>tr|M9Y891|M9Y891_AZOVI 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Azotobacter vinelandii CA6 GN=hisA MLIIPAIDLKDGACVRLRQGRMDDSTVFSDDPVAMAARWVEAGCRRLHLVDLNGAFEGQP INGEVVTAIARRYPDLPIQIGGGIRSLETIEHYVKAGVGYVIIGTKAVKQPEFVGEACRA FPGKVIVGLDARDGFVATDGWAEVSSVQVVDLARRFEADGVSAIVYTDIAKDGMMQGCNV EATAALAAATRIPVIASGGIHDLGDIRKLLDARAPGIVGAITGRAIYEGTLDVAEAQALC DGFKG