>sp|Q2N8I7|HIS4_ERYLH 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Erythrobacter litoralis GN=hisA MIVFPAIDLKGGEVVRLAEGDMDRATVYGDNPAAQAMLFAEAGAEHLHVVDLDGAFAGES RNREAVEAIVAEFPGYVQLGGGIRDATAVEGWFNLGVARIVIGSAALKDPDFVKEMAREW ENGIVVAVDARDGMIATEGWAEVSDVPVADMARRFEDAGVASLLFTDIGRDGLLKGCNID ATVELARQTDMPVIASGGVKGLDDIHVLSLHAHEGIEGVITGRALYEGRLDLAAAIAMGA RS