A genetic system to study the in vivo role of transcriptional regulators in Escherichia coli

Gene. 1992 Jul 1;116(1):75-80. doi: 10.1016/0378-1119(92)90631-x.

Abstract

A genetic system for studying in vivo the interactions between a transcriptional regulatory protein and its target DNA has been developed for Escherichia coli. It is composed of two compatible plasmids: one high-copy-number promoter-probe vector, and one low-copy-number vector in which the gene encoding the desired protein is cloned under the control of an inducible promoter. The system was successfully tested for its specificity and for dosage analysis by using a combination of the plasmid pLS1-encoded RepA repressor and its target DNA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacterial Proteins / genetics
  • Cloning, Molecular
  • DNA Helicases*
  • DNA Probes / genetics
  • DNA Replication / genetics
  • DNA-Binding Proteins / genetics*
  • Escherichia coli / genetics*
  • Genetic Vectors / genetics
  • Plasmids / genetics*
  • Promoter Regions, Genetic / genetics
  • Proteins*
  • Recombinant Proteins / genetics*
  • Trans-Activators*
  • Transcription Factors / genetics*
  • Transcription, Genetic / genetics

Substances

  • Bacterial Proteins
  • DNA Probes
  • DNA-Binding Proteins
  • Proteins
  • Recombinant Proteins
  • Trans-Activators
  • Transcription Factors
  • replication initiator protein
  • DNA Helicases