Method of assaying for RNA: protein interactions
First Claim
Patent Images
1. A method for screening a test compound for its ability to modulate a RNA:
- protein interaction comprising;
i) preparing a reporter construct comprising, in order, a Tat-responsive promoter operably linked to a sequence encoding a heterologous RNA binding site, and an indicator gene, ii) preparing an effector construct comprising a promoter operably linked to a nucleic acid sequence encoding a fusion protein comprising a Tat protein activation domain and a protein cognate of said heterologous RNA binding sites, iii) introducing said reporter construct and said effector construct into a vertebrate host cell and culturing said host cell in the presence and absence of said test compound, and iv) measuring the level of expression of said indicator gene in the presence and absence of said test compound, a difference in the level of expression of said indicator gene in the presence of said test compound, as compared to the level of expression of said indicator gene in the absence of said test compound, being indicative of a test compound that modulates interaction of said heterologous RNA binding site with said protein cognate.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates, in general to an assay method, and, in particular, to an in vivo method of assaying the interaction of RNA with proteins. The invention relates to a kit suitable for use in connection with such method.
-
Citations
21 Claims
-
1. A method for screening a test compound for its ability to modulate a RNA:
- protein interaction comprising;
i) preparing a reporter construct comprising, in order, a Tat-responsive promoter operably linked to a sequence encoding a heterologous RNA binding site, and an indicator gene, ii) preparing an effector construct comprising a promoter operably linked to a nucleic acid sequence encoding a fusion protein comprising a Tat protein activation domain and a protein cognate of said heterologous RNA binding sites, iii) introducing said reporter construct and said effector construct into a vertebrate host cell and culturing said host cell in the presence and absence of said test compound, and iv) measuring the level of expression of said indicator gene in the presence and absence of said test compound, a difference in the level of expression of said indicator gene in the presence of said test compound, as compared to the level of expression of said indicator gene in the absence of said test compound, being indicative of a test compound that modulates interaction of said heterologous RNA binding site with said protein cognate. - View Dependent Claims (2, 3, 4, 5, 6)
- protein interaction comprising;
-
7. A vertebrate host cell comprising:
-
i) a reporter construct comprising, in order, a Tat-responsive promoter functional in said host cell operably linked to a sequence encoding a heterologous RNA binding site, and an indicator gene, and ii) an effector construct comprising a promoter functional in said host cell operably linked to a nucleic acid sequence encoding a fusion protein comprising a Tat protein activation domain and a protein cognate of said heterologous RNA binding site, wherein said host cell expresses the protein product of said indicator gene. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A kit comprising a reporter construct disposed with a container means and an effector construct disposed within a container means wherein
the reporter construct comprising, in order, a Tat-responsive promoter operably linked to a site suitable for insertion of a sequence encoding a heterologous RNA binding site, and an indicator gene, and the effector construct comprising a promoter operably linked to a nucleic acid sequence encoding a Tat protein activation domain, said nucleic acid sequence comprising a site 3′ - or 5′
to said Tat protein activation domain encoding sequence, suitable for insertion of a sequence encoding a protein cognate of said heterologous RNA binding site. - View Dependent Claims (17, 18, 19, 20, 21)
- or 5′
Specification