Genomics

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A bifunctional nucleosome binding protein mediates specialized mSWI/SNF complex targeting and activity (ChIP-seq dataset)


ABSTRACT: Here we identify and characterize a minimal domain within the SS18-SSX fusion oncoprotein hallmark to synovial sarcoma, that exhibits a high-affinity interaction with the nucleosome acidic patch. We find that this region is necessary and sufficient for nucleosome binding, mSWI/SNF (BAF) chromatin remodeling complex targeting, catalytic activity, and activation of cancer-specific gene expression. Moreover, we identify PRC1-mediated H2AUb119 as a further rheostat governing further stability and binding. Together, our results define an unexpected direct bifunctional histone detector on SSX that is responsible for disease-specific chromatin recruitment of a major family of chromatin regulatory complexes.

ORGANISM(S): Homo sapiens

PROVIDER: GSE139053 | GEO | 2020/08/04

REPOSITORIES: GEO

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