title: ppGpp, a single molecule.
mesh_terms: D004798:Enzymes / Q000378:metabolism; D004926:Escherichia coli / Q000378:metabolism; D006150:Guanine Nucleotides / Q000378:metabolism*; D006159:Guanosine Tetraphosphate / Q000378:metabolism* / Q000494:pharmacology; D007700:Kinetics; D009876:Operon; D012343:RNA, Transfer / Q000378:metabolism; D014158:Transcription, Genetic / Q000187:drug effects
chemical_list: D004798:Enzymes; D006150:Guanine Nucleotides; D006159:Guanosine Tetraphosphate; D012343:RNA, Transfer