>tr|Q9HQA1|Q9HQA1_HALSA 2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate reductase OS=Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1) OX=64091 GN=ribG PE=3 SV=1 MHVVVNAAMSADGKLSTRRREQVTLSGDADFERVDELRASVDAVMVGVGTVLADDPSLTL DDSGHVAAREERGESPHPARVVADSHARTPPDARLLDGAAETYVLVAEAEPVEHRESLEA AGATVVVAGENRVDLPSALDALESRGVDRLMVEGGGELIFSLFAEELVDELSVFVAPQLI GGRDAPTLADGDGFVAEFPTFELTGVDRLDDGVLLAYDCR