The enzyme, found in the moth Ostrinia furnacalis (Asian corn borer), produces a mixture of (E)- and (Z)- isomers. The products are subsequently truncated by partial beta-oxidation to a blend of 12(E/Z)-tetradec-12-enoyl-CoA, which are converted to the species-specific sex pheromones (E)- and (Z)-tetradec-12-enoyl acetates.
the enzyme is involved in the sex pheromone biosynthetic pathway. Two pathways exist, both initiate from C16:acyl-CoA, with one involving DELTA14 and DELTA9 desaturation to generate Z9,E12-14:acyl, and the other involving the chain shortening of C16:acyl-CoA to C14:acyl-CoA, followed by DELTA12 and DELTA9 desaturation to generate Z9,E12-14:acyl-CoA. Then, a final reduction and acetylation generates Z9,E12-14:OAc, overview. Desaturases introduce a double bond into the fatty acyl carbon chain, with strict regio- and stereo-selectivity