摘要:
The present invention relates to compounds that are substrates for an enzyme, and upon reaction with the enzyme provide a detectable response, such as an optically detectable response. In particular, the compounds have utility in detecting the presence of a β-lactamase in a sample. In addition to the compounds, methods are disclosed for analyzing a sample for the presence of a β-lactmase, for example, as an indicator of expression of a nucleic acid sequence including a sequence coding for a β-lactmase. Kits are disclosed that include the disclosed compounds and additional components, for example, cells, antibodies, a β-lactmase or instructions for using the components in an assay.
摘要:
The present invention relates to compounds that are substrates for an enzyme, and upon reaction with the enzyme provide a detectable response, such as an optically detectable response. In particular, the compounds have utility in detecting the presence of a β-lactamase in a sample. In addition to the compounds, methods are disclosed for analyzing a sample for the presence of a β-lactmase, for example, as an indicator of expression of a nucleic acid sequence including a sequence coding for a β-lactmase. Kits are disclosed that include the disclosed compounds and additional components, for example, cells, antibodies, a β-lactmase or instructions for using the components in an assay.
摘要:
The present invention relates to compounds that are substrates for an enzyme, and upon reaction with the enzyme provide a detectable response, such as an optically detectable response. In particular, the compounds have utility in detecting the presence of a β-lactamase in a sample. In addition to the compounds, methods are disclosed for analyzing a sample for the presence of a β-lactamase, for example, as an indicator of expression of a nucleic acid sequence including a sequence coding for a β-lactamase. Kits are disclosed that include the disclosed compounds and additional components, for example, cells, antibodies, a β-lactamase or instructions for using the components in an assay.
摘要:
Compositions, assays, methods, and kits are disclosed for use in applications that utilize oxidation of a chromogenic electron donor such as diaminobenzidine (DAB) to generate a signal. Applications include, but are not limited to, immunohistochemistry, chromogenic in situ hybridization, Western blots, Northern blots, Southern blots, ELISA assays, and microarray detection. The compositions, assays, methods, and kits disclosed herein make use of a novel, stabilized formulation of DAB and a novel, stabilized formulation of hydrogen peroxide.
摘要:
The invention relates to methods for isolating and/or identifying nucleic acids. The invention also provides kits for isolating and/or identifying nucleic acids.
摘要:
A method is provided for purifying a desired polynucleotide product by removing unincorporated oligonucleotides from a polymerase or ligase reaction mixture.
摘要:
In certain embodiments, provided are methods and compositions useful for the detection and quantitation of catalytically active enzymes, particularly catalytically active proteases. The compositions comprise one or more multifunctional tags, wherein each different multifunctional tag comprises a different mobility modifier, a partitioner, a reporter, and a peptide substrate that is specifically or substantially specifically hydrolyzed by a target protease or target protease family. Hydrolysis of each different multifunctional tag by a target protease provides a different labeled hydrolytic product comprising a reporter and a mobility modifier but not a partitioner, where the mobility modifier confers a distinctive mobility on the labeled hydrolytic product in a mobility-dependent analysis technique.
摘要:
Interactive geographic information systems (GIS) and techniques are disclosed that provide users with a greater degree of flexibility, utility, and information. A markup language is provided that facilitates communication between servers and clients of the interactive GIS, which enables a number of GIS features, such as network links (time-based and/or view-dependent dynamic data layers), ground overlays, screen overlays, placemarks, 3D models, and stylized GIS elements, such as geometry, icons, description balloons, polygons, and labels in the viewer by which the user sees the target area. Also, “virtual tours” of user-defined paths in the context of distributed geospatial visualization is enabled. Streaming and interactive visualization of filled polygon data are also enabled thereby allowing buildings and other such features to be provided in 3D. Also, techniques for enabling ambiguous search requests in a GIS are provided.
摘要:
Fluorogenic semiconductor nanocrystals and compositions thereof are provided herein, including kits, assay systems and methods for their preparation and use.
摘要:
The invention relates to methods for isolating and/or identifying nucleic acids. The invention also provides kits for isolating and/or identifying nucleic acids.