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InterPro: IPR003333 Cyclopropane-fatty-acyl-phospholipid synthase

Protein matchesHelp
UniProtKB
Matches:
1837 proteins
AccessionHelp IPR003333 CMAS
TypeHelp Family
SignaturesHelp
GO Term annotationHelp
Process GO:0008610 lipid biosynthetic process
Function GO:0008825 cyclopropane-fatty-acyl-phospholipid synthase activity
InterPro annotation
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AbstractHelp

Methyl transfer from the ubiquitous S-adenosyl-L-methionine (AdoMet) to either nitrogen, oxygen or carbon atoms is frequently employed in diverse organisms ranging from bacteria to plants and mammals. The reaction is catalyzed by methyltransferases (Mtases) and modifies DNA, RNA, proteins and small molecules, such as catechol for regulatory purposes. The various aspects of the role of DNA methylation in prokaryotic restriction-modification systems and in a number of cellular processes in eukaryotes including gene regulation and differentiation is well documented.

This entry represents cyclopropane-fatty-acyl-phospholipid synthase that is slosely related to methyltransferases.

Cyclopropane-fatty-acyl-phospholipid synthase or CFA synthase EC:2.1.1.79 catalyses the reaction:

S-adenosyl-L-methionine + phospholipid olefinic fatty acid -> S-adenosyl-L-homocysteine + phospholipid cyclopropane fatty acid.

The major mycolic acid produced by Mycobacterium tuberculosis contains two cis-cyclopropanes in the meromycolate chain. Cyclopropanation may contribute to the structural integrity of the cell wall complex [1].

Structural linksHelp
SCOP: c.66.1.18
CATH: 3.40.50.150
Database linksHelp
Enzyme: EC:2.1.1
PANDIT: PF02353
Blocks: IPB003333
Pfam Clan: CL0102.19

Taxonomic coverageHelp

Example proteinsHelp
P0A5P0 Cyclopropane-fatty-acyl-phospholipid synthase 2

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Example Proteins Key


InterPro entry accession number/name and structure databases Colour code
IPR003333 Cyclopropane-fatty-acyl-phospholipid synthase
PDB Chain
ModBase
CATH Domain
SCOP Domain

PublicationsHelp
1. George KM, Yuan Y, Sherman DR, Barry CE 3rd.
The biosynthesis of cyclopropanated mycolic acids in Mycobacterium tuberculosis. Identification and functional analysis of CMAS-2.
J. Biol. Chem. 270 27292-8 1995 [PubMed: 7592990]
http://dx.doi.org/10.1074/jbc.270.45.27292

Additional ReadingHelp
Boissier F, Bardou F, Guillet V, Uttenweiler-Joseph S, Daffe M, Quemard A, Mourey L.
Further insight into S-adenosylmethionine-dependent methyltransferases: structural characterization of Hma, an enzyme essential for the biosynthesis of oxygenated mycolic acids in Mycobacterium tuberculosis.
J. Biol. Chem. 281 2006 4434-45 [PubMed: 16356931]
http://dx.doi.org/10.1074/jbc.M510250200
Huang CC, Smith CV, Glickman MS, Jacobs WR Jr, Sacchettini JC.
Crystal structures of mycolic acid cyclopropane synthases from Mycobacterium tuberculosis.
J. Biol. Chem. 277 2002 11559-69 [PubMed: 11756461]
http://dx.doi.org/10.1074/jbc.M111698200
Yuan Y, Barry CE 3rd.
A common mechanism for the biosynthesis of methoxy and cyclopropyl mycolic acids in Mycobacterium tuberculosis.
Proc. Natl. Acad. Sci. U.S.A. 93 1996 12828-33 [PubMed: 8917504]
http://dx.doi.org/10.1073/pnas.93.23.12828
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