>sp|B6IWI6|HIS4_RHOCS 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Rhodospirillum centenum (strain ATCC 51521 / SW) OX=414684 GN=hisA PE=3 SV=1 MNIYPAIDLKDGQAVRLLRGDMDQATVFNPDPAAQAAAFQDQGFRWLHLVDLNGAFAGRP VNADAVSRILERVTIPVQLGGGIRDMATIEEWLGRGIRRVILGTVALRDPDLVKDACRAF PGRICVGIDARDGHVAVEGWATTSDVRALDLALRFEDAGVAAIVYTDINRDGAMGGVNVE ATADLAVHLTTPVIASGGVHALSDLLALKAEAETGIEGVIVGRALYDGRIDPRQALALTA GPEDARC