|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions → Protein-Modification Reactions|
|Reactions Classified By Substrate → Macromolecule Reactions → Protein-Reactions → Protein-Modification Reactions|
EC Number: 220.127.116.11
Enzymes and Genes:
|Mycobacterium tuberculosis H37Rv :||2-trans-enoyl-ACP isomerase
2-trans-enoyl-ACP isomerase : echA11
In Pathway: mycolate biosynthesis
Note that this reaction equation differs from the official Enzyme Commission reaction equation for this EC number, which can be found here .
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the Enzyme Commission system.
Mass balance status: Balanced.
Enzyme Commission Primary Name: trans-2-decenoyl-[acyl-carrier protein] isomerase
Enzyme Commission Synonyms: β-hydroxydecanoyl thioester dehydrase, trans-2-cis-3-decenoyl-ACP isomerase, trans-2,cis-3-decenoyl-ACP isomerase, trans-2-decenoyl-ACP isomerase, FabM, decenoyl-[acyl-carrier-protein] δ2-trans-δ3-cis-isomerase
Standard Gibbs Free Energy (ΔrG'° in kcal/mol): 1.55 [Latendresse13]
Enzyme Commission Summary:
While the enzyme from Escherichia coli is highly specific for the 10-carbon enoyl-ACP, the enzyme from Streptococcus pneumoniae can also use the 12-carbon enoyl-ACP as substrate in vitro but not 14- or 16-carbon enoyl-ACPs. ACP can be replaced by either CoA or N-acetylcysteamine thioesters. The cis-3-enoyl product is required to form unsaturated fatty acids, such as palmitoleic acid and cis-vaccenic acid, in dissociated (or type II) fatty-acid biosynthesis.
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