BRG1-associated factor chromatin remodeling complex (BAF complex, or SWI/SNF) disorder is a specific group of developmental delay (DD)/intellectual disability (ID) syndromes with distinctive craniofacial dysmorphisms, variable congenital anomalies, and acral defects, also termed “BAF-opathies” and “SWI/SNF-related intellectual disability disorders” (SSRIDDs), such as Coffin-Siris syndrome (6, 7). This evidence concerns the gene BANF1 and Coffin-Siris syndrome.