Protein
2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate reductase
Organism
Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)
Function
Catalyzes an early step in riboflavin biosynthesis, the NADPH-dependent reduction of the ribose side chain of 2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate, yielding 2,5-diamino-6-ribitylamino-4(3H)-pyrimidinone 5'-phosphate.
Similarity
Belongs to the HTP reductase family.
Sequence
MPIQPLKKELVSFLEPYMPENAGVLGEQEKPYVILTYAQSLDARIAKIKGTRTIISHQETNTMTHYLRYKFDGIMLGCGTVLVDDPGLNCKWWPDDEPKPEHFAEHSPRPIILDPNGKWKFEGSKMKTLFDSGDGKAPIVVVKKLPEVVEENVDYLVMQTNFTGKVDWHDLFIQLKSQFGLKSIMVEGGGIVINDLLQRPHLIDALVITVGATFLGSEGVEVSPLIEINLKDISWWKGTRDSVLCSRLVSHS