Wollam, Joshua, Magomedova, Lilia, Magner, Daniel B., Shen, Yidong, Rottiers, Veerle, Motola, Daniel L., Mangelsdorf, David J., Cummins, Carolyn L. and Antebi, Adam (2011). The Rieske oxygenase DAF-36 functions as a cholesterol 7-desaturase in steroidogenic pathways governing longevity. Aging Cell, 10 (5). S. 879 - 885. MALDEN: WILEY-BLACKWELL. ISSN 1474-9718

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Abstract

Bile acids are cholesterol-derived signaling molecules that regulate mammalian metabolism through sterol-sensing nuclear receptor transcription factors. In C. elegans, bile acid-like steroids called dafachronic acids (DAs) control developmental timing and longevity by activating the nuclear receptor DAF-12. However, little is known about the biosynthesis of these molecules. Here, we show that the DAF-36/Rieske oxygenase works at the first committed step, converting cholesterol to 7-dehydrocholesterol. Its elucidation as a cholesterol 7-desaturase provides crucial biochemical evidence that such oxygenases are key steroidogenic enzymes. By controlling DA production, DAF-36 regulates DAF-12 activities for reproductive development and longevity and may illuminate related pathways in metazoans.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Wollam, JoshuaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Magomedova, LiliaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Magner, Daniel B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shen, YidongUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rottiers, VeerleUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Motola, Daniel L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mangelsdorf, David J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cummins, Carolyn L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Antebi, AdamUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-488677
DOI: 10.1111/j.1474-9726.2011.00733.x
Journal or Publication Title: Aging Cell
Volume: 10
Number: 5
Page Range: S. 879 - 885
Date: 2011
Publisher: WILEY-BLACKWELL
Place of Publication: MALDEN
ISSN: 1474-9718
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
C-ELEGANS; LIFE-SPAN; NUCLEAR RECEPTOR; REPRODUCTIVE DEVELOPMENT; CAENORHABDITIS-ELEGANS; LARVAL DEVELOPMENT; DAUER FORMATION; IDENTIFICATION; CYTOCHROME-P450; METABOLISMMultiple languages
Cell Biology; Geriatrics & GerontologyMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/48867

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