The Enzyme Database

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EC 1.3.1.9     
Accepted name: enoyl-[acyl-carrier-protein] reductase (NADH)
Reaction: an acyl-[acyl-carrier protein] + NAD+ = a trans-2,3-dehydroacyl-[acyl-carrier protein] + NADH + H+
Other name(s): enoyl-[acyl carrier protein] reductase; enoyl-ACP reductase; NADH-enoyl acyl carrier protein reductase; NADH-specific enoyl-ACP reductase; acyl-[acyl-carrier-protein]:NAD+ oxidoreductase; fabI (gene name); inhA (gene name)
Systematic name: acyl-[acyl-carrier protein]:NAD+ oxidoreductase
Comments: The enzyme catalyses an essential step in fatty acid biosynthesis, the reduction of the 2,3-double bond in enoyl-acyl-[acyl-carrier-protein] derivatives of the elongating fatty acid moiety. The enzyme from the bacterium Escherichia coli accepts substrates with carbon chain length from 4 to 18 [3]. The enzyme from the bacterium Mycobacterium tuberculosis prefers substrates with carbon chain length from 12 to 24 carbons [4,5].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 37251-08-4
References:
1.  Shimakata, T. and Stumpf, P.K. Purification and characterizations of β-ketoacyl-[acyl-carrier-protein] reductase, β-hydroxyacyl-[acylcarrier-protein] dehydrase, and enoyl-[acyl-carrier-protein] reductase from Spinacia oleracea leaves. Arch. Biochem. Biophys. 218 (1982) 77–91. [PMID: 6756317]
2.  Weeks, G. and Wakil, S.J. Studies on the mechanism of fatty acid synthesis. 18. Preparation and general properties of the enoyl acyl carrier protein reductases from Escherichia coli. J. Biol. Chem. 243 (1968) 1180–1189. [PMID: 4384650]
3.  Yu, X., Liu, T., Zhu, F. and Khosla, C. In vitro reconstitution and steady-state analysis of the fatty acid synthase from Escherichia coli. Proc. Natl. Acad. Sci. USA 108 (2011) 18643–18648. [PMID: 22042840]
4.  Quemard, A., Sacchettini, J.C., Dessen, A., Vilcheze, C., Bittman, R., Jacobs, W.R., Jr. and Blanchard, J.S. Enzymatic characterization of the target for isoniazid in Mycobacterium tuberculosis. Biochemistry 34 (1995) 8235–8241. [PMID: 7599116]
5.  Rozwarski, D.A., Vilcheze, C., Sugantino, M., Bittman, R. and Sacchettini, J.C. Crystal structure of the Mycobacterium tuberculosis enoyl-ACP reductase, InhA, in complex with NAD+ and a C16 fatty acyl substrate. J. Biol. Chem. 274 (1999) 15582–15589. [PMID: 10336454]
[EC 1.3.1.9 created 1972, modified 2013]
 
 


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