>sp|B0T799|HIS4_CAUSK 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Caulobacter sp. GN=hisA MILYPAIDLKDGQCVRLLHGDMEKATVFNNSPADQAERFVRDGFSWLHVVDLNGAIEGKS VNTAAVQSILESISIPVQLGGGIRTLEGVEAWIEAGVSRVILGTVAVHDPDLVRKAARLW PEQIAVAVDVRDGKVAVDGWTGLSDLDAITLGKRFEDVGVAALIVTDISRDGALTGVNVE GVGELADAVSIPVIASGGVASVADIERLKARPGVEIAGAILGRSLYAGTIRPAEALTIAA A