>sp|A1WXS8|HIS3_HALHL Phosphoribosyl-AMP cyclohydrolase OS=Halorhodospira halophila GN=hisI MIEQNETARPGDGLDWSAVLDTLPFNSDGLLPAIAQQHDSNEVLMLAWMNRQALEETLQT GRVCYYSRSRGTLWRKGESSGQVQHLHELRLDCDGDTLLLRVDQQGPACHTGRRSCFYNV LQGNRVVVSEPPQVDPQTLYGP