The Enzyme Database

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Accepted name: acyl-CoA 11-(E)-desaturase
Reaction: an acyl-CoA + 2 ferrocytochrome b5 + O2 + 2 H+ = an (11E)-enoyl-CoA + 2 ferricytochrome b5 + 2 H2O
Systematic name: acyl-CoA,ferrocytochrome b5:oxygen oxidoreductase (11,12 trans-dehydrogenating)
Comments: Involved in sex pheromone synthesis in the Lepidoptera (moths). The enzyme from the moth Spodoptera littoralis prefers 13:0 and 14:0 substrates. The product is formed by the stereospecific removal of the pro-R H at C-11 and the pro-S H at C-12. cf. EC, acyl-CoA 11-(Z)-desaturase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 199543-17-4
1.  Foster, S. P. and Roelofs, W. L. Biosynthesis of a monoene and a conjugated diene sex pheromone component of the lightbrown apple moth by 11 desaturation. Experientia 46 (1990) 269–273.
2.  Martinez, T., Fabrias, G. and Camps, F. Sex pheromone biosynthetic pathway in Spodoptera littoralis and its activation by a neurohormone. J. Biol. Chem. 265 (1990) 1381–1387. [PMID: 2295634]
3.  Navarro, I., Font, I., Fabrias, G. and Camps, F. Stereospecificity of the (E)- and (Z)-11 myristoyl desaturases in the biosynthesis of Spodoptera littoralis sex pheromone. J. Am. Chem. Soc. 119 (1997) 11335–11336.
4.  Pinilla, A., Camps, F. and Fabrias, G. Cryptoregiochemistry of the Δ11-myristoyl-CoA desaturase involved in the biosynthesis of Spodoptera littoralis sex pheromone. Biochemistry 38 (1999) 15272–15277. [DOI] [PMID: 10563812]
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