Novel intragenic deletion in OPHN1 in a family causing XLMR with cerebellar hypoplasia and distinctive facial appearance

Abstract excerpt

X-linked mental retardation (XLMR) is notably a heterogeneous condition and often poses a diagnostic challenge. The oligophrenin 1 gene (OPHN1) is a protein with a Rho-GTPase-activating domain required in the regulation of the G-protein cycle. Mutations in the OPHN1 cause XLMR with cerebellar hypoplasia and distinctive facial appearance. We report a large Saudi family of four boys and one girl affected with XLMR....

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