>sp|Q64RT1|HIS4_BACFR 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Bacteroides fragilis GN=hisA MIELIPAIDIIDGKCVRLSQGDYGSKKVYNENPVEVAKEFEANGIRRLHVVDLDGAASHH VVNYRTLDLIASRTSLIIDFGGGLKSDEDLIIAFENGAQMVTGGSIAVRNPDLFCRWIDR YGSGKIILGADVKDRRIAVNGWKVESTCELFPFLKDYTQKGIEKVICTDISCDGMLAGPS LDLYKEILAEHPTLYLIASGGVSSIADIEALHEAGVPAVIFGKALYEGRITLKELQAFL