title: Genetic studies of the lac repressor. IX. Generation of altered proteins by the suppression of nonsence mutations.
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003062:Codon; D004926:Escherichia coli / Q000235:genetics; D009154:Mutation; D010641:Phenotype; D012097:Repressor Proteins / Q000235:genetics*; D013489:Suppression, Genetic; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D003062:Codon; D012097:Repressor Proteins; D014157:Transcription Factors