25-diamino-6-(ribosylamino)-4(3H)-pyrimidinone 5′-phosphate reductase (EC 1.1.1.302 25-diamino-6-ribosylamino-4(3H)-pyrimidinone 5′-phosphate reductase MjaRED MJ0671 (gene)) is an enzyme with system name 25-diamino-6-(5-phospho-D-ribosylamino)pyrimidin-4(3H)-one:NAD(P)+ oxidoreductase.