>sp|P58791|HIS4_PYRFU 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Pyrococcus furiosus GN=hisA MKFRIYPAIDIMDGKVVRLYKGKKDEVKVYGDPLKFAEKFSEYVDKIHIVDLDGAFSGKP QNLDIVEKIIRDVGVRVQIGGGFRDYESIKKAYDIGVENVIIGTKALDISFLERITSEFE GITVSLDSKGGKIFTKGWIEEESLLVEDAYKMLRKFVNRFVYTVIDRDGTLLGIEKIKRF WGDEEFIYAGGVATPTDIIQLAEIGFSGVIIGKALYEGTISLEEALEVAKSVGKKNYSSS