>sp|A9A6L5|HIS4_METM6 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Methanococcus maripaludis GN=hisA MLVIPAVDMKNKKCVQLIQGNPDKKHVELDNPPEIAKKWVNEGAEMLHLVDLDGALDGKR VNDEFIEEIIKTSGVPVQIGGGIRSIEDAVYLVEKGAKKVIIGTVAVENPEIIKELSEKI GSEKIMVSLDAKNGKVVIKGWKEKTKYTPVEIGKILEEMGAGSILFTNVDSEGLLNGINI EPTKELVDNLKIPIVASGGVTTIDDLLKFKEIGVYGVVVGSAIYKNLINLKDAIEAVK