page_title: 6,7-dihydropteridine reductase
hierarchical_section_title: 6,7-dihydropteridine reductase
caption_attribution_description: English: Dihydropteridine reductase dimer + 2 NAD (green), Human
context_page_description: In enzymology, a 6,7-dihydropteridine reductase is an enzyme that catalyzes the chemical reaction
  a 5,6,7,8-tetrahydropteridine + NAD+ a 6,7-dihydropteridine + NADH + H⁺
  The 3 substrates of this enzyme are a 5,6,7,8-tetrahydropteridine, NAD⁺, and NADP⁺, whereas its 4 products are a 6,7-dihydropteridine, NADH, NADPH, and H⁺.
  This enzyme participates in folate biosynthesis.
context_section_description: In enzymology, a 6,7-dihydropteridine reductase (EC 1.5.1.34, also Dihydrobiopterin reductase) is an enzyme that catalyzes the chemical reaction
  a 5,6,7,8-tetrahydropteridine + NAD(P)+  a 6,7-dihydropteridine + NAD(P)H + H⁺
  The 3 substrates of this enzyme are a 5,6,7,8-tetrahydropteridine (Tetrahydrobiopterin), NAD⁺, and NADP⁺, whereas its 4 products are a 6,7-dihydropteridine (Dihydrobiopterin), NADH, NADPH, and H⁺.
  This enzyme participates in folate biosynthesis.
caption: Dihydropteridine reductase dimer, Human
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