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ENZYME entry: EC

Accepted Name
2,5-diamino-6-(ribosylamino)-4(3H)-pyrimidinone 5'-phosphate reductase.
Alternative Name(s)
2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate reductase.
Reaction catalysed
2,5-diamino-6-(5-phospho-D-ribitylamino)pyrimidin-4(3H)-one + NAD(P)(+) <=> 2,5-diamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one + NAD(P)H
  • The reaction proceeds in the opposite direction.
  • A step in riboflavin biosynthesis, NADPH and NADH function equally well as reductant.
  • Differs from EC since it does not catalyze the reduction of 5-amino-6-ribosylaminopyrimidine-2,4(1H,3H)-dione 5'-phosphate.
PRIAM enzyme-specific profiles1.1.1.302
KEGG Ligand Database for Enzyme Nomenclature1.1.1.302
IUBMB Enzyme Nomenclature1.1.1.302
MEDLINEFind literature relating to
O66747, RIB7_AQUAE;  O28272, RIB7_ARCFU;  Q757H6, RIB7_ASHGO;  
Q9P4B8, RIB7_KLUMA;  Q58085, RIB7_METJA;  O26337, RIB7_METTH;  
Q9P7L3, RIB7_SCHPO;  P95872, RIB7_SULSO;  P33312, RIB7_YEAST;  

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