>sp|A1A2H2|HIS4_BIFAA 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Bifidobacterium adolescentis GN=hisA MSLTLLPAVDVRDGKAVRLRQGESGSETDYGSPLEAARTWVESGAEWIHLVDLDAAFGTG NNRDQLRAIVKELGDKVNIEMSGGVRDDASLDAALEAGAARVNIGTAALENPDWTASVIK KYGDRVAVGLDVRGHTLAARGWVKEGGDLFETMKFLDSVGCSRYVVTDVARDGMMSGPNI ELLREVASRTDAKVTASGGISKLDDLRNIKELAELGVDAAILGKSLYARAFTLEEALEVA R