ID 1.5.1.34 DE 6,7-dihydropteridine reductase. AN 6,7-dihydropteridine:NAD(P)H oxidoreductase. AN DHPR. AN dihydropteridine (reduced nicotinamide adenine dinucleotide) reductase. AN dihydropteridine reductase. AN dihydropteridine reductase (NADH). AN NAD(P)H2:6,7-dihydropteridine oxidoreductase. AN NADH-dihydropteridine reductase. AN NADPH-dihydropteridine reductase. AN NADPH-specific dihydropteridine reductase. CA (1) 5,6,7,8-tetrahydropteridine + NADP(+) = 6,7-dihydropteridine + H(+) + CA NADPH. CA (2) 5,6,7,8-tetrahydropteridine + NAD(+) = 6,7-dihydropteridine + H(+) + CA NADH. CC -!- The substrate is the quinonoid form of dihydropteridine. CC -!- Not identical with EC 1.5.1.3. CC -!- Formerly EC 1.6.99.7 and EC 1.6.99.10. DR Q3T0Z7, DHPR_BOVIN ; Q86A17, DHPR_DICDI ; P09417, DHPR_HUMAN ; DR Q8BVI4, DHPR_MOUSE ; Q8MJ30, DHPR_PIG ; P11348, DHPR_RAT ; DR P38489, NFSB_ECOLI ; //