>sp|P65890|PUR7_SALTI Phosphoribosylaminoimidazole-succinocarboxamide synthase OS=Salmonella typhi GN=purC MQKQAELYRGKAKTVYSTENPDLLVLEFRNDTSAGDGARIEQFDRKGMVNNKFNHFIMTK LAEAGIPTQMERLLSDTECLVKKLEMVPVECVVRNRAAGSLVKRLGVEEGMELNPPIFDL FLKNDALHDPMVNSSYCETFGWVSQENLARMKELTYKANDVLKKLFDDAGLILVDFKLEF GLYKGEVVLGDEFSPDGSRLWDKETLDKMDKDRFRQSLGGLIEAYEAVAHRLGVKLD