Stereochemistry of Δ<sup>4</sup>dehydrogenation catalyzed by an ivy (Hedera helix) Δ<sup>9</sup>desaturase homolog
作者:Amy E. Tremblay、Edward Whittle、Peter H. Buist、John Shanklin
DOI:10.1039/b617942h
日期:——
The stereochemistry of palmitoyl-ACP Delta(4) desaturase-mediated dehydrogenation has been examined by tracking the fate of deuterium atoms located on stereospecifically monodeuterated substrates-(4S)- and (4R)-[4-(2)H(1)]-palmitoyl-ACP and (5S)- and (5R)-[5-(2)H(1)]-palmitoyl-ACP. It was found that the introduction of the (Z)-double bond between C-4 and C-5 of a palmitoyl substrate occurs with pro-R