title: In vitro transcription of the Escherichia coli histidine operon.
mesh_terms: D003090:Coliphages; D012321:DNA-Directed RNA Polymerases; D004926:Escherichia coli; D005827:Genetics, Microbial; D006639:Histidine; D006824:Hybridization, Genetic; D008967:Molecular Biology; D009876:Operon; D014158:Transcription, Genetic
chemical_list: D006639:Histidine; D012321:DNA-Directed RNA Polymerases