title: Plasmids containing the trp promoters of Escherichia coli and Serratia marcescens and their use in expressing cloned genes.
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D002876:Chromosomes, Bacterial / Q000502:physiology; D003001:Cloning, Molecular; D004926:Escherichia coli / Q000235:genetics*; D005796:Genes; D005798:Genes, Bacterial; D005818:Genetic Engineering / Q000379:methods; D005822:Genetic Vectors; D009876:Operon; D010957:Plasmids; D012706:Serratia marcescens / Q000235:genetics*; D014364:Tryptophan / Q000235:genetics*
chemical_list: D014364:Tryptophan