Monoallelic SH2B1 Variants in Neurodevelopmental Disorders: Phenotypic Expansion and Functional Characterization of Rare Variants
SH2B1 encodes an adaptor protein involved in metabolic regulation and body‐weight control. Although SH2B1 haploinsufficiency is a recognized contributor to obesity in 16p11.2 deletion syndrome, the relationship between rare monoallelic SH2B1 variants and neurodevelopmental disorders (NDDs) remains poorly characterized.