title: A bacterial two-hybrid system based on transcription activation.
abstract: We describe the use of a bacterial two-hybrid system for the study of protein-protein interactions in Escherichia coli. This system is based on transcription activation and involves the synthesis of two fusion proteins within the bacterial cell whose interaction stimulates transcription of a reporter gene. Specifically, one of the fusion proteins can function as a transcription activator when its interaction partner is fused to a subunit of the bacterial RNA polymerase. This bacterial two-hybrid system has been used to study a number of interacting proteins from both prokaryotes and eukaryotes, and can be used to find interacting proteins from complex protein libraries.
authors.affiliation: Division of Infectious Diseases, Children's Hospital, Harvard Medical School, Boston, MA, USA.
authors.forename: Simon L
authors.initials: SL
authors.lastname: Dove
authors.forename: Ann
authors.initials: A
authors.lastname: Hochschild
mesh_terms: D012321:DNA-Directed RNA Polymerases / Q000737:chemistry / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics*; D006801:Humans; D025941:Protein Interaction Mapping / Q000379:methods*; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism; D015533:Transcriptional Activation; D020798:Two-Hybrid System Techniques
chemical_list: D011993:Recombinant Fusion Proteins; D012321:DNA-Directed RNA Polymerases