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Biological Chemistry

Editor-in-Chief: Brüne, Bernhard

Editorial Board: Buchner, Johannes / Lei, Ming / Ludwig, Stephan / Sies, Helmut / Thomas, Douglas D. / Turk, Boris / Wittinghofer, Alfred

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Volume 394, Issue 7


Biochemical characterization of an S-adenosyl-l-methionine-dependent methyltransferase (Rv0469) of Mycobacterium tuberculosis

Laxman S. Meena
  • Corresponding author
  • CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research, Mall Road, Delhi 110007, India
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Puneet Chopra
  • CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research, Mall Road, Delhi 110007, India
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Ram A. Vishwakarma / Yogendra Singh
  • CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research, Mall Road, Delhi 110007, India
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Published Online: 2013-02-21 | DOI: https://doi.org/10.1515/hsz-2013-0126


Tuberculostearic acid (l0-methylstearic acid, TSA) is a major constituent of mycobacterial membrane phospholipids, and its biosynthesis involves the direct methylation of oleic acid esterified as a component of phospholipids. The methyltransferases of mycobacteria were long proposed to be involved in the synthesis of methyl-branched short-chain fatty acids, but direct experimental evidence is still lacking. In this study, we identified the methyltransferase encoded by umaA in Mycobacterium tuberculosis H37Rv as a novel S-adenosyl-l-methionine (SAM)-dependent methyltransferase capable of catalyzing the conversion of olefinic double bond of phospholipid-linked oleic acid to biologically essential TSA. Therefore, UmaA, catalyzing such modifications, offer a viable target for chemotherapeutic intervention.

Keywords: fatty acid; methyltransferase; Mycobacterium tuberculosis; oleic acid; S-adenosyl-l-methionine; tuberculostearic acid


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About the article

Corresponding author: Laxman S. Meena, CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research, Mall Road, Delhi 110007, India

Received: 2013-01-23

Accepted: 2013-02-18

Published Online: 2013-02-21

Published in Print: 2013-07-01

Citation Information: Biological Chemistry, Volume 394, Issue 7, Pages 871–877, ISSN (Online) 1437-4315, ISSN (Print) 1431-6730, DOI: https://doi.org/10.1515/hsz-2013-0126.

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