title: Properties of a collection of Escherichia coli RNA polymerase mutants.
mesh_terms: D003062:Codon; D012321:DNA-Directed RNA Polymerases / Q000235:genetics*; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics*; D005796:Genes; D009154:Mutation; D013045:Species Specificity
chemical_list: D003062:Codon; D012321:DNA-Directed RNA Polymerases