D-3-Hydroxyacyl-ACP is an intermediate in fatty acid biosynthesis. It participates in the reactions as follows (Figure 18.27):
-Ketoacyl-ACP + NADPH + H+ <=> D-3-Hydroxyacyl-ACP + NADP+ (catalyzed by
-Ketoacyl-ACP Reductase)
D-3-Hydroxyacyl-ACP <=> Trans-
2-enoyl-ACP + H2O (catalyzed by 3-Hydroxylacyl-ACP Dehydrogenase)