>sp|Q5SJ49|HIS4_THET8 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Thermus thermophilus GN=hisA MRLIPAVDLKSGKAVRLYEGDPARETPYGDPVEAALRFQEEGATLLHLVDLDRALGTGEN REVVRRVAASLSIPFQLAGGIRSLEALQEALSLGASRAVVGTVAVKDPGLLARMLEAVGP DRLAVALDARGLEVVVSGWQEAVSASALDLLRAWAEMGVRTLLYTDVRRDGTLLGLDREV VARVRAAWPYELIVGGGIASPEDLHLLQALGVDGALVGKALYEGRIRLKEASWRS