>sp|P62356|HIS4_THET2 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Thermus thermophilus GN=hisA MRLIPAVDLKSGKAVRLYEGDPARETPYGDPVEAALRFQEEGATLLHLVDLDRALGTGEN REAVRRVAASLSIPFQLAGGIRSLEALQEALSLGASRAVVGTVAVKDPGLLARMLEAVGP DRLAVALDARGLEVVVSGWQEAASASALDLLRAWAEMGVRTLLYTDVRRDGTLLGLDREV VARVRAAWPHELIVGGGIASPEDLHLLQALGVDGALIGKALYEGRIRLKEAVWRS