" /> Intellectual developmental disorder, X-linked, syndromic 13 - CISMeF





Preferred Label : Intellectual developmental disorder, X-linked, syndromic 13;

Symbol : MRXS13;

CISMeF acronym : MRXS13; MRX16; MRX79; PPMX;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Mental retardation with psychosis, pyramidal signs, and macroorchidism; Mental retardation, X-linked 16; MRX16; Mental retardation, X-linked 79; Mental retardation, X-linked, with spasticity; MRX79; PPMX; Mental retardation, X-linked, syndromic 13;

Description : The MECP2 gene is mutated in Rett syndrome (RTT; 312750), a severe neurodevelopmental disorder that almost always occurs in females. Males with non-RTT mutations in the MECP2 gene can demonstrate a wide variety of phenotypes, including X-linked mental retardation with spasticity and other variable features, described here, and Lubs X-linked mental retardation syndrome (MRXSL; 300260). Males with RTT-associated MECP2 mutations have neonatal severe encephalopathy that is usually lethal (300673) (Moog et al., 2003; Villard, 2007).;

Inheritance : X-linked recessive;

Molecular basis : Caused by mutation in the methyl-CpG-binding protein 2 gene (MECP2, 300005.0009).;

Prefixed ID : #300055;

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03/05/2025


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