>sp|A8AY23|HIS3_STRGC Phosphoribosyl-AMP cyclohydrolase OS=Streptococcus gordonii GN=hisI MTEVKLDFQKQGGLIPAIILDHTSKEVIMLAYLNEEAYQLTRTSGQMWYWSRSRQELWHK GATSGHYQTVKKITADCDQDTLLIEVDQLGAACHTGSKSCFFHIIWDEEDSKTD