Protein partner screening assays and uses thereof

Details Protein partner screening assays and uses thereof Protein partner screening assays and uses thereof

C - Chemistry, Metallurgy

12

Q

C12Q 1/68 (2006.01) C12Q 1/34 (2006.01) G01N 33/574 (2006.01)

Patent

CA 2081807

Abstract A rapid, simple and inexpensive method to screen and classify proteins as partners of dimeric proteins is described. The method utilizes fusion protein constructs containing a DNA binding domain and complementary dimerization domains from a different protein. According to the method of the invention, protein partner heterodimer formation is detected by the ability of the protein partner to displace formation of DNA binding domain homodimers, and thus reveal a phenotypic change in a bacterial host which was dependent upon maintenance of the DNA binding domain homodimer configuration. The method of the invention may further be used to identify compounds of interest which inhibit such heterodimer formation, and especially to identify compounds which prevent heterodimer formation and activation of oncogenic transcriptional regulatory proteins. A190-03.WP5 102892

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