>sp|Q03K83|HIS3_STRTD Phosphoribosyl-AMP cyclohydrolase OS=Streptococcus thermophilus GN=hisI MTEVKLDFDKQGGLVPVIVTDYKTGQVLMLAYMNEVSYQLTLETKQMHYWSRSRNELWHK GATSGHFQHVKSIKTDCDWDTLLIAVEQEGAACHTGAYSCFFTDIYDDNQDR