1.3.1.44 FAD - 286051 1.3.1.44 flavin FAD, riboflavin and FMN increase activity 390806 1.3.1.44 FMN - 286051 1.3.1.44 NAD+ - 711734 1.3.1.44 NADH - 286051, 390810, 711734, 723850, 724240, 724351, 740212 1.3.1.44 NADH about two-to threefold higher specific activites with NADH over NADPH 656287 1.3.1.44 NADH dependent 686722 1.3.1.44 NADH dependent on 657270 1.3.1.44 NADH higher activity toward NADH than NADPH 724240 1.3.1.44 NADH preferred cofactor with substrates of higher chain length 390755 1.3.1.44 NADH preferred, 2-3fold higher activity compared to NADPH 656287 1.3.1.44 NADH sole electron donor 390806, 390807, 390808 1.3.1.44 NADP+ - 711734 1.3.1.44 NADPH - 390755, 711734 1.3.1.44 NADPH 2-3fold lower activity compared to the preferred NADH 656287 1.3.1.44 NADPH about two-to threefold higher specific activites with NADH over NADPH 656287 1.3.1.44 NADPH enzyme utilizes NADH and NADPH depending on chain length, with NADPH a C-6 substrate is preferred, with NADH a C-8 substrate is preferred 390810 1.3.1.44 NADPH NADH is preferred over NADPH 724351 1.3.1.44 NADPH rat hepatic microsomal trans-2-enoyl-CoA reductases with cofactor requirement (NADH or NADPH) depending on chain length of substrates are characterized. Since no cis-2-enoyl-CoA substances are tested as substrates a classification according to EC 1.3.1.8, EC 1.3.1.38 or EC 1.3.1.44 is impossible 390754