ID 1.5.1.25 DE thiomorpholine-carboxylate dehydrogenase. AN ketimine reductase. CA (1) (3R)-1,4-thiomorpholine-3-carboxylate + NADP(+) = 3,4- CA dehydrothiomorpholine-3-carboxylate + 2 H(+) + NADPH. CA (2) (3R)-1,4-thiomorpholine-3-carboxylate + NAD(+) = 3,4- CA dehydrothiomorpholine-3-carboxylate + 2 H(+) + NADH. CC -!- The product is the cyclic imine of the 2-oxoacid corresponding to CC S-(2-aminoethyl)cysteine. CC -!- In the reverse direction, a number of other cyclic unsaturated CC compounds can act as substrates, more slowly. DR Q2KHX6, CRYM_BOVIN ; Q14894, CRYM_HUMAN ; Q28488, CRYM_MACFL ; DR O54983, CRYM_MOUSE ; Q9QYU4, CRYM_RAT ; //