>sp|A0PXP9|HIS2_CLONN Phosphoribosyl-ATP pyrophosphatase OS=Clostridium novyi GN=hisE MDNIDVIEELYNVILDRKENGKENSYTNYLFEKGIDKILKKVGEETTEVIVAAKNTNKDD LIAEVCDVIYHMVVLMVEKEVKLEDIKNELNKRRKKVGNKKPERRKIENI