ARID1B and Coffin-Siris syndrome: The mild form of CSS is caused by either mutations in the ATPase subunit ARID1B (OMIM# 614556) [283], or by pathogenic changes in other chromatin remodelling proteins with no direct interaction with SWI/SNF complex, including SOX11 (OMIM# 600898) [256] and DPF2 (OMIM# 601671) [284].