Intellectual Developmental Disorder, X-Linked, Syndromic, Wu Type, also known as mrxs29, is related to syndromic x-linked intellectual disability 94. An important gene associated with Intellectual Developmental Disorder, X-Linked, Syndromic, Wu Type is GRIA3 (Glutamate Ionotropic Receptor AMPA Type Subunit 3). Affiliated tissues include eye and brain, and related phenotypes are global developmental delay and delayed speech and language development