>sp|A7NN50|HIS4_ROSCS 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase OS=Roseiflexus castenholzii GN=hisA MEIIPAIDLKDGRCVRLYQGDFQQVTVYGDDPVAIAQHWFEQGAPRLHLVDLDGARSGQP VHTDIIRAIVRSFGAPVQLGGGLRSIEAVERALELGVQRVVLGTAAVEHPDMIAHLVAQF GDAIAVAIDARNGMAATAGWTETAAMSAVDLLERMVTLGVRRVIYTDISRDGTLSEPNIA ATGALVRPDGPAIIASGGISTLDHLRRLADVGVEGAIVGRALYTGDLSLREALAAFQ