| Synonyms |
3-ketoacyl-ACP synthase, 3-ketoacyl-acyl carrier protein synthase, 3-oxoacyl synthase, 3-oxoacyl-[acyl-carrier-protein] synthase, acyl-malonyl(acyl-carrier-protein)-condensing enzyme, beta-ketoacyl ACP synthase I, beta-ketoacyl acyl carrier protein synthase, beta-ketoacyl acyl carrier protein synthase I, beta-ketoacyl synthase, beta-ketoacyl synthetase, beta-ketoacyl [ACP] synthase, beta-ketoacyl-ACP synthase, beta-ketoacyl-ACP synthase I, beta-ketoacyl-ACP synthetase, beta-ketoacyl-ACP-synthase, beta-ketoacyl-AcpM synthase A, beta-ketoacyl-acyl carrier protein synthase I, beta-ketoacyl-acyl carrier protein synthetase, beta-ketoacyl-CoA synthase-I, beta-ketoacyl-[acyl carrier protein (ACP)] synthase III, beta-ketoacyl-[acyl carrier protein] synthase, beta-ketoacyl-[acyl carrier protein] synthase I, beta-ketoacyl-[acyl-carrier-protein] synthase I, beta-ketoacylsynthase, condensing enzyme, Cys-His-His-type beta-ketoacyl-acyl carrier protein synthase, elongase, elongating beta-ketoacyl-acyl carrier protein synthase, FabB, FabBF, FabH, fatty acid condensing enzyme, KAS, KAS I, KasA, KasI, KCSI, More, OsKASI, synthase, 3-oxoacyl-[acyl-carrier-protein] |
| Comments |
This enzyme is responsible for the chain-elongation step of dissociated (type II) fatty-acid biosynthesis, i.e. the addition of two C atoms to the fatty-acid chain. Escherichia coli mutants that lack this enzyme are deficient in unsaturated fatty acids. The enzyme can use fatty acyl thioesters of ACP (C2 to C16) as substrates, as well as fatty acyl thioesters of Co-A (C4 to C16) [4]. The substrate specificity is very similar to that of EC 2.3.1.179, ¦Â-ketoacyl-ACP synthase II, with the exception that the latter enzyme is far more active with palmitoleoyl-ACP (C16¦¤9) as substrate, allowing the organism to regulate its fatty-acid composition with changes in temperature [4,5]. |
![Example Structure of beta-ketoacyl-[acyl-carrier-protein] synthase I EC#: 2.3.1.41](/wp-content/uploads/enzyme-structure/2.3.1.41.jpg)