ID 1.3.1.91 DE tRNA-dihydrouridine(20) synthase [NAD(P)(+)]. AN tRNA-dihydrouridine synthase 2. CA (1) 5,6-dihydrouridine(20) in tRNA + NADP(+) = H(+) + NADPH + uridine(20) CA in tRNA. CA (2) 5,6-dihydrouridine(20) in tRNA + NAD(+) = H(+) + NADH + uridine(20) CA in tRNA. CC -!- The enzyme specifically modifies uracil(20) in tRNA. DR Q9NX74, DUS2L_HUMAN; Q9D7B1, DUS2L_MOUSE; O74731, DUS2_SCHPO ; DR P53720, DUS2_YEAST ; P72872, DUSAL_SYNY3; Q5SMC7, DUSAL_THET8; DR Q8X5V6, DUSA_ECO57 ; Q8FB30, DUSA_ECOL6 ; P32695, DUSA_ECOLI ; DR Q7VNV2, DUSA_HAEDU ; P44794, DUSA_HAEIN ; Q9CL29, DUSA_PASMU ; DR Q9I048, DUSA_PSEAE ; Q88KX0, DUSA_PSEPK ; Q884G7, DUSA_PSESM ; DR Q8Z1T1, DUSA_SALTI ; Q8ZKH4, DUSA_SALTY ; Q8EAJ0, DUSA_SHEON ; DR Q7UBC5, DUSA_SHIFL ; Q9KUX9, DUSA_VIBCH ; Q87L85, DUSA_VIBPA ; DR Q8CWK7, DUSA_VIBVU ; Q8PFF8, DUSA_XANAC ; Q8P3X4, DUSA_XANCP ; DR Q9PGB5, DUSA_XYLFA ; Q87AY2, DUSA_XYLFT ; Q8ZJ14, DUSA_YERPE ; //