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Dihydrofolate Reductase Inhibitor Screening Kit (Colorimetric)

Simple assay for high-throughput screening of DHFR inhibitors/activators
Catalog #: K247

Product Details

Cat # +Size K247-100
Size 100 assays
Detection Method Absorbance (OD= 340 nm)
Species Reactivity 0
Applications Screening/characterizing/studying ACE2 inhibitors/activators
Features & Benefits • Simple and reliable test to screen DHFR inhibitors/activators
• High-throughput compatible
• Includes Inhibitor Control (Methotrexate)
Kit Components • DHFR Assay Buffer
• DHFR Substrate
• Dihydrofolate Reductase
• Methotrexate (10 mM)
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


Dihydrofolate Reductase (DHFR; 5,6,7,8-tetrahydrofolate NADP oxidoreductase; EC, is a ubiquitous enzyme that is present in all eukaryotic and prokaryotic cells, playing a key role in folate metabolism. Inhibition of DHFR results in reduction of the intracellular level of tetrahydrofolate, inhibition of RNA and DNA synthesis, and cell death. For this reason, DHFR has been a critically important therapeutic target for anti-tumor drugs. Methotrexate (MTX) is the most widely investigated inhibitor of DHFR, inhibiting both prokaryotic and eukaryotic DHFRs, and has shown antitumor activity. BioVision’s Dihydrofolate Reductase Inhibitor Screening Kit is designed for screening DHFR inhibitors. MTX is used as a positive control. The DHFR activity is monitored by the reduction in absorbance reading at OD340 nm, while potential inhibitors arrest this decrease. The kit is adapted to a 96-well format and provides a rapid, simple, sensitive, and reliable test for high-throughput screening of DHFR inhibitors.

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Can the kit work on bacteria or yeast cells?
The kit has been standardized for mammalian cells only
What is the exact volume of sample required for this assay?
There is no specific volume we can recommend for the amount any sample to be used since it is completely sample concentration and quality based. You have to do a pilot expt with multiple sample volumes to determine the optimal volume which gives a reading within the linear range of the standard curve. Please refer to the citations for this product to see what other clients have used with similar sample types.
Do you have trial sizes of this kit?
Unfortunately, we do not have trial sizes of this kit available. However, if you are based in the US or Canada, we will give you a 10% off list price introductory discount on its purchase price. If you are based out of this area please contact your regional BioVision distributor.
Can we purchase individual components of this kit?
Yes, you can purchase any of the kit's components without the whole kit. Please refer to the component Cat #s mentioned on the datasheet for ordering.
Can we use an alternate buffer for sample preparation (cell lysis, sample dilutions etc)?
Our assay buffers are optimized for the reactions they are designed for. They not only contain some detergents for efficient lysis of your cells/tissue, but also contain some proprietary components required for the further reactions. Therefore, we highly recommend using the buffers provided in the kit for the best results.