title: Identification and characterization of a self-regulated repressor of translocation of the Tn3 element.
abstract: Gene fusions that bring expression of the lacZ gene under control of transcriptional and trnaslational signals within the transposable element Tn3 have been used to study regulation of Tn3-specified proteins. A gene encoding a 21,355-Mr peptide that represses translocation of Tn3 and acts at the level oquenced; amber, missense, and cis-dominant (operator-constitutive) point mutations in this gene have been isolated and characterized.
mesh_terms: D001426:Bacterial Proteins / Q000096:biosynthesis / Q000235:genetics; D001483:Base Sequence; D004251:DNA Transposable Elements; D004926:Escherichia coli / Q000235:genetics*; D005809:Genes, Regulator; D007763:Lac Operon; D008970:Molecular Weight; D009154:Mutation; D010957:Plasmids; D012097:Repressor Proteins / Q000502:physiology*; D014157:Transcription Factors / Q000502:physiology*
chemical_list: D001426:Bacterial Proteins; D004251:DNA Transposable Elements; D012097:Repressor Proteins; D014157:Transcription Factors