ID 1.2.1.80 DE long-chain acyl-[acyl-carrier-protein] reductase. AN fatty acyl-[acyl-carrier-protein] reductase. CA (1) a long-chain fatty aldehyde + holo-[ACP] + NADP(+) = a long-chain CA fatty acyl-[ACP] + H(+) + NADPH. CA (2) a long-chain fatty aldehyde + holo-[ACP] + NAD(+) = a long-chain CA fatty acyl-[ACP] + H(+) + NADH. CC -!- Catalyzes the reaction in the opposite direction. CC -!- This enzyme, purified from the cyanobacterium Synechococcus elongatus CC PCC 7942, catalyzes the NAD(P)H-dependent reduction of an activated CC fatty acid (acyl-[acp]) to the corresponding aldehyde. CC -!- Together with EC 4.1.99.5, it is involved in alkane biosynthesis. CC -!- The natural substrates of the enzyme are C16 to C18 activated fatty CC acids. DR Q54765, AAR_SYNE7 ; Q55687, AAR_SYNY3 ; //