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Cytochrome P450 2C19 (CYP2C19) Activity Assay Kit (Fluorometric)

Highly Sensitive; Includes human CYP2C19 - NADPH Reductase as positive control.
Catalog #: K848

In stock

$310.00

Product Details

Cat # +Size K848-100
Size 100 assays
Detection Method Fluorescence (Ex/Em 406/468 nm)
Species Reactivity Eukaryotes
Applications • Rapid assessment of native/recombinant CYP2C19 activity in lysates or microsomal fractions prepared from tissues, cells.
• Screening of drugs and novel ligands for interaction with native/recombinant CYP2C19.
Features & Benefits • Simple, convenient, highly sensitive
• Fluorescent assay enables easy determination of CYP2C19 activity in a variety of biological samples
• The substrate shows low background and a high signal-to-noise ratio
• Kit includes CYP2C19 inhibitor (+)-N-3-benzylnirvanol and a stable, recombinant human CYP2C19 co-expressed with NADPH Reductase as a positive control
Kit Components • CYP2C19 Assay Buffer
• 3-CHC Standard
• CYP2C19 Inhibitor ((+)-N-3-benzylnirvanol)
• NADPH Generating System (100X)
• β-NADP+ Stock (100X)
• CYP2C19 Substrate
• Recombinant Human CYP2C19
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.

Details

Cytochrome P450 2C19 (CYP2C19, EC 1.14.14.1) is a member of the cytochrome P450 monooxidase (CYP) family of microsomal xenobiotic metabolism enzymes. CYPs are membrane-bound hemeproteins responsible for Phase I biotransformation reactions, in which lipophilic drugs and other xenobiotic compounds are converted to more hydrophilic products to facilitate excretion from the body. CYP2C19 is primarily expressed in liver and intestinal tissue and catalyzes oxidation of neutral or weakly basic lipophilic molecules with 2-3 hydrogen bond donor/acceptor sites. Isoforms of the CYP2C subfamily are responsible for metabolism of nearly 20% of all small molecule drugs commonly used by humans. Polymorphisms in the human CYP2C19 gene have been implicated in clinical drug/drug interactions involving widely-prescribed drugs, including proton pump inhibitors, antiplatelet agents and anticonvulsants. In addition, for drugs whose pharmacological activity requires metabolism from a pro-drug form, CYP2C19 inhibition or allelic deficiency can lead to decreased drug efficacy. BioVision’s CYP2C19 Activity Assay Kit enables rapid measurement of native or recombinant CYP2C19 activity in biological samples such as liver microsomes. The assay utilizes a non-fluorescent CYP2C19 substrate that is converted into a highly fluorescent metabolite detected in the visible range (Ex/Em = 406/468 nm), ensuring a high signal-to-background ratio with little interference by autofluorescence. A highly-selective CYP2C19 inhibitor is provided for determination of CYP2C19 activity in heterogeneous biological samples, where other CYP isozymes may contribute to substrate metabolism. The inhibitor displays greater than 100-fold selectivity for CYP2C19 over other CYPs, ensuring targeted inhibition. CYP2C19 specific activity is calculated by running parallel reactions in the presence and absence of the selective inhibitor and subtracting any residual activity detected with the inhibitor present. The kit contains a complete set of reagents sufficient for performing 50 sets of paired reactions (in the presence and absence of inhibitor).


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