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:
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 purified thermostable enzyme is derived from the eubacterium Thermus species Z05. The enzyme has DNA polymerase, activity reverse transcriptase activity, and optionally 5'.fwdarw.3' exonuclease activity. The enzyme can be native or recombinant, and may be used with primers and nucleoside triphosphates in a temperature-cycling chain reaction where at least one nucleic acid sequence is amplified in quantity from an existing sequence.
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:
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.
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:
The invention relates to compositions and methods for isolating nucleic acids from biological samples, including whole tissue. The invention also provides kits for isolating nucleic acids from biological samples.
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.