>sp|A9N2Z5|PUR7_SALPB Phosphoribosylaminoimidazole-succinocarboxamide synthase OS=Salmonella paratyphi B GN=purC MQKQAELYRGKAKTVYSTENPDLLVLEFRNDTSAGDGARIEQFDRKGMVNNKFNHFIMTK LAEAGIPTQMERLLSDTECLVKKLEMVPVECVVRNRAAGSLVKRLGVEEGMELNPPIFDL FLKNDALHDPMVNSSYCETFGWVSQENLARMKELTYKANDVLKKLFDDAGLILVDFKLEF GLYKGEVVLGDEFSPDGSRLWDKETLDKMDKDRFRQSLGGLIEAYEAVAHRLGVKLD