"2,5-diamino-6-(ribosylamino)-4(3H)-pyrimidinone 5'-phosphate reductase"
"2,5-diamino-6-(ribosylamino)-4(3h)-pyrimidinone 5'-phosphate reductase"
"2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate reductase"
"2,5-diamino-6-ribosylamino-4(3h)-pyrimidinone 5'-phosphate reductase"