ID 1.1.1.104 DE 4-oxoproline reductase. AN cis-hydroxy-L-proline oxidase. CA cis-4-hydroxy-L-proline + NAD(+) = 4-oxo-L-proline + H(+) + NADH. CC -!- The enzyme, isolated from animals, is specific for 4-oxo-L-proline CC and cis-4-hydroxy-L-proline. CC -!- It has no activity with trans-4-hydroxy-L-proline. DR C1C4R8, DHRS6_AQUCT; Q3T046, DHRS6_BOVIN; Q561X9, DHRS6_DANRE; DR Q9BUT1, DHRS6_HUMAN; Q8JZV9, DHRS6_MOUSE; D4A1J4, DHRS6_RAT ; DR Q3KPT7, DHRS6_XENLA; //