Homozygous HOXA1 mutations disrupt human brainstem, inner ear, cardiovascular and cognitive development

Nat Genet. 2005 Oct;37(10):1035-7. doi: 10.1038/ng1636. Epub 2005 Sep 11.

Abstract

We identified homozygous truncating mutations in HOXA1 in three genetically isolated human populations. The resulting phenotype includes horizontal gaze abnormalities, deafness, facial weakness, hypoventilation, vascular malformations of the internal carotid arteries and cardiac outflow tract, mental retardation and autism spectrum disorder. This is the first report to our knowledge of viable homozygous truncating mutations in any human HOX gene and of a mendelian disorder resulting from mutations in a human HOX gene critical for development of the central nervous system.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Autistic Disorder / ethnology
  • Autistic Disorder / genetics*
  • Brain Stem / growth & development*
  • Cardiovascular Abnormalities / ethnology
  • Cardiovascular Abnormalities / genetics*
  • Carotid Artery, Internal / abnormalities
  • Carotid Artery, Internal / growth & development
  • Cognition Disorders / genetics
  • Deafness / ethnology
  • Deafness / genetics*
  • Ear, Inner / growth & development
  • Homeodomain Proteins / genetics*
  • Homozygote
  • Humans
  • Intellectual Disability / ethnology
  • Intellectual Disability / genetics*
  • Ocular Motility Disorders / ethnology
  • Ocular Motility Disorders / genetics*
  • Saudi Arabia
  • Syndrome
  • Transcription Factors / genetics*
  • Turkey

Substances

  • Homeodomain Proteins
  • Transcription Factors
  • homeobox A1 protein