3beta-hydroxysterol Delta7-reductase and the Smith-Lemli-Opitz syndrome

Mol Genet Metab. 2005 Feb;84(2):112-26. doi: 10.1016/j.ymgme.2004.09.017. Epub 2004 Dec 19.

Abstract

In the final step of cholesterol synthesis, 7-dehydrocholesterol reductase (DHCR7) reduces the double bond at C7-8 of 7-dehydrocholesterol to yield cholesterol. Mutations of DHCR7 cause Smith-Lemli-Opitz syndrome (SLOS). Over 100 different mutations of DHCR7 have been identified in SLOS patients. SLOS is a classical multiple malformation, mental retardation syndrome, and was the first human malformation syndrome shown to result from an inborn error of cholesterol synthesis. This paper reviews the biochemical, molecular, and mutational aspects of DHCR7.

Publication types

  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Amino Acid Sequence
  • Humans
  • Molecular Sequence Data
  • Mutation
  • Oxidoreductases Acting on CH-CH Group Donors / genetics*
  • Sequence Homology, Amino Acid
  • Smith-Lemli-Opitz Syndrome / enzymology*
  • Smith-Lemli-Opitz Syndrome / genetics

Substances

  • Oxidoreductases Acting on CH-CH Group Donors
  • 7-dehydrocholesterol reductase

Associated data

  • OMIM/251170
  • OMIM/260920