Any X-linked syndromic intellectual disability in which the cause of the disease is a mutation in the TAF1 gene. The disease is MONDO_0010500 (intellectual disability, X-linked, syndromic 33). Also known as: MRXS33, TAF1 X-linked syndromic intellectual disability, X-linked intellectual disability-global development delay-facial dysmorphism-sacral caudal remnant syndrome, X-linked syndromic intellectual disability caused by mutation in TAF1, intellectual developmental disorder, X-linked syndromic 33, X-linked recessive, intellectual disability, X-linked, syndromic type 33, mental retardation, X-linked, syndromic 33, mental retardation, X-linked, syndromic type 33.