SMARCB1 is required for widespread BAF complex-mediated activation of enhancers and bivalent promoters

Loss of BAF47 destabilizes the BAF complex on chromatin, and reintroduction of BAF47 leads to enhancer activation and Polycomb opposition at bivalent promoters. BAF47 loss affects BAF and PBAF complexes, which have distinct functions in regulation of enhancers and promoters.