EC 4.2.1.58 - Crotonoyl-[ACP] hydratase - Specific for short-chain length 3-hydroxyacyl-[acyl-carrier protein] derivatives C(4) to C(8).

EC 4.2.1.59 - 3-hydroxyoctanoyl-[ACP] dehydratase - Specific for 3-hydroxyacyl-[acyl-carrier protein] derivatives C(6) to C(12).

EC 4.2.1.60 - >3-hydroxydecanoyl-[ACP] - Specific for chain length of C(10).

EC 4.2.1.61 - 3-hydroxypalmitoyl-[ACP] dehydratase - Specific for 3-hydroxyacyl-[acyl-carrier protein] derivatives C(12) to C(16)