nlm.nih.gov/39390150","citation_count":1,"is_preprint":false},{"pmid":"33168186","id":"PMC_33168186","title":"NMR spectroscopy uncovers direct interaction between BAF60A and p53.","date":"2020","source":"Biochemical and biophysical research communications","url":"https://pubmed.ncbi.nlm.nih.gov/33168186","citation_count":1,"is_preprint":false},{"pmid":"41219497","id":"PMC_41219497","title":"CBX6 induces CD8+ T cell exhaustion and tumor development in esophageal squamous cell carcinoma through SMARCD1-mediated CCL8 secretion and lactate efflux.","date":"2025","source":"Cell biology and toxicology","url":"https://pubmed.ncbi.nlm.nih.gov/41219497","citation_count":1,"is_preprint":false},{"pmid":"38410477","id":"PMC_38410477","title":"SMARCD1 is a \"Goldilocks\" metastasis modifier.","date":"2024","source":"bioRxiv : the preprint server for biology","url":"https://pubmed.ncbi.nlm.nih.gov/38410477","citation_count":1,"is_preprint":false},{"pmid":"37401939","id":"PMC_37401939","title":"Integrated analysis reveals SMARCD1 is a potential biomarker and therapeutic target in skin cutaneous melanoma.","date":"2023","source":"Journal of cancer research and clinical oncology","url":"https://pubmed.ncbi.nlm.nih.gov/37401939","citation_count":1,"is_preprint":false},{"pmid":"41872817","id":"PMC_41872817","title":"Epigenetic activation of VEGFA by SMARCD1 mediates tumor progression and bevacizumab resistance in clear cell renal cell carcinoma.","date":"2026","source":"BMC cancer","url":"https://pubmed.ncbi.nlm.nih.gov/41872817","citation_count":0,"is_preprint":false},{"pmid":"41990863","id":"PMC_41990863","title":"Palmitic acid exposure disrupts blood-testis barrier integrity via CHFR-mediated ubiquitination and degradation of SMARCD1 in male mice.","date":"2026","source":"Chemico-biological interactions","url":"https://pubmed.ncbi.nlm.nih.gov/41990863","citation_count":0,"is_preprint":false},{"pmid":"37538086","id":"PMC_37538086","title":"Retracted: Long Noncoding RNA SBF2-AS1 Promotes Abdominal Aortic Aneurysm Formation through the miRNA-520f-3p/SMARCD1 Axis.","date":"2023","source":"Disease markers","url":"https://pubmed.ncbi.nlm.nih.gov/37538086","citation_count":0,"is_preprint":false},{"pmid":null,"id":"bio_10.1101_2025.11.10.25339919","title":"DNA methylation-wide association study of prevalent and incident dementia in the US Health and Retirement Study","date":"2025-11-13","source":"bioRxiv","url":"https://doi.org/10.1101/2025.11.10.25339919","citation_count":0,"is_preprint":true},{"pmid":null,"id":"bio_10.1101_2025.08.01.667454","title":"Structural and functional basis of PU.1-BAF interaction enables targeting of lineage-specific transcription","date":"2025-08-01","source":"bioRxiv","url":"https://doi.org/10.1101/2025.08.01.667454","citation_count":0,"is_preprint":true}],"cost":{"stage1":{"model":"claude-sonnet-4-6","input_tokens":25921,"output_tokens":6831,"usd":0.090114,"stage1_stop_reason":"end_turn"},"stage2":{"model":"claude-opus-4-8","input_tokens":16083,"output_tokens":6863,"usd":0.125995,"stage2_stop_reason":"end_turn"},"total_usd":0.216109,"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\": 2003,\n      \"finding\": \"BAF60a (SMARCD1) directly interacts with the glucocorticoid receptor (GR) and with BRG1 and BAF155/BAF170, serving as a critical molecular bridge between nuclear receptors and the BRG1-containing SWI/SNF complex. BAF60a possesses at least two interaction surfaces: one for GR and BRG1, and a second for BAF155 and BAF170. A GR mutant (R488Q) that fails to interact with BAF60a in vitro showed reduced chromatin-remodeling and transcriptional activity. A BAF60a truncation mutant (BAF60a4-140) caused chromatin-specific loss of GR function and prevented GR interaction with the BRG1 complex.\",\n      \"method\": \"Co-immunoprecipitation, in vitro interaction assays, stable expression of dominant-negative truncation mutant, chromatin-based transcription assays, mutagenesis\",\n      \"journal\": \"Molecular and cellular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 / Strong — reciprocal in vitro and in vivo interaction assays combined with mutagenesis and chromatin-specific functional readouts in a single rigorous study\",\n      \"pmids\": [\"12917342\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2003,\n      \"finding\": \"BAF60a interacts specifically with the VDR/RXR heterodimer complex (but not either individual receptor alone), both in liganded and unliganded states, and modulates transcriptional activity from both negative and enhancer VDREs.\",\n      \"method\": \"Modified yeast one-hybrid screen, pull-down assays, transient transfection/reporter assays, deletion analysis\",\n      \"journal\": \"The Journal of steroid biochemistry and molecular biology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — reciprocal pull-down and yeast screen with functional reporter assay in a single lab study\",\n      \"pmids\": [\"14698202\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2008,\n      \"finding\": \"BAF60a (SMARCD1) directly interacts with p53, specifically at the tetramerization domain of p53 via amino acids 108–150 of BAF60a, mediating recruitment of the SWI/SNF complex to p53 target gene promoters. siRNA knockdown of BAF60a or expression of the N-terminal BAF60a fragment uncoupled p53 from SWI/SNF and repressed p53-dependent apoptosis and cell cycle arrest.\",\n      \"method\": \"Yeast two-hybrid, Co-immunoprecipitation, episomal reporter (pREP4-luc), siRNA knockdown, deletion mapping\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — yeast two-hybrid, Co-IP, functional siRNA knockdown, and mechanistic deletion mapping all in one study with defined phenotypic readouts\",\n      \"pmids\": [\"18303029\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2008,\n      \"finding\": \"BAF60a (SMARCD1) is a molecular link between PGC-1alpha and the SWI/SNF chromatin-remodeling complex in hepatic lipid metabolism. PGC-1alpha mediates recruitment of BAF60a to PPARalpha-binding sites, leading to transcriptional activation of peroxisomal and mitochondrial fat-oxidation genes. Adenoviral overexpression of BAF60a in hepatocytes stimulated fatty acid beta-oxidation and ameliorated hepatic steatosis in vivo.\",\n      \"method\": \"Genome-wide coactivation assay, adenoviral overexpression in cultured hepatocytes and in vivo, chromatin immunoprecipitation, gene expression analysis\",\n      \"journal\": \"Cell metabolism\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — multiple orthogonal methods (genome-wide screen, ChIP, in vitro and in vivo functional assays) demonstrating PGC-1alpha–BAF60a–PPARalpha axis\",\n      \"pmids\": [\"18680712\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"BAF60a (SMARCD1) directly interacts with the androgen receptor (AR) ligand-binding domain coactivator groove via an FxxFF motif in BAF60a in a hormone-dependent manner. BAF60a depletion by siRNA selectively blocked AR-driven TMPRSS2 expression in LNCaP cells while differentially affecting other AR target genes.\",\n      \"method\": \"FxxLF peptide motif screen, Co-immunoprecipitation with full-length proteins, site-directed mutagenesis of FxxFF motif, siRNA knockdown with endogenous gene expression readouts\",\n      \"journal\": \"Molecular endocrinology (Baltimore, Md.)\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — FxxFF motif identified and validated by mutagenesis, full-length protein interaction confirmed, functional siRNA knockdown with selective gene expression phenotype\",\n      \"pmids\": [\"19762545\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2011,\n      \"finding\": \"BAF60a acts as a coactivator of RORα in the liver, binding near ROR response elements (RORE) on Bmal1 and G6Pase promoters and remodeling chromatin to an active state. Liver-specific knockdown of BAF60a disrupted rhythmic expression of clock and metabolic genes and altered circulating metabolite profiles.\",\n      \"method\": \"Liver-specific knockdown (adenoviral shRNA), ChIP, gene expression profiling, serum-shock circadian assay in HepG2 cells\",\n      \"journal\": \"Hepatology (Baltimore, Md.)\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — liver-specific knockdown in vivo combined with ChIP and in vitro circadian assay demonstrating direct promoter occupancy and chromatin remodeling\",\n      \"pmids\": [\"21725993\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"Smarcd1 stimulates transcription of clock genes (notably Bmal1) through co-activation of RORα in vascular smooth muscle cells (VSMCs), and this co-activation is dependent on PGC-1α. Smarcd1 also inhibits VSMC proliferation and migration by blocking cell cycle re-entry and activating kinase signaling pathways.\",\n      \"method\": \"Gain- and loss-of-function in VSMCs, gene expression analysis, cell cycle and migration assays, co-activation reporter assays\",\n      \"journal\": \"The Journal of pathology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — functional loss/gain of function with mechanistic co-activation data, single lab\",\n      \"pmids\": [\"24615205\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"SMARCD1 depletion in embryonic stem cells (ESCs) altered chromatin and enhanced endodermal differentiation. ChIP-seq revealed SMARCD1 is both an activator and repressor enriched at developmental regulators, with its chromatin binding coinciding with H3K27me3. SMARCD1 knockdown caused H3K27me3 redistribution and increased H3K4me3 near TSS, including at the Klf4 locus, suggesting SMARCD1 restricts pluripotency by regulating H3K27 methylation.\",\n      \"method\": \"D-CAP (differential chromatin-associated proteins) biochemical assay, LC-MS/MS, ChIP-seq, gene expression analysis, shRNA knockdown\",\n      \"journal\": \"Cell reports\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — multiple orthogonal methods (biochemical fractionation, ChIP-seq, gene expression, functional KD) demonstrating chromatin-level mechanism in a single study\",\n      \"pmids\": [\"25818293\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"Hepatocyte-specific inactivation of Baf60a reduced bile acid production and cholesterol absorption, attenuating diet-induced hypercholesterolemia and atherosclerosis. Baf60a stimulates genes in bile acid synthesis, modification, and transport through a CAR/Baf60a feedforward regulatory loop and is required for SWI/SNF complex recruitment to enable an activating epigenetic switch on target genes.\",\n      \"method\": \"Hepatocyte-specific Baf60a conditional knockout mice, ChIP, gene expression analysis, metabolic measurements\",\n      \"journal\": \"Cell reports\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — tissue-specific KO with defined metabolic phenotype, ChIP demonstrating direct promoter occupancy, and regulatory loop characterization\",\n      \"pmids\": [\"26586440\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"miR-7 suppresses SMARCD1 protein expression by binding to two seed regions in the 3'UTR of SMARCD1 mRNA, and SMARCD1 knockdown interfered with the interaction between SMARCD1 and p53, reducing p53-dependent BAX and p21 expression, caspase-3 cleavage, and apoptosis upon chemotherapy treatment.\",\n      \"method\": \"Luciferase reporter assays with wild-type and mutated 3'UTR, Western blot, siRNA knockdown, cell viability and apoptosis assays\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — validated direct 3'UTR targeting by luciferase mutagenesis assay plus functional epistasis showing SMARCD1–p53 coupling in apoptosis, single lab\",\n      \"pmids\": [\"26542803\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2018,\n      \"finding\": \"BAF60A mediates physical interaction between MITF and the BRG1-containing SWI/SNF complex during melanocyte differentiation. The interaction between MITF and BAF60A required the basic helix-loop-helix domain of MITF, and recombinant BAF60A directly pulled down recombinant MITF in the absence of other SWI/SNF subunits. BAF60A depletion inhibited melanin synthesis and MITF target gene expression; MITF promoted BAF60A recruitment to melanocyte-specific promoters, which was required for BRG1 recruitment and chromatin remodeling.\",\n      \"method\": \"Co-immunoprecipitation, recombinant protein pull-down, siRNA depletion, ChIP, gene expression analysis, melanin synthesis assay\",\n      \"journal\": \"Journal of cellular physiology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 / Strong — reconstituted direct interaction with recombinant proteins, domain mapping, ChIP, and functional depletion with specific differentiation phenotype\",\n      \"pmids\": [\"30515787\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"SMARCD1 mutations cause a syndromic neurodevelopmental disorder in humans. The Drosophila ortholog Bap60, knocked down in postmitotic mushroom body neurons of adult flies, caused defects in long-term memory and altered context-dependent expression of genes involved in neuron function and development during a critical window of juvenile adult brain development when synaptic connections are formed.\",\n      \"method\": \"Targeted Drosophila knockdown (UAS-RNAi), long-term memory behavioral assay, mushroom-body-specific transcriptome analysis, human clinical exome sequencing\",\n      \"journal\": \"American journal of human genetics\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — Drosophila ortholog functional knockdown with defined behavioral phenotype and transcriptome analysis; human mutations identified de novo; model organism data\",\n      \"pmids\": [\"30879640\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"BAF60a represses hepatic ureagenesis by interacting with Y-box protein 1 (YB-1) to repress Cps1 transcription and switching the chromatin structure of the Cps1 promoter to an inhibitory state. PGC-1α and YB-1 competitively bind to BAF60a, selectively regulating fatty acid β-oxidation and ureagenesis in response to different nutrient states.\",\n      \"method\": \"Gain- and loss-of-function in mice (adenoviral overexpression, shRNA), ChIP, co-immunoprecipitation, gene expression analysis, serum ammonia measurements\",\n      \"journal\": \"Molecular metabolism\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — in vivo gain/loss of function combined with ChIP demonstrating promoter occupancy, Co-IP revealing competitive binding of PGC-1α and YB-1 to BAF60a, and mechanistic functional readouts\",\n      \"pmids\": [\"32029232\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"BAF60a regulates VSMC inflammation by recruiting BRG1 (the catalytic SWI/SNF subunit) to promoters of NF-κB target genes. VSMC-specific BAF60a knockout protected mice from Ang II- and elastase-induced AAA formation, suppressing vascular inflammation, monocyte infiltration, and elastin fragmentation. BAF60a also controls CTSS (cathepsin S) expression, preventing ECM degradation.\",\n      \"method\": \"VSMC-specific Baf60a knockout mice, RNA sequencing with pathway analysis, adenoviral overexpression in human aortic smooth muscle cells, siRNA knockdown, in vivo AAA models\",\n      \"journal\": \"Arteriosclerosis, thrombosis, and vascular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — cell-type specific KO in two independent in vivo AAA models, RNA-seq, mechanistic promoter recruitment data, multiple orthogonal methods\",\n      \"pmids\": [\"32787523\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"BAF60a maintains chromatin accessibility at PPARγ and EBF2 binding sites for key thermogenic genes in brown fat. Fat-specific BAF60a inactivation impaired cold-induced thermogenesis in brown fat but paradoxically triggered more pronounced cold-induced browning of inguinal white adipose tissue through induction of MC2R (a receptor for ACTH), revealing a dichotomous role of BAF60a-mediated chromatin remodeling in brown versus beige fat programs.\",\n      \"method\": \"Fat-specific Baf60a conditional knockout mice, ATAC-seq (chromatin accessibility), gene expression analysis, adrenergic/ACTH stimulation experiments\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — fat-specific KO, ATAC-seq demonstrating direct chromatin accessibility changes at defined TF binding sites, in vivo cold exposure phenotype\",\n      \"pmids\": [\"32404872\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"NMR spectroscopy revealed that both the N-terminal region and the SWIB domain of BAF60A directly interact with the tetramerization domain of p53. Specific residues Ile315, Met366, Ala388, and Tyr390 of BAF60A SWIB domain are involved in p53TET binding. The dissociation constant (KD) between BAF60ASWIB and p53TET is approximately 0.3 mM (weak affinity).\",\n      \"method\": \"NMR spectroscopy, pull-down analysis, KD measurement\",\n      \"journal\": \"Biochemical and biophysical research communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Moderate — NMR structure with residue-level mapping of interaction interface plus pull-down confirmation; single lab\",\n      \"pmids\": [\"33168186\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"Smarcd1 forms a transcription complex with the transcription factor Six2 in dopaminergic cells, binds to the 2840–2933 bp region of the GDNF promoter, and is required for Six2-mediated GDNF expression. Knockdown of Smarcd1 inhibited Six2's effect on GDNF transcription and increased apoptosis of 6-OHDA-injured DA neurons.\",\n      \"method\": \"LC-ESI-ITMS/MS (interactome screen), Co-immunoprecipitation, ChIP (promoter mapping), siRNA knockdown, overexpression, cell viability and apoptosis assays\",\n      \"journal\": \"Neuroscience letters\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — Co-IP, ChIP with defined promoter region, and functional siRNA data in a single lab study\",\n      \"pmids\": [\"34233203\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"BAF60a inactivation in macrophages triggers proinflammatory gene expression through chromatin remodeling. The transcription factor Atf3 physically interacts with BAF60a to suppress proinflammatory gene expression. Myeloid-specific BAF60a KO promoted adipose tissue macrophage proinflammatory activation, exacerbating diet-induced obesity, insulin resistance, and metabolic dysfunction.\",\n      \"method\": \"Myeloid-specific Baf60a knockout mice, myeloid-specific overexpression, ATAC-seq, CUT&Tag-seq, transcriptome analysis, Co-IP (BAF60a–Atf3 interaction), in vivo metabolic phenotyping\",\n      \"journal\": \"Diabetes\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — myeloid-specific KO and OE, ATAC-seq, CUT&Tag-seq, Co-IP for binding partner, and in vivo phenotype; multiple orthogonal methods\",\n      \"pmids\": [\"35822944\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"BAF60a preserves mitochondrial energy homeostasis in macrophages under pro-atherogenic stimuli by retaining nuclear respiratory factor 1 (NRF1) accessibility at critical mitochondrial genes. Myeloid-specific Baf60a deletion compromised mitochondrial integrity in plaque macrophages, increasing adhesion, apoptosis, and plaque development. Overexpression of BAF60a rescued mitochondrial dysfunction in an NRF1-dependent manner.\",\n      \"method\": \"Myeloid-specific Baf60a knockout mice, adenoviral overexpression, chromatin accessibility analyses (NRF1 binding sites), mitochondrial function assays, in vivo atherosclerosis models\",\n      \"journal\": \"Cell reports\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — myeloid-specific KO combined with rescue overexpression, chromatin accessibility at defined NRF1 binding sites, NRF1-dependent rescue experiment\",\n      \"pmids\": [\"37768825\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"Smarcd1 is essential for lymphoid cell fate specification in murine hematopoiesis. Acute deletion of Smarcd1 caused lymphopenia with near-complete absence of early lymphoid progenitors and mature B and T cells, while myeloid and erythroid lineages were unaffected. Mechanistically, Smarcd1 interacts with the E2a transcription factor at proximal promoters and regulates distal enhancer activity to activate the lymphoid gene signature in multipotent progenitors.\",\n      \"method\": \"Conditional acute Smarcd1 deletion in adult murine hematopoiesis, flow cytometry, ChIP/ATAC, gene expression profiling, Co-IP (Smarcd1–E2a interaction)\",\n      \"journal\": \"Developmental cell\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — conditional KO with specific lineage phenotype, defined binding partner (E2a), ChIP/ATAC chromatin data at promoters and enhancers, multiple orthogonal methods\",\n      \"pmids\": [\"39232562\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2025,\n      \"finding\": \"BAF60a physically interacts with Nkx6.1 in islet β cells to selectively modulate chromatin accessibility and transcriptional activity of genes critical for glucose-stimulated insulin secretion (GSIS). β cell-specific BAF60a inactivation impaired biphasic GSIS, causing hyperglycemia; restoration rescued β cell function. A human BAF60a V278M mutation that disrupts the BAF60a–Nkx6.1 interaction was identified and, when introduced into mice, caused β cell dysfunction and impaired glucose homeostasis. BAF60a deficiency also reduced GLP-1R and GIPR expression, attenuating the insulinotropic effect of GLP-1R agonists.\",\n      \"method\": \"β cell-specific Baf60a conditional knockout, adenoviral restoration, ATAC-seq, ChIP, Co-IP (BAF60a–Nkx6.1), human donor variant characterization, knock-in mouse model with V278M mutation, GSIS assays, in vivo glucose tolerance tests\",\n      \"journal\": \"The Journal of clinical investigation\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 / Strong — cell-type specific KO, human variant knock-in, ATAC-seq, Co-IP, in vitro reconstitution of interaction, multiple orthogonal methods with functional rescue\",\n      \"pmids\": [\"41052246\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2025,\n      \"finding\": \"PU.1 (SPI1) directly binds BAF60A within the BAF complex via a YEATS-like domain on BAF60A. A disordered region of PU.1 adopts a helical conformation upon binding to BAF60A. Disruption of the PU.1–BAF60A interface by knockdown abrogated PU.1's ability to rescue cell viability. Small molecules identified by high-throughput screening can disrupt the PU.1–BAF60A protein-protein interaction by binding to BAF60A at the critical interaction hotspot.\",\n      \"method\": \"Cryo-EM/structural biology, co-crystal structures of BAF60A with small molecules, co-IP, domain mapping, siRNA knockdown with functional cell viability assay, high-throughput screen\",\n      \"journal\": \"bioRxiv\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Moderate — structural determination (co-crystal structures), domain-level mapping, reconstituted direct interaction, functional KD with defined phenotype; single preprint\",\n      \"pmids\": [],\n      \"is_preprint\": true\n    },\n    {\n      \"year\": 2026,\n      \"finding\": \"SMARCD1 directly binds the VEGFA promoter, enhances chromatin accessibility at the promoter, and modifies histone marks to activate VEGFA transcription in ccRCC cells. SMARCD1 knockdown reduced VEGFA expression and sensitized bevacizumab-resistant ccRCC models to anti-angiogenic therapy.\",\n      \"method\": \"ChIP-qPCR, ATAC-qPCR, luciferase reporter assays, siRNA knockdown, in vitro and in vivo tumor models\",\n      \"journal\": \"BMC cancer\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP, ATAC, and luciferase reporter assays demonstrating direct promoter binding and chromatin remodeling, single lab\",\n      \"pmids\": [\"41872817\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2026,\n      \"finding\": \"The E3 ubiquitin ligase CHFR ubiquitinates SMARCD1 in Sertoli cells in response to palmitic acid (PA) exposure, leading to SMARCD1 degradation. Reduced SMARCD1 disrupts blood-testis barrier (BTB) integrity as evidenced by reduced ZO-1 and Cx43 expression. Smarcd1 haploinsufficient male mice showed compromised BTB integrity, and PA exposure further aggravated BTB disruption in these mice.\",\n      \"method\": \"E3 ligase identification (CHFR), ubiquitination assay, SMARCD1 protein stability analysis, Smarcd1+/- mouse model, cell viability assays, BTB marker expression analysis\",\n      \"journal\": \"Chemico-biological interactions\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ubiquitination mechanism identified with E3 ligase, haploinsufficient mouse model with defined BTB phenotype; single lab\",\n      \"pmids\": [\"41990863\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"SMARCD1 (BAF60a) is a non-catalytic subunit of the SWI/SNF chromatin-remodeling complex that functions as a direct molecular adaptor between the core SWI/SNF complex (via BRG1, BAF155, BAF170) and diverse transcription factors—including nuclear hormone receptors (GR, AR, VDR), p53, PGC-1α, PPARα, RORα, MITF, E2a, Nkx6.1, PU.1, and YB-1—using defined interaction surfaces (including its SWIB domain and an FxxFF motif) to recruit SWI/SNF to target promoters and enhancers, remodel chromatin accessibility and histone modification states, and thereby regulate tissue-specific transcriptional programs governing hepatic lipid, bile acid, urea, and glucose metabolism; circadian rhythmicity; lymphoid versus myeloid cell fate decisions; β cell insulin secretion; brown/beige adipocyte thermogenesis; macrophage inflammatory activation; vascular smooth muscle cell homeostasis; and neuronal gene programs required for learning and memory.\"\n}\n```","stage2_raw":"{\n  \"mechanistic_narrative\": \"SMARCD1 (BAF60a) is a non-catalytic subunit of the BRG1-containing SWI/SNF chromatin-remodeling complex that operates as a molecular adaptor coupling sequence-specific transcription factors to the remodeling machinery to control chromatin accessibility and tissue-specific gene programs [#0, #8]. It bridges the SWI/SNF core (BRG1, BAF155/BAF170) to its recruiting factors through at least two distinct interaction surfaces, and engages partners using defined modules including an FxxFF motif that docks into the androgen receptor coactivator groove and a SWIB domain that contacts the p53 tetramerization domain [#0, #4, #15]. Through these contacts SMARCD1 connects a broad repertoire of transcription factors—nuclear receptors (GR, AR, the VDR/RXR heterodimer), p53, the PGC-1\\u03b1 coactivator and PPAR\\u03b1/ROR\\u03b1 axes, YB-1, MITF, E2a, Nkx6.1, PU.1, Atf3, and NRF1—to target promoters and enhancers, where it both activates and represses transcription and reshapes histone modification and chromatin accessibility states [#0, #2, #3, #5, #10, #12, #17, #19, #20]. By directing SWI/SNF to PGC-1\\u03b1/PPAR\\u03b1 and competing PGC-1\\u03b1/YB-1 inputs, a CAR feedforward loop, and ROR\\u03b1 clock elements, it governs hepatic fatty acid \\u03b2-oxidation, bile acid synthesis, ureagenesis, and circadian metabolic rhythms [#3, #5, #8, #12]. The same adaptor logic drives lineage and tissue programs: lymphoid versus myeloid fate via E2a, brown/beige adipocyte thermogenesis via PPAR\\u03b3/EBF2, \\u03b2-cell glucose-stimulated insulin secretion via Nkx6.1, and macrophage inflammatory restraint and mitochondrial homeostasis via Atf3 and NRF1 [#14, #17, #18, #19, #20]. In embryonic stem cells SMARCD1 restricts pluripotency by regulating H3K27 methylation at developmental loci [#7]. Human de novo SMARCD1 mutations cause a syndromic neurodevelopmental disorder, and a BAF60a V278M variant that disrupts the Nkx6.1 interaction causes \\u03b2-cell dysfunction and impaired glucose homeostasis [#11, #20].\",\n  \"teleology\": [\n    {\n      \"year\": 2003,\n      \"claim\": \"Established the foundational adaptor model: how do nuclear receptors physically recruit SWI/SNF? SMARCD1 was shown to bridge the glucocorticoid receptor to the BRG1 complex via separable interaction surfaces.\",\n      \"evidence\": \"Co-IP, in vitro interaction assays, dominant-negative truncation and GR mutant in chromatin transcription assays\",\n      \"pmids\": [\"12917342\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not resolve atomic structure of the GR-binding surface\", \"Generality of the bridge to other receptors not yet tested\"]\n    },\n    {\n      \"year\": 2003,\n      \"claim\": \"Extended the adaptor role to the vitamin D pathway, showing SMARCD1 selectively recognizes the VDR/RXR heterodimer rather than monomeric receptors.\",\n      \"evidence\": \"Modified yeast one-hybrid screen, pull-down, reporter assays, deletion analysis\",\n      \"pmids\": [\"14698202\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Interaction surface on SMARCD1 not mapped to residues\", \"Endogenous VDR target genes not assessed\"]\n    },\n    {\n      \"year\": 2008,\n      \"claim\": \"Showed SMARCD1 couples the tumor suppressor p53 to SWI/SNF, linking the adaptor to apoptosis and cell-cycle control, and mapped the contact to the p53 tetramerization domain.\",\n      \"evidence\": \"Yeast two-hybrid, Co-IP, episomal reporter, siRNA knockdown, deletion mapping\",\n      \"pmids\": [\"18303029\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Residue-level interface not resolved at this stage\", \"Whether all p53 targets depend equally on SMARCD1 unclear\"]\n    },\n    {\n      \"year\": 2008,\n      \"claim\": \"Defined SMARCD1 as the link from the PGC-1\\u03b1 coactivator to PPAR\\u03b1, placing it at the center of hepatic fat-oxidation gene regulation.\",\n      \"evidence\": \"Genome-wide coactivation screen, adenoviral overexpression in hepatocytes and in vivo, ChIP, expression analysis\",\n      \"pmids\": [\"18680712\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not address how nutrient state switches partner usage\", \"Chromatin remodeling mechanism inferred rather than directly measured\"]\n    },\n    {\n      \"year\": 2009,\n      \"claim\": \"Identified a defined recruitment motif: an FxxFF sequence in SMARCD1 docks into the AR ligand-binding-domain coactivator groove in a hormone-dependent manner, giving gene-selective control of AR targets.\",\n      \"evidence\": \"FxxLF peptide motif screen, Co-IP, FxxFF mutagenesis, siRNA with endogenous gene readouts\",\n      \"pmids\": [\"19762545\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Basis for target-gene selectivity among AR targets unexplained\", \"Whether the same motif engages other receptors not tested\"]\n    },\n    {\n      \"year\": 2011,\n      \"claim\": \"Connected SMARCD1 to circadian and metabolic gene control by showing it coactivates ROR\\u03b1 at clock and gluconeogenic promoters in liver.\",\n      \"evidence\": \"Liver-specific adenoviral shRNA knockdown, ChIP, expression profiling, serum-shock circadian assay\",\n      \"pmids\": [\"21725993\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Interplay with the PGC-1\\u03b1 axis at clock genes not yet defined\", \"Direct chromatin remodeling at RORE not structurally characterized\"]\n    },\n    {\n      \"year\": 2014,\n      \"claim\": \"Showed the ROR\\u03b1/clock coactivation function operates outside liver in vascular smooth muscle and is PGC-1\\u03b1-dependent, and links SMARCD1 to suppression of VSMC proliferation and migration.\",\n      \"evidence\": \"Gain/loss-of-function in VSMCs, expression, cell-cycle and migration assays, coactivation reporters\",\n      \"pmids\": [\"24615205\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"In vivo vascular relevance not established here\", \"Mechanism of cell-cycle blockade not resolved\"]\n    },\n    {\n      \"year\": 2015,\n      \"claim\": \"Revealed a chromatin-level dual activator/repressor role in stem cells, showing SMARCD1 restricts pluripotency by regulating H3K27me3 distribution at developmental loci.\",\n      \"evidence\": \"Differential chromatin-associated protein assay, LC-MS/MS, ChIP-seq, shRNA knockdown, expression analysis\",\n      \"pmids\": [\"25818293\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Mechanistic link between SWI/SNF and PRC2/H3K27me3 not defined\", \"Direct vs indirect effect on H3K4me3 unresolved\"]\n    },\n    {\n      \"year\": 2015,\n      \"claim\": \"Demonstrated an in vivo hepatic requirement for bile acid and cholesterol metabolism, defining a CAR/Baf60a feedforward loop driving an activating epigenetic switch.\",\n      \"evidence\": \"Hepatocyte-specific conditional knockout mice, ChIP, expression, metabolic measurements\",\n      \"pmids\": [\"26586440\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Direct CAR-SMARCD1 contact not mapped\", \"Histone modification dynamics inferred\"]\n    },\n    {\n      \"year\": 2015,\n      \"claim\": \"Placed SMARCD1 under post-transcriptional control by miR-7 and reinforced the SMARCD1-p53 axis as a determinant of chemotherapy-induced apoptosis.\",\n      \"evidence\": \"Luciferase reporter with WT/mutant 3'UTR, Western blot, siRNA, apoptosis assays\",\n      \"pmids\": [\"26542803\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Physiological contexts where miR-7 regulates SMARCD1 unclear\", \"Single cell-line apoptosis readout\"]\n    },\n    {\n      \"year\": 2018,\n      \"claim\": \"Reconstituted a direct, SWI/SNF-independent SMARCD1-MITF contact and showed MITF uses SMARCD1 to recruit BRG1 during melanocyte differentiation.\",\n      \"evidence\": \"Co-IP, recombinant protein pull-down, siRNA, ChIP, melanin synthesis assay\",\n      \"pmids\": [\"30515787\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"SMARCD1 surface contacting the MITF bHLH not mapped\", \"Whether other bHLH factors use the same surface untested\"]\n    },\n    {\n      \"year\": 2019,\n      \"claim\": \"Linked SMARCD1 to human disease and neuronal gene programs, showing de novo mutations cause a neurodevelopmental syndrome and the Drosophila ortholog is required for long-term memory.\",\n      \"evidence\": \"Human exome sequencing; Drosophila mushroom-body RNAi, memory behavioral assay, transcriptome\",\n      \"pmids\": [\"30879640\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Mechanism by which patient mutations impair SWI/SNF function not defined\", \"Mammalian neuronal targets not identified\"]\n    },\n    {\n      \"year\": 2019,\n      \"claim\": \"Established competitive partner selection as a metabolic switch: PGC-1\\u03b1 and YB-1 compete for SMARCD1 to toggle between fatty acid oxidation and repression of ureagenesis at Cps1.\",\n      \"evidence\": \"In vivo gain/loss-of-function in mice, ChIP, Co-IP, expression, serum ammonia\",\n      \"pmids\": [\"32029232\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Structural basis of competitive binding not resolved\", \"Signals controlling the partner switch incompletely defined\"]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"Defined a pro-homeostatic vascular role: SMARCD1 recruits BRG1 to NF-\\u03baB target promoters, and its loss in VSMCs protects against aneurysm by limiting inflammation and ECM degradation.\",\n      \"evidence\": \"VSMC-specific knockout mice, RNA-seq, adenoviral overexpression, siRNA, two AAA models\",\n      \"pmids\": [\"32787523\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Direct NF-\\u03baB-SMARCD1 interaction not shown\", \"Relationship to its anti-proliferative role unresolved\"]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"Uncovered a dichotomous adipose role: SMARCD1 maintains accessibility at PPAR\\u03b3/EBF2 sites for brown-fat thermogenesis while restraining beige browning via MC2R.\",\n      \"evidence\": \"Fat-specific knockout mice, ATAC-seq, expression, adrenergic/ACTH stimulation\",\n      \"pmids\": [\"32404872\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Why brown and beige programs respond oppositely mechanistically unclear\", \"Direct PPAR\\u03b3/EBF2-SMARCD1 contacts not mapped\"]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"Provided residue-level structural detail on the p53 contact, mapping the SWIB domain interface (Ile315, Met366, Ala388, Tyr390) and revealing it is a weak (~0.3 mM) interaction.\",\n      \"evidence\": \"NMR spectroscopy, pull-down, KD measurement\",\n      \"pmids\": [\"33168186\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Functional consequence of the weak affinity in cells not tested\", \"Whether N-terminal and SWIB contacts act cooperatively unresolved\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Extended the adaptor role to dopaminergic neuroprotection, showing SMARCD1 forms a complex with Six2 to drive GDNF transcription.\",\n      \"evidence\": \"Interactome MS, Co-IP, ChIP promoter mapping, siRNA/overexpression, viability/apoptosis assays\",\n      \"pmids\": [\"34233203\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Direct vs SWI/SNF-mediated Six2 contact not distinguished\", \"In vivo relevance to Parkinsonian models not established\"]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Defined an anti-inflammatory macrophage function: SMARCD1 partners with Atf3 to keep proinflammatory genes silenced, with myeloid loss worsening obesity and insulin resistance.\",\n      \"evidence\": \"Myeloid-specific knockout and overexpression mice, ATAC-seq, CUT&Tag, transcriptome, Co-IP, metabolic phenotyping\",\n      \"pmids\": [\"35822944\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Atf3-SMARCD1 interface not mapped\", \"How SMARCD1 distinguishes repressive vs activating chromatin actions unclear\"]\n    },\n    {\n      \"year\": 2023,\n      \"claim\": \"Showed a metabolic/protective macrophage function distinct from inflammation: SMARCD1 sustains NRF1 accessibility at mitochondrial genes, with loss promoting plaque macrophage dysfunction.\",\n      \"evidence\": \"Myeloid-specific knockout mice, adenoviral rescue, NRF1-site chromatin accessibility, mitochondrial assays, atherosclerosis models\",\n      \"pmids\": [\"37768825\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Direct NRF1-SMARCD1 binding not demonstrated\", \"Coordination with the Atf3 inflammatory axis unresolved\"]\n    },\n    {\n      \"year\": 2024,\n      \"claim\": \"Established SMARCD1 as a lineage determinant in hematopoiesis, required for lymphoid specification through interaction with E2a at promoters and enhancers.\",\n      \"evidence\": \"Acute conditional deletion in adult mouse hematopoiesis, flow cytometry, ChIP/ATAC, expression profiling, Co-IP\",\n      \"pmids\": [\"39232562\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Why myeloid/erythroid lineages are spared mechanistically unclear\", \"E2a-SMARCD1 interface not mapped\"]\n    },\n    {\n      \"year\": 2025,\n      \"claim\": \"Linked SMARCD1 to \\u03b2-cell function and human disease, showing Nkx6.1 partnership controls insulin-secretion gene accessibility and that a V278M variant disrupting this contact causes glucose dysregulation.\",\n      \"evidence\": \"\\u03b2-cell-specific knockout, adenoviral restoration, ATAC-seq, ChIP, Co-IP, V278M knock-in mice, human variant, GSIS and glucose-tolerance assays\",\n      \"pmids\": [\"41052246\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Structural basis of the V278M disruption not resolved\", \"Whether V278M affects other partner interactions untested\"]\n    },\n    {\n      \"year\": 2025,\n      \"claim\": \"Provided structural definition of a druggable partner interface, showing PU.1 binds a YEATS-like domain on SMARCD1 and that small molecules can disrupt this protein-protein interaction.\",\n      \"evidence\": \"Cryo-EM/structural biology, co-crystal structures with small molecules, Co-IP, domain mapping, siRNA viability assay, HTS (preprint)\",\n      \"pmids\": [],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Peer review pending\", \"In vivo efficacy of disrupting compounds not established\"]\n    },\n    {\n      \"year\": 2026,\n      \"claim\": \"Implicated SMARCD1 in tumor angiogenesis and Sertoli-cell barrier integrity, showing it activates VEGFA transcription in ccRCC and is destabilized by CHFR-mediated ubiquitination affecting the blood-testis barrier.\",\n      \"evidence\": \"ChIP-qPCR/ATAC-qPCR/luciferase and tumor models (ccRCC); CHFR ubiquitination assay and Smarcd1+/- mice (Sertoli/BTB)\",\n      \"pmids\": [\"41872817\", \"41990863\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"VEGFA promoter occupancy mechanism single-lab\", \"CHFR-SMARCD1 ubiquitination site and broader stability regulation not defined\"]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"How SMARCD1 selects among its many competing transcription-factor partners in a given cell to specify activating versus repressive chromatin outcomes remains unresolved.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"No unifying structural/biochemical model for partner selection\", \"Mechanistic basis for context-dependent activation vs repression unknown\", \"Most partner interfaces not mapped at residue level\"]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0060090\", \"supporting_discovery_ids\": [0, 2, 4, 10, 12, 19, 20]},\n      {\"term_id\": \"GO:0140110\", \"supporting_discovery_ids\": [3, 5, 8, 22]},\n      {\"term_id\": \"GO:0042393\", \"supporting_discovery_ids\": [7]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005654\", \"supporting_discovery_ids\": [0, 2, 7, 8]},\n      {\"term_id\": \"GO:0000228\", \"supporting_discovery_ids\": [7, 14, 17]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-4839726\", \"supporting_discovery_ids\": [0, 7, 8, 14, 17, 20]},\n      {\"term_id\": \"R-HSA-74160\", \"supporting_discovery_ids\": [0, 3, 5, 12, 22]},\n      {\"term_id\": \"R-HSA-1430728\", \"supporting_discovery_ids\": [3, 8, 12, 14]},\n      {\"term_id\": \"R-HSA-1266738\", \"supporting_discovery_ids\": [7, 10, 19]},\n      {\"term_id\": \"R-HSA-168256\", \"supporting_discovery_ids\": [17, 18, 19]},\n      {\"term_id\": \"R-HSA-5357801\", \"supporting_discovery_ids\": [2, 9]}\n    ],\n    \"complexes\": [\"SWI/SNF (BAF) complex\"],\n    \"partners\": [\"SMARCA4\", \"SMARCC1\", \"SMARCC2\", \"TP53\", \"PPARGC1A\", \"YBX1\", \"SPI1\", \"NKX6-1\"],\n    \"other_free_text\": []\n  }\n}","audit_flag":null,"evaluation":{"pairwise":"win","faith_supported":7,"faith_total":7,"faith_pct":100.0}}