title: Formation of guanosine tetraphosphate (magic spot I) in homologous and heterologous systems.
mesh_terms: D000227:Adenine Nucleotides / Q000494:pharmacology; D000818:Animals; D001921:Brain; D002250:Carbon Radioisotopes; D002417:Cattle; D000242:Cyclic AMP / Q000494:pharmacology; D003600:Cytosol; D004926:Escherichia coli / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D006150:Guanine Nucleotides / Q000096:biosynthesis*; D006824:Hybridization, Genetic; D008715:Methionine; D008928:Mitochondria; D009928:Organ Specificity; D010649:Phenylalanine; D011072:Poly U; D012343:RNA, Transfer; D012156:Reticulocytes; D012270:Ribosomes / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000166:cytology; D013045:Species Specificity; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000227:Adenine Nucleotides; D002250:Carbon Radioisotopes; D006150:Guanine Nucleotides; D011072:Poly U; D010649:Phenylalanine; D012343:RNA, Transfer; D008715:Methionine; D000242:Cyclic AMP