>sp|B2V3B9|PUR7_CLOBA Phosphoribosylaminoimidazole-succinocarboxamide synthase OS=Clostridium botulinum GN=purC MEKLEMLYEGKAKQIYATDKADEVVIYYKDDATAFNGEKKGQITDKGVMNNKITSILFEQ LEKQGIKTHFIKKLNDREQLCKKVEIVPLEVIVRNVAAGSMAKRLGLEEGTKLKTTVFEF SYKDDELGDPLINSYHAVAIGAATFEEIDTILEMTAKINNILKEAFAKENINLIDFKIEF GKCADGTIVLADEISPDTCRFWDATTGEKLDKDRFRRDLGNVEDAYIEILKRISK