>sp|A8GR81|PUR7_RICRS Phosphoribosylaminoimidazole-succinocarboxamide synthase OS=Rickettsia rickettsii GN=purC MKKKLYEGSSKILYSAEEDFLLIMAFSDKAILETGEIVDISGKGVLNNNISSFLMDKLEM IGIENHFIEKINMREQLIQYVEVFPIQVIISSVACSRFVKEFGIDEGYVFDKPIIDFKVR SREFKYPIVNEYQILNFGWLTRDEIKAVKEQALRIYDFLSGLFIGVGIRLVECKLEFGRV FNGEESIIMLTDEISPDNCRLWHINSNEKLGFELLEKEPNKVFESYQLIADRLKEK