This family consist of Cyclopropane-fatty-acyl-phospholipid synthase or CFA synthase EC:2.1.1.79 this enzyme catalyse the reaction: S-adenosyl-L-methionine + phospholipid olefinic fatty acid <=> S-adenosyl-L-homocysteine + phospholipid cyclopropane fatty acid.

1: A common mechanism for the biosynthesis of methoxy and cyclopropyl mycolic acids in Mycobacterium tuberculosis. Yuan Y, Barry CE 3rd; Proc Natl Acad Sci U S A 1996;93:12828-12833. PMID:8917504

2: The biosynthesis of cyclopropanated mycolic acids in Mycobacterium tuberculosis. Identification and functional analysis of CMAS-2. George KM, Yuan Y, Sherman DR, Barry CE 3d; J Biol Chem 1995;270:27292-27298. PMID:7592990

3: A novel mycolic acid cyclopropane synthetase is required for cording, persistence, and virulence of Mycobacterium tuberculosis. Glickman MS, Cox JS, Jacobs WR Jr; Mol Cell. 2000;5:717-727. PMID:10882107