>sp|A5INE5|HIS4_THEP1 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Thermotoga petrophila GN=hisA MLVVPAIDLFRGKVARMVKGKKENTIFYEKDPAELVKKLIEEGFTLIHVVDLSKAIENSV ENFPVLERLSEFAEHIQIGGGIRSFDYAERLRKLGYKRQIVSSKVLEDPSFLKFLKEIDV EPVFSLDTRGGKVAFKGWLAEEEIDPISLLKRLKEYGLEEIVHTEIEKDGTLQEHDFSLT RKIAIEAEVNVFAAGGISSENSLKTAQRVHRETNGLLKGVIVGRAFLEGILTVEVMKRYA R