Method for detecting reactants using fluorescent signal intensity
First Claim
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1. A method of monitoring reactions, comprising:
- providing a reaction mixture comprising first and second reactants, wherein the first and second reactants comprise reactants selected from nucleic acids, nucleotides, nucleotide analogs, nucleic acid segments and primers, wherein the first reactant comprises a first fluorescent label that produces a first signal in response to excitation illumination, and the second reactant comprises a second fluorescent label that produces a second signal in response to excitation illumination, wherein reaction of the first and second reactants is detectable by the first and second signals, respectively, wherein the first and second signals have distinct signal intensities, and wherein the first and second signals comprise peaks at the same wavelengths;
reacting one of the first and second reactants;
detecting one of the first and second signals;
identifying the first or second signal detected based upon its signal intensity; and
correlating the first or second signal identified to the reaction of the first or second reactant in the reaction mixture, respectively.
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Abstract
FRET-labeled compounds are provided for use in analytical reactions. In certain embodiments, FRET-labeled nucleotide analogs are used in place of naturally occurring nucleoside triphosphates or other analogs in analytical reactions comprising nucleic acids, for example, template-directed nucleic acid synthesis, DNA sequencing, RNA sequencing, single-base identification, hybridization, binding assays, and other analytical reactions.
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11 Claims
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1. A method of monitoring reactions, comprising:
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providing a reaction mixture comprising first and second reactants, wherein the first and second reactants comprise reactants selected from nucleic acids, nucleotides, nucleotide analogs, nucleic acid segments and primers, wherein the first reactant comprises a first fluorescent label that produces a first signal in response to excitation illumination, and the second reactant comprises a second fluorescent label that produces a second signal in response to excitation illumination, wherein reaction of the first and second reactants is detectable by the first and second signals, respectively, wherein the first and second signals have distinct signal intensities, and wherein the first and second signals comprise peaks at the same wavelengths; reacting one of the first and second reactants; detecting one of the first and second signals; identifying the first or second signal detected based upon its signal intensity; and correlating the first or second signal identified to the reaction of the first or second reactant in the reaction mixture, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification