Mycolic acid synthesis enzyme

Mycolic acid synthesis enzymes comprise a complex, essential group of enzymes responsible for the biosynthesis of mycolic acids—long-chain, branched fatty acids unique to mycobacterial cell walls. These include the fatty acid synthase I (FAS-I) and the multi-component fatty acid synthase II (FAS-II) systems, as well as several additional modifying, condensing, and transporting proteins (notably KasA, KasB, MabA, InhA, HadABC, FadD32, Pks13, MmpL3, and the Antigen 85 complex)[2][5][7][9]. These enzymes and their products are required for building the impermeable, waxy outer membrane of Mycobacterium tuberculosis—a structure critical for survival, virulence, growth in host macrophages, and drug resistance[2][3][7]. Because these enzymes are essential, unique to mycobacteria, and absent in humans, they are considered prime drug targets for tuberculosis therapy, with multiple existing and investigational drugs designed to inhibit specific steps in this pathway[2][9][7]. Note: The submitted target name “Putative: Mycolic acid synthesis enzymes” is correct as a functional grouping but does not refer to a single unique enzyme; rather, it encompasses a family of related enzymes involved in the same biosynthetic process. The convention here is to provide the singular canonical form (“Mycolic acid synthesis enzyme”) to support consistent downstream structuring.

Other names

Mycolic acid biosynthesis enzymeMycolic acid biosynthetic enzymeEnzymes of mycolic acid synthesis

Inhibition of fatty acid elongation (FAS-II system); Inhibition of enoyl-ACP reductase (InhA); Inhibition of polyketide synthase (Pks13); Inhibition of mycolic acid transport (MmpL3)