ID   1.3.1.90
DE   tRNA-dihydrouridine(20a/20b) synthase [NAD(P)(+)].
CA   (1) 5,6-dihydrouridine(20a) in tRNA + NADP(+) = uridine(20a) in tRNA +
CA   NADPH + H(+).
CA   (2) 5,6-dihydrouridine(20a) in tRNA + NAD(+) = uridine(20a) in tRNA +
CA   NADH + H(+).
CA   (3) 5,6-dihydrouridine(20b) in tRNA + NAD(+) = uridine(20b) in tRNA +
CA   NADH + H(+).
CA   (4) 5,6-dihydrouridine(20b) in tRNA + NADP(+) = uridine(20b) in tRNA +
CA   NADPH + H(+).
CC   -!- The enzyme specifically modifies uracil(20a) and uracil(20b) in tRNA.
DR   O95620, DUS4L_HUMAN;  Q32M08, DUS4L_MOUSE;  O74553, DUS4_SCHPO ;
DR   Q06063, DUS4_YEAST ;
//