title: Discrimination between purine and pyrimidine base at the 3' terminus of the tRNA molecule by the stringent factor system from Escherichia coli.
mesh_terms: D001426:Bacterial Proteins / Q000378:metabolism*; D004926:Escherichia coli / Q000378:metabolism*; D006150:Guanine Nucleotides / Q000096:biosynthesis*; D006158:Guanosine Pentaphosphate / Q000096:biosynthesis*; D006159:Guanosine Tetraphosphate / Q000096:biosynthesis*; D007700:Kinetics; D012316:RNA Nucleotidyltransferases / Q000378:metabolism; D012343:RNA, Transfer
chemical_list: D001426:Bacterial Proteins; D006150:Guanine Nucleotides; D006159:Guanosine Tetraphosphate; D006158:Guanosine Pentaphosphate; D012343:RNA, Transfer; D012316:RNA Nucleotidyltransferases