Cell-signaling assays
First Claim
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1. A method of identifying a compound as a modulator of G-protein-linked receptor activity that generates or consumes a cyclic nucleotide through the action of a cyclase or phosphodiesterase, comprising:
- conducting a G-protein-linked-receptor mediated reaction that generates or consumes a cyclic nucleotide in the presence of a candidate compound;
contacting, in vitro, a product of the reaction with a luminescent tracer and with the opposite member of a specific binding pair to the cyclic nucleotide, wherein the tracer and the cyclic nucleotide compete for binding to the opposite member of the specific binding pair;
illuminating the tracer with polarized light, wherein the light is capable of inducing emission of polarized light from the tracer;
detecting the extent of polarization of light emitted from the tracer; and
identifying the candidate compound as a modulator of the reaction based on the extent of polarization of the emitted light.
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Abstract
Assays for detecting the presence and activity of cell-signaling components. These assays include luminescence polarization assays for detecting cell-signaling nucleotides and modulators of receptors and enzymes related to the generation and activity of such nucleotides.
12 Citations
25 Claims
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1. A method of identifying a compound as a modulator of G-protein-linked receptor activity that generates or consumes a cyclic nucleotide through the action of a cyclase or phosphodiesterase, comprising:
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conducting a G-protein-linked-receptor mediated reaction that generates or consumes a cyclic nucleotide in the presence of a candidate compound;
contacting, in vitro, a product of the reaction with a luminescent tracer and with the opposite member of a specific binding pair to the cyclic nucleotide, wherein the tracer and the cyclic nucleotide compete for binding to the opposite member of the specific binding pair;
illuminating the tracer with polarized light, wherein the light is capable of inducing emission of polarized light from the tracer;
detecting the extent of polarization of light emitted from the tracer; and
identifying the candidate compound as a modulator of the reaction based on the extent of polarization of the emitted light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification