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.

Abstract: Systems for detecting molecular modifications and the presence and/or activity of enzymes and/or other agents involved in facilitating or otherwise regulating such modifications.

Abstract: Assays for detecting molecular modifications such as phosphate modifications and the presence and/or activity of enzymes and other agents involved in facilitating or otherwise regulating such modifications.

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.

Abstract: Systems for detecting molecular modifications and the presence and/or activity of enzymes and/or other agents involved in facilitating or otherwise regulating such modifications.

Abstract: Systems, including compositions, kits, and methods, particularly for photoluminescence applications. The systems may include, among others, (1) organic chelators, (2) complexes between the chelators and lanthanide ions, and (3) precursors, derivatives, and uses thereof. The chelators may include a 1,4,7,10-tetraazacyclododecane ring system, for example, having the formula: Here, R1, R2, and R3 are substituents of the tetraazacyclododecane ring system, that is further substituted at the 10-position by a sensitizer Z that is typically a polyheterocyclic ring system. The organic chelator may be capable of forming a luminescent complex with a lanthanide ion, and is optionally further substituted by a reactive functional group or a conjugated substance. The resulting lanthanide complex may be useful in luminescence-based assays, such as energy transfer assays, among others.

Abstract: Assays for detecting molecular modifications such as phosphate modifications and the presence and/or activity of enzymes and other agents involved in facilitating or otherwise regulating such modifications.

Abstract: Assays for detecting molecular modifications such as phosphate modifications and the presence and/or activity of enzymes and other agents involved in facilitating or otherwise regulating such modifications.

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.

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.

Abstract: Assays for detecting molecular modifications such as phosphate modifications and the presence and/or activity of enzymes and other agents involved in facilitating or otherwise regulating such modifications.

Abstract: Improvements in luminescence polarization assays. The improvements may include using confocal optics to increase sensitivity and accuracy, providing additional classes of tracers, providing improved methods to prepare specific luminescent tracers, and/or expanding the scope of assay targets, among others.

Abstract: Monoclonal antibodies which react with the human influx peptide transporter are provided. The human influx peptide transporter-reactive antibodies are useful in the purification of influx peptide transporter and in immunoassays to identify agents taken up into the cell by the human influx peptide transporter mechanism.

Abstract: Monoclonal antibodies which react with the human influx peptide transporter are provided. The human influx peptide transporter-reactive antibodies are useful in the purification of influx peptide transporter and in immunoassays to identify agents taken up into the cell by the human influx peptide transporter mechanism. The monoclonal antibodies are also useful for the detection and treatment of carcinomas derived from the gastrointestinal tract and pancreatic duct.

Abstract: Monoclonal antibodies which react with the human influx peptide transporter are provided. The human influx peptide transporter-reactive antibodies are useful in the purification of influx peptide transporter and in immunoassays to identify agents taken up into the cell by the human influx peptide transporter mechanism. The monoclonal antibodies are also useful for the detection and treatment of carcinomas derived from the gastrointestinal tract and pancreatic duct.

Abstract: Monoclonal antibodies which react with the human influx peptide transporter are provided. The human influx peptide transporter-reactive antibodies are useful in the purification of influx peptide transporter and in immunoassays to identify agents taken up into the cell by the human influx peptide transporter mechanism. The monoclonal antibodies are also useful for the detection and treatment of carcinomas derived from the gastrointestinal tract and pancreatic duct.

Abstract: A method and device for detecting the presence of a suspected antigen in a sample whereby the antigen is trapped using affinity chromatography and the remaining eluant is differentially analyzed against a parallel processed control. The sample is first chromatographically segregated into distinct zones and the resulting eluant is split into two streams. One stream is contacted with a solid phase having immobilized capture ligands specific to the antigen of interest. The other stream is passed through a similar solid phase where the capture ligands have been omitted. The two streams are then differentially analyzed, for example, with ultraviolet light absorption.