>sp|Q58531|GUAAB_METJA GMP synthase [glutamine-hydrolyzing] subunit B OS=Methanocaldococcus jannaschii GN=guaAB MFDPKKFIDEAVEEIKQQISDRKAIIALSGGVDSSVAAVLTHKAIGDKLTAVFVDTGLMR KGEREEVEKTFRDKLGLNLIVVDAKDRFLNALKGVTDPEEKRKIIGKLFIDVFEEIAEDI KAEVLVQGTIAPDWIETQGKIKSHHNVALPHGMVLEVVEPLRELYKDEVRLLAKELGLPD SIVYRQPFPGPGLAVRVLGEVTEEKLNICREANAIVEEEVKKANLDKDLWQYFAVVLDCK ATGVKGDEREYNWIVALRMVKSLDAMTAHVPEIPFDLLKRISKRITSEIPNVARVVFDIT DKPPATIEFE