Abstract: The present invention relates to phosphate-binding compounds that find use in binding, detecting and isolating phosphorylated target molecules including the subsequent identification of target molecules that interact with phosphorylated target molecules or molecules capable of being phosphorylated. A binding solution is provide that comprises a phosphate-binding compound, an acid and a metal ion wherein the metal ion simultaneously interacts with an exposed phosphate group on a target molecule and the metal chelating moiety of the phosphate-binding compound forming a bridge between the phosphate-binding compound and a phosphorylated target molecule resulting in a ternary complex. The binding solution of the present invention finds use in binding and detecting immobilized and solubilized phosphorylated target molecules, isolation of phosphorylated target molecules from a complex mixture and aiding in proteomic analysis wherein kinase and phosphatase substrates and enzymes can be identified.

Abstract: The present invention relates to phosphate-binding compounds that find use in binding, detecting and isolating phosphorylated target molecules including the subsequent identification of target molecules that interact with phosphorylated target molecules or molecules capable of being phosphorylated. A binding solution is provide that comprises a phosphate-binding compound, an acid and a metal ion wherein the metal ion simultaneously interacts with an exposed phosphate group on a target molecule and the metal chelating moiety of the phosphate-binding compound forming a bridge between the phosphate-binding compound and a phosphorylated target molecule resulting in a ternary complex. The binding solution of the present invention finds use in binding and detecting immobilized and solubilized phosphorylated target molecules, isolation of phosphorylated target molecules from a complex mixture and aiding in proteomic analysis wherein kinase and phosphatase substrates and enzymes can be identified.

Abstract: Three bodies interact to drive a transmission having a pair of one-way clutches coupling a single length of drive chain or other elongate flexible member to an intermeshed pair of counter rotatable gears so as to drive a primary shaft in a single rotational direction. The three bodies are a fixed body, a floating body, and a suspended and usually submerged weighted body. The three bodies are interconnected by the single length of the elongate flexible member and are spaced apart there along. The weighted body is mounted at one end of the elongate flexible member. The primary shaft is mounted above the surface of a moving fluid mass to either the fixed or floating body. The end of the flexible member opposite to the weight is mounted to the other of the fixed or floating body.

Abstract: The present invention concerns compositions and processes that use affinity tags for isolating, and detecting or quantifying analytes, including nucleic acids, proteins and polypeptides. Compositions include nucleic acid compositions and protein compositions with affinity binding pairs, including metal binding peptides and immobilized metals, or peptide affinity groups.

Abstract: The present invention provides methods and fluorescent compounds that facilitate detecting and labeling of a fusion protein by being capable of selectively binding to an affinity tag. The fluorescent compounds have the general formula A(B)n, wherein A is a fluorophore, B is a binding domain that is a charged chemical moiety, a protein or fragment thereof and n is an integer from 1-6 with the proviso that the protein or fragment thereof not be an antibody or generated from an antibody. The present invention provides specific fluorescent compounds and methods used to detect and label fusion proteins that contain a poly-histidine affinity tag. These compounds have the general formula A(L)m(B)n wherein A is a fluorophore, L is a linker, B is an acetic acid binding domain, m is an integer from 1 to 4 and n is an integer from 1 to 6.

Abstract: The present invention relates to phosphate-binding compounds that find use in binding, detecting and isolating phosphorylated target molecules including the subsequent identification of target molecules that interact with phosphorylated target molecules or molecules capable of being phosphorylated. A binding solution is provide that comprises a phosphate-binding compound, an acid and a metal ion wherein the metal ion simultaneously interacts with an exposed phosphate group on a target molecule and the metal chelating moiety of the phosphate-binding compound forming a bridge between the phosphate-binding compound and a phosphorylated target molecule resulting in a ternary complex. The binding solution of the present invention finds use in binding and detecting immobilized and solubilized phosphorylated target molecules, isolation of phosphorylated target molecules from a complex mixture and aiding in proteomic analysis wherein kinase and phosphatase substrates and enzymes can be identified.

Abstract: The disclosure features, inter alia, methods and compositions for detecting, isolating, and/or analyzing one or more analytes such as, but not limited to, biomolecules (e.g., proteins, glycoproteins, lipids (e.g., sphingolipids), and carbohydrates). Such methods and compositions are useful in, e.g., the discovery of novel proteins, or the amino acid sequence of novel proteins, or identifying biomarkers for diseases such as cancer, immunological disorders, or microbial infections.

Abstract: Disclosed are methods and reagents for detecting the presence of and/or activity of one or more phospho-transfer activities such as kinase, phosphatase, nucleotide cyclase, or phosphodiesterase activities.

Abstract: The invention relates to methods for isolating an analyte of interest in a sample suspected of containing the analyte of interest using two-dimensional planar electrochromatography. The methods comprise treating at least a portion of the sample with a mobility modifier capable of modifying the mobility of the analyte of interest after the second dimension of planar electrochromatography. Kits and compositions are also disclosed.

Abstract: A method for separating a sample comprising a plurality of compounds includes loading a sample onto a planar stationary phase, said sample comprising a plurality of compounds to be separated; and, while retaining the sample on the planar stationary phase, subjecting the sample to planar electrochromatographic separation in a selected direction using a first mobile phase; and subjecting the sample to a chromatographically-based separation in a direction other than that of the direction used for planar electrochromatographic separation using a second mobile phase. Separation is optionally followed by direct detection of analytes using mass spectrometry (MS). These three dimensions of separation are orthogonal to one another, providing for improved resolution of the analytes.

Abstract: A method of separating biomolecules includes providing a sample comprising one or more biomolecules, at least one of which is hydrophilic; wetting an amphiphilic planar stationary phase with a microemulsion or micelluar mobile phase; and creating an electrical field between first and second electrodes in electrical contact with opposing edges of the amphiphilic stationary phase, wherein the mobile phase advances across the length of the separation medium and one or more biomolecules are separated.

Abstract: The present invention relates to phosphate-binding compounds that find use in binding, detecting and isolating phosphorylated target molecules including the subsequent identification of target molecules that interact with phosphorylated target molecules or molecules capable of being phosphorylated. A binding solution is provide that comprises a phosphate-binding compound, an acid and a metal ion wherein the metal ion simultaneously interacts with an exposed phosphate group on a target molecule and the metal chelating moiety of the phosphate-binding compound forming a bridge between the phosphate-binding compound and a phosphorylated target molecule resulting in a ternary complex. The binding solution of the present invention finds use in binding and detecting immobilized and solubilized phosphorylated target molecules, isolation of phosphorylated target molecules from a complex mixture and aiding in proteomic analysis wherein kinase and phosphatase substrates and enzymes can be identified.

Abstract: The invention provides assay particles useful, for example, for detecting analytes and binding molecule interactions. One type of assay particle includes a core portion encased by a shell portion, wherein the shell portion comprises an inorganic phosphor that binds selectively to a target molecule. Another type of an assay particle includes a core portion encased by a shell portion, and a coat portion covering the shell portion, wherein the coat portion comprises an inorganic phosphor that binds selectively to a target molecule. A further type of assay particle includes a core portion encased by a shell portion, and a coat portion covering the shell portion, wherein the coat portion comprises an inorganic phosphor and a target selective binding moiety, and wherein the assay particle is buoyant in aqueous media.

Abstract: The present invention relates to phosphate-binding compounds that find use in binding, detecting and isolating phosphorylated target molecules including the subsequent identification of target molecules that interact with phosphorylated target molecules or molecules capable of being phosphorylated. A binding solution is provide that comprises a phosphate-binding compound, an acid and a metal ion wherein the metal ion simultaneously interacts with an exposed phosphate group on a target molecule and the metal chelating moiety of the phosphate-binding compound forming a bridge between the phosphate-binding compound and a phosphorylated target molecule resulting in a ternary complex. The binding solution of the present invention finds use in binding and detecting immobilized and solubilized phosphorylated target molecules, isolation of phosphorylated target molecules from a complex mixture and aiding in proteomic analysis wherein kinase and phosphatase substrates and enzymes can be identified.

Abstract: A system and method for developing and utilizing particle-based n-multiplexed assays that include three or more reporters utilizes n particle sets that are associated with particle identification images or labels (IDs) that differ between sets. The encoded particles for a given set are coated with a specific binding member, or in the case of the sandwich assay with coupled capture and detector binding pair members, to form particle types. The sets of particle types are then pooled, and aliquots of the particle types are removed to assay vessels. Next, samples with three or four reporter molecules are supplied to the respective vessels. After one or more incubation periods, the particles are supplied to a reader system, which determines the particle IDs to identify the particle types and also detects the reporter signals. The reader system includes multiple excitation lasers that excite the various reporters in sequence or in parallel, to supply associated signals to one or more detectors.

Abstract: The present invention provides systems, methods and kits for performing multiplexed assays for glycoproteins using encoded particles as supports for glycoprotein specific binding agents.

Abstract: The present invention provides methods and fluorescent compounds that facilitate detecting and labeling of a fusion protein by being capable of selectively binding to an affinity tag. The fluorescent compounds have the general formula A(B)n, wherein A is a fluorophore, B is a binding domain that is a charged chemical moiety, a protein or fragment thereof and n is an integer from 1-6 with the proviso that the protein or fragment thereof not be an antibody or generated from an antibody. The present invention provides specific fluorescent compounds and methods used to detect and label fusion proteins that contain a poly-histidine affinity tag. These compounds have the general formula A(L)m(B)n wherein A is a fluorophore, L is a linker, B is an acetic acid binding domain, m is an integer from 1 to 4 and n is an integer from 1 to 6.

Abstract: Embodiments of the present invention provide a staining solution and of method of using the staining solution for selectively detecting proteins that contain two or more ?-helical transmembrane domains. The staining solution comprises a lipophilic dyes and at least about a 30% hydrophobic solvent. The dyes of the present are represented by the general formula A-B-E wherein A is a nitrogen heterocycle, B is a bridge moiety and E is an electron pair accepting moiety that comprises either a carbonyl or nitrogen atom. In one embodiment these lipophilic dyes are merocyanine dye, a cyanine dye, a styryl dye or a carbazolylvinyl dye.

Abstract: The invention provides methods for isolating a target molecule from a sample. In an embodiment, the method involves contacting a sample with a capture agent, the agent comprising a siderophore and a transition metal cation, under conditions wherein the agent is capable of binding a target molecule to form a target molecule-capture agent complex, wherein the target molecule is selected from the group consisting of a phosphorylated molecule, a nitrotyrosine-containing molecule and a sulfated molecule, and separating the target molecule-capture agent complex from the sample, thereby isolating the target molecule from the sample. Also provided are methods for determining the presence of a target molecule in a sample, that involve contacting a sample with a capture agent, the agent comprising a siderophore and a transition metal cation.

Abstract: The invention describes methods for labeling or detecting of immobilized poly(amino acids), including peptides, polypeptides and proteins, on membranes and other solid supports, using fluorescent dipyrrometheneboron difluoride dyes. Such immobilized poly(amino acids) are labeled or detected on blots or on arrays of poly(amino acids), or are attached to immobilized aptamers.