Assay methods and systems
First Claim
1. A method of determining whether a fluorescently labeled compound is phosphorylated, the method comprising:
- providing the compound in a mixture with a polymer having multivalent metal cations associated therewith which polymer is sufficiently large to induce a shift in an amount of polarized fluorescence emitted from the mixture when the multivalent metal cations bind the polymer to the compound; and
monitoring the amount of polarized fluorescence emitted from the mixture to determine whether the multivalent metal cations bind the polymer to the compound, such binding being indicative that the compound is phosphorylated.
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Abstract
Methods, systems, kits for carrying out a wide variety of different assays that comprise providing a first reagent mixture which comprises a first reagent having a fluorescent label. A second reagent is introduced into the first reagent mixture to produce a second reagent mixture, where the second reagent reacts with the first reagent to produce a fluorescently labeled product having a substantially different charge than the first reagent. A polyion is introduced into at least one of the first and second reagent mixtures, and the fluorescent polarization in the second reagent mixture relative to the first reagent mixture is determined, this fluorescent polarization being indicative of the rate or extent of the reaction.
33 Citations
15 Claims
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1. A method of determining whether a fluorescently labeled compound is phosphorylated, the method comprising:
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providing the compound in a mixture with a polymer having multivalent metal cations associated therewith which polymer is sufficiently large to induce a shift in an amount of polarized fluorescence emitted from the mixture when the multivalent metal cations bind the polymer to the compound; and
monitoring the amount of polarized fluorescence emitted from the mixture to determine whether the multivalent metal cations bind the polymer to the compound, such binding being indicative that the compound is phosphorylated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification