Alternative titles and symbols : MRX34; Mental retardation, X-linked 34; MRX21; Mental retardation, X-linked 21;
Description : This form of nonsyndromic X-linked mental retardation is characterized by a spectrum
of cognitive neurologic impairments or disabilities ranging from moderate mental retardation
to high-functioning autism. Males are typically severely affected, but some carrier
females may manifest milder deficits (summary by Piton et al., 2008).;
Inheritance : X-linked recessive;
Molecular basis : Caused by mutation in the IL1 receptor accessory protein-like 1 gene (IL1RAPL, 300206.0001);