>sp|Q0A5D4|HIS2_ALKEH Phosphoribosyl-ATP pyrophosphatase OS=Alkalilimnicola ehrlichii GN=hisE MSEQRDILKALAEVLEERRQADPATSYVAKLHHKGLDAILKKVGEEATEAVVAAKGGDRS QVIYETADLWFHSLIMLSACDAGPDDVLAELERRFGLSGIDEKAARNGQ