>sp|P05324|HIS4_METVA 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Methanococcus vannielii GN=hisA MLIIPAVDMKNKKCVQLIQGNPDKKHVELDNPPEIAKKWVEQGAEMLHLVNLDGAINGKR VNDEFIEETIKNSGVPVQIGGGIRSVSDALYFIEKGAEKVILGTVAIQNPKIVREISSIV GKEKVTVALDAKDGKVLIKGWTEKTDYSPVQIGKILENMGAGSILFTNVDSEGLLEGINV LPTKELVDNLNIPIIASGGVTTVEDLLKFKEIGVYAVVVGSALYKDMINLKDAILASK