>sp|A6VJ52|HIS4_METM7 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Methanococcus maripaludis GN=hisA MLVIPAVDMKNKKCVQLIQGNPDKKHVELDNPPEIAKKWVSEGAEMLHLVDLDGALDGKR VNDEFIEDIIKTSGVPVQIGGGIRSIEDAVYLIEKGAEKVIIGTVAVENPEIIRELSKKI GSEKIMVSLDAKDGKVVIKGWKEKTKYTPVEIGKILEEMGAGSILFTNVDSEGLLNGINI EPTKELVDNLKIPIVASGGVTTIDDLLKFKKIGVYGVVVGSAIYKNLINLKDAIEAVK