Sequence variants in other BAF complex genes are associated with other neurodevelopmental disorders including SMARCC1/2, PBRM1, ARID1A/B and SMARCA4 in ASD, PBRM1 and ARID1B in schizophrenia, SMARCB1 in Kleefstra syndrome, and ARID1A/B, SMARCA4, SMARCB1, and SMARCE1 Coffin-Siris syndrome (CSS) [19, 21]. The gene discussed is ARID1A; the disease is Kleefstra syndrome.