FB2026_03 , released September 17, 2026
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Term tox-r dimerization assay ID (Ontology) MI:0370 (Molecular Interactions)
Definition This assay allow identification of interactions in the inner membrane of E. coli. by using a chimeric construct ToxR-TM-MBP composed of the N-terminal DNA binding/transcriptional activation domain of ToxR (a dimerization dependant transcription factor) fused to a transmembrane domain of interest (TM) and a monomeric periplasmic anchor (the maltose binding protein). Association of the two TM results in the ToxR-mediated activation of a reporter gene such as CAT (chloroamphenicol acetyltransferase activity). The level of CAT expression indicates the strength of TM association. CAT expression can then be tested and quantify by measuring CAM resistance with disk diffusion assay or CAT activity assays on cell-free extracts.[ PubMed:9927659 ]
Also Known As"toxcat" ; "toxcat"
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  experimental interaction detection
   |__protein complementation assay
       |__tox-r dimerization assay  1 rec.
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Is a protein complementation assay
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  • "toxcat" EXACT PSI-MI-alternate
    "toxcat" EXACT PSI-MI-short
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