BIORXIVbioRxivbioRxivCold Spring Harbor Laboratory10.1101/2025.10.13.6819372Regular Articlenew resultsmolecular biologyShifted assembly and function of mSWI/SNF family subcomplexes underlie targetable dependencies in dedifferentiated endometrial carcinomasRecombinant Anti-ARID1A antibody [EPR13501-73]bcamRRID:AB_2889973AntibodiesMouse Anti-Human ARID1B Monoclonal Antibody, Unconjugated, Clone 2D2bnovaRRID:AB_605947AntibodiesBRG1 antibody [EPR3912]bcamRRID:AB_10889900AntibodiesAnti-SMARCA2 antibody produced in rabbitigma-AldrichRRID:AB_10602406AntibodiesBAF47D BiosciencesRRID:AB_399481AntibodiesGLTSCR1 (E6I3A) Rabbit mAbell Signaling TechnologyRRID:AB_3095741AntibodiesPan Cytokeratin Monoclonal Antibody (AE1/AE3), Alexa Fluor™ 488, eBioscienceThermo Fisher ScientificRRID:AB_1834350AntibodiesRL95-2CellosaurusRRID:CVCL_0505Experimental Models: Cell LinesHEC-1-ACellosaurusRRID:CVCL_0293Experimental Models: Cell LinesHEC-265CellosaurusRRID:CVCL_2928Experimental Models: Cell LinesHEC-50BCellosaurusRRID:CVCL_2929Experimental Models: Cell LinesHEC-1-BCellosaurusRRID:CVCL_0294Experimental Models: Cell LinesDESeqhttp://bioconductor.org/packages/release/bioc/html/DESeq.htmlRRID:SCR_000154Software and AlgorithmsTrimmomatichttp://www.usadellab.org/cms/index.php?page=trimmomaticRRID:SCR_011848Software and AlgorithmsPicardhttp://broadinstitute.github.io/picard/RRID:SCR_006525Software and AlgorithmsENCODEhttp://genome.ucsc.edu/ENCODERRID:SCR_006793Software and AlgorithmsBEDToolshttps://github.com/arq5x/bedtools2RRID:SCR_006646Software and AlgorithmsSAMTOOLShttp://htslib.org/RRID:SCR_002105Software and AlgorithmsMatplotlibhttps://matplotlib.orgRRID:SCR_008624Software and AlgorithmsGraphPad Prismhttp://www.graphpad.com/RRID:SCR_002798Software and AlgorithmsHOMERhttp://homer.ucsd.edu/RRID:SCR_010881Software and AlgorithmsAtachttp://kmer.sourceforge.netRRID:SCR_015980Software and Algorithms