ARID1A and cancer: In contrast to other studies,46 we do not find that PBAF complex functions are reduced or assembly is altered in ARID1A/B dual-deleted cancers; indeed, based on this study and prior work15, the cBAF assembly pathway is separate and distinct from that of PBAF and ncBAF, connected only by the fact that core modules that can no longer nucleate cBAF complexes in the absence of ARID1A/B and instead contribute to ncBAF/PBAF assembly.