Abstract:
The present invention provides a general approach for G protein coupled receptors that may be used to define agonists and antagonists, and the specificity of receptor coupling to G protein subunits. Methods of the present invention use small volumes (microliters) and are compatible with high throughput flow cytometry. When assays of the present invention are multiplexed, the specificity of the interactions of a receptor with many G proteins may be determined simultaneously.
Abstract:
The present invention provides a compound and a method of making a compound according to the following formula: where R 1 is an alkyl group having 1 to 12 carbons; R 2 is a urea group; R 3 is an active group, such as fluorescein, a toxin, radiolabel or drug; and R 4 , R 5 and R 6 are each independently a halide group.
Abstract:
A mixing apparatus is provided comprising: first driving means for driving a plurality of reagent samples from a plurality of respective source wells into a first fluid flow stream; second driving means for introducing a separation gas between each of the plurality of reagent sample in the first fluid flow stream; means for driving a second fluid flow stream comprising a plurality of particles; a junction device comprising: a first inlet port for receiving the first fluid flow stream; a second inlet port for receiving the second fluid flow stream; a reaction zone for forcing mixing between the first fluid flow stream and the second fluid flow stream to thereby form a reaction product stream; and an outlet port for allowing the reaction product stream to exit the junction device; a reaction zone where the plurality of reagent samples and the plurality of particles mix to form a plurality of reaction products, the reaction zone communicating with the outlet port; reaction product driving means for driving the reaction product stream through the reaction zone; and means for selectively analyzing the reaction product stream for the reaction products. A method for mixing materials is also provided comprising: driving a first fluid flow stream comprising a plurality of reagent samples separated by gas bubbles through a second inlet port of a junction device; driving a second fluid flow stream comprising particles through a first inlet port of the junction device; mixing the first fluid stream and the second fluid stream in a reaction zone in the junction device to form a reaction product stream; and driving the reaction product stream through an outlet port of the junction device.
Abstract:
The present invention provides a compound and a method of making a compound according to the following formula: where R 1 is an alkyl group having 1 to 12 carbons; R 2 is a urea group; R 3 is an active group, such as fluorescein, a toxin, radiolabel or drug; and R 4 , R 5 and R 6 are each independently a halide group.
Abstract:
The present invention provides a general approach for G protein coupled receptors that may be used to define agonists and antagonists, and the specificity of receptor coupling to G protein subunits. Methods of the present invention use small volumes (microliters) and are compatible with high throughput flow cytometry. When assays of the present invention are multiplexed, the specificity of the interactions of a receptor with many G proteins may be determined simultaneously.
Abstract:
A mixing apparatus (100) is provided comprising: first driving means for driving a plurality of reagent samples from a plurality of respective source wells (110) into a first fluid flow stream; second driving means for introducing a separation gas between each of the plurality of reagent samples (112) in the first fluid flow stream; means for driving a second fluid flow stream comprising a plurality of particles (124); a junction device comprising: a first inlet port (128) for receiving the first fluid flow stream; a second inlet port (120) for receiving a second fluid flow stream; a reaction zone for forcing mixing between the first fluid flow stream and the second fluid flow stream to thereby form a reaction product stream; and an outlet port (134) for allowing the reaction product stream to exit the junction device.
Abstract:
The invention provides a sensing device comprising: a vessel; a plurality of sensor beads located within the vessel to form interstitial spaces there through; and a plurality of biomolecules bound to at least at portion of the plurality of beads, each of the biomolecules having a fluorescent tag. A sensing device comprised a suspension of a plurality of sensor beads. The invention also provides a method for detecting the binding of two biomolecules comprising the following steps: providing a plurality of first biomolecules, each of the first biomolecules having a first fluorescent tag; and providing a plurality of second biomolecules, each of the second biomolecules having a second fluorescent tag. The binding step have a pre-complexing total fluorescence and detecting any difference between the pre-complexing total fluorescence and the post-complexing total fluorescence.