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

Unit on Molecular Dysmorphology, Heritable Disorders Branch, Department of Health and Human Services, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
Molecular Genetics and Metabolism (Impact Factor: 2.83). 03/2005; 84(2):112-26. DOI: 10.1016/j.ymgme.2004.09.017
Source: PubMed

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.

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