>sp|B0R7E9|HIS1_HALS3 ATP phosphoribosyltransferase OS=Halobacterium salinarum GN=hisG MRIAVPNKGRLHDPTLALLDRAGIGVEDGADRQLYADTVDPALTVLYARAADIPEYVADG AADAGITGHDQLRESDVDCVEERLDLNYGSCRLVLAAPEDGDVTAPADLDGATVATEFPT ITRAYFADTTATPEIVEVTGATELTPHVEMADAIVDITSTGTTLRVNRLQVVDEVLSSSV RLFAHEDVHDDPKVQQVETALRSVLDAHGKRYVMLNAPADRLDDVKAVLPGLGGPTVLDV DEPGTVAVHAVVPERDVFEAISELKAVGASGILVTEIERLVD