Biosynthesis of coenzyme Q in microorganisms

Raman, TS and Sharma, BVS and Jayaraman, J and Ramasarma, T (1965) Biosynthesis of coenzyme Q in microorganisms. In: Archives of Biochemistry and Biophysics, 110 (1). pp. 75-84.

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Abstract

Incorporation of mevalonate-2-C14, acetate-1-C14, and formate-C14 into the lipids of microorganisms was studied. In the case of four bacteria tested—Agrobacterium tumefaciens, Azotobacter vinelandii, Escherichia coli, and a Pseudomonas species—the various homologues of coenzyme Q present were not labeled with any of the tracers used, although significant amounts of radioactivity were present in the lipids. Both acetate and mevalonate were incorporated into coenzyme Q and sterol of the moulds, Aspergillus niger, Neurospora crassa, Penicillium chrysogenum, and Gibberella fujickuroi, and a yeast, Torulopsis utilis. Mevalonate was incorporated into the side chain but not the ring, whereas acetate was incorporated into both. It appears that the mevalonate pathway for the synthesis of coenzyme Q is operative only in those organisms which also contain other isoprene compounds such as sterol and carotene.

Item Type:	Journal Article
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Biological Sciences > Biochemistry
Date Deposited:	19 May 2010 09:38
Last Modified:	19 Sep 2010 06:07
URI:	http://eprints.iisc.ernet.in/id/eprint/27935

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