si_0600 De_Novo_Purine_Biosynthesis Ribose-phosphate pyrophosphokinase (EC 2.7.6.1) si_0600 De_Novo_Purine_Biosynthesis Amidophosphoribosyltransferase (EC 2.4.2.14) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylamine--glycine ligase (EC 6.3.4.13) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylglycinamide formyltransferase (EC 2.1.2.2) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylglycinamide formyltransferase 2 (EC 2.1.2.-) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylformylglycinamidine synthase, synthetase subunit (EC 6.3.5.3) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylformylglycinamidine synthase, glutamine amidotransferase subunit (EC 6.3.5.3) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylformylglycinamidine synthase, PurS subunit (EC 6.3.5.3) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylformylglycinamidine cyclo-ligase (EC 6.3.3.1) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylaminoimidazole carboxylase catalytic subunit (EC 4.1.1.21) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylaminoimidazole carboxylase ATPase subunit (EC 4.1.1.21) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylaminoimidazole-succinocarboxamide synthase (EC 6.3.2.6) si_0600 De_Novo_Purine_Biosynthesis Adenylosuccinate lyase (EC 4.3.2.2) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylaminoimidazolecarboxamide formyltransferase (EC 2.1.2.3) si_0600 De_Novo_Purine_Biosynthesis IMP cyclohydrolase (EC 3.5.4.10) si_0600 De_Novo_Purine_Biosynthesis Phosphoribosylaminoimidazolecarboxamide formyltransferase [alternate form] si_0600 De_Novo_Purine_Biosynthesis Possible subunit variant of phosphoribosylaminoimidazolecarboxamide formyltransferase [alternate form] si_0600 De_Novo_Purine_Biosynthesis Possible third subunit-variant of phosphoribosylaminoimidazolecarboxamide formyltransferase [alternate form] si_0600 De_Novo_Purine_Biosynthesis IMP cyclohydrolase (EC 3.5.4.10) [alternate form] si_0600 De_Novo_Purine_Biosynthesis YabJ, a purine regulatory protein and member of the highly conserved YjgF family si_0600 De_Novo_Purine_Biosynthesis PurR: transcription regulator associated with purine metabolism