Syndromic X-Linked Intellectual Disability Lubs Type, also known as lubs x-linked mental retardation syndrome, is related to intellectual developmental disorder, x-linked, syndromic, lubs type and rett syndrome, and has symptoms including ataxia, constipation and muscle rigidity. An important gene associated with Syndromic X-Linked Intellectual Disability Lubs Type is MECP2 (Methyl-CpG Binding Protein 2). Affiliated tissues include prefrontal cortex and thalamus, and related phenotype is Decreased viability.