SMARCA2 (SWI/SNF-Related, Matrix-Associated, Actin-Dependent Regulator of Chromatin, Subfamily A, Member 2): SMARCA2 is a core component of the SWI/SNF chromatin remodeling complex, playing a pivotal role in regulating gene expression by altering chromatin structure. Mutations in SMARCA2 are associated with disorders like Nicolaides-Baraitser syndrome, characterized by intellectual disability and sparse hair. Its function is critical for proper gene regulation and development....