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BCL-2 Alpha CETSA Target Engagement Assay Kit, 5,000 assay points (Lysis Buffer 5 only)

Measure binding of small molecule drug candidates to target protein in a cellular environment with Alpha CETSA® target engagement assays. For use in combination with Pelago Bioscience's CETSA® (Cellular Thermal Shift Assay) technology, this kit provides a convenient no-wash assay for detection and quantitation of small molecule binding to BCL-2, and can be used in hit identification, hit confirmation, and lead optimization studies for increased confidence and better prediction early in the drug discovery process. Please note that a valid CETSA® subscription from Pelago Biosciences is required for use.

For research use only; not for diagnostic procedures. All products to be used in accordance with applicable laws and regulations including without limitation, consumption & disposal requirements under European REACH regulations (EC 1907/2006).

Part Number
Unit Size
Buffer
List Price
Your Price
Quantity
CETSA-BCL2-A500
500 assay points
All
4742.00 USD
 
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CETSA-BCL2-A5K1
5,000 assay points
Buffer 1
41000.00 USD
 
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CETSA-BCL2-A5K2
5,000 assay points
Buffer 2
41000.00 USD
 
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CETSA-BCL2-A5K3
5,000 assay points
Buffer 3
41000.00 USD
 
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CETSA-BCL2-A5K4
5,000 assay points
Buffer 4
41000.00 USD
 
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CETSA-BCL2-A5K5
5,000 assay points
Buffer 5
41000.00 USD
 
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Overview

Alpha CETSA® Target Engagement kits efficiently assess target engagement in live cells, on endogenously expressed target protein with no need for engineered protein constructs or cell lines to gain confidence with earlier, better prediction in the drug discovery process.

Benefits:

  • Cell-based assay for target engagement using all cell types (primary cells, cell lines, iPS etc.)
  • Utilized as physiologically relevant model with endogenously expressed target protein (no need for cloning)
  • Detection based on rapid, simple Alpha technology (no washing or separation steps)
  • Validated protocol by Pelago Bioscience
  • Optimized cell lysis buffers (selection of five buffers for assay development)
  • Minimal handling in a streamlined workflow, for fastest results
  • Excellent reproducibility for consistent outcomes
  • Robotics- and automation-compatible for increased productivity

The Cellular Thermal Shift Assay (CETSA®) assesses the thermal stability of proteins in living cells and cell lysate based on denaturation and aggregation upon heating. The relative amount of remaining soluble protein after heating is measured, and a thermal melting curve of target protein is generated. Compound binding affects the thermal stability of the protein, with a shift in the melting curve indicative of cellular target engagement.

CETSA® is performed by incubating intact cells with the test compound. A melting curve is generated where the sample, in the presence and in the absence of a reference compound, is heat challenged at 12 different temperatures. From the melting curve, a single temperature is selected where there is an obvious shift of the reference compound. This single temperature is then used to perform single concentration or concentration-response curve compound screening. An alternative assay format is to run the assay with disrupted cells. This is useful in measuring the ability of the compound to engage the target protein independently of its ability to cross the cell membrane, and of its potential efflux or metabolization by the cells.

Alpha CETSA® assay kits enable the rapid, sensitive, and quantitative detection of target protein that remains soluble after heat treatment of compound-treated cells without any need for separating soluble and aggregated protein (no washing steps; no separation steps). In an Alpha CETSA® assay, a biotinylated anti-analyte antibody binds to the Streptavidin-coated Alpha Donor beads, while another anti-analyte antibody is conjugated to AlphaLISA® Acceptor beads. In the presence of the analyte, the beads come into close proximity. The excitation of the Donor beads provokes the release of singlet oxygen molecules that triggers a cascade of energy transfers in the Acceptor beads, resulting in a sharp peak of light emission at 615 nm. This Alpha signal generated upon illumination of Donor Beads can be read with an Alpha-enabled plate reader, such as the EnVision®, EnSight™, or VICTOR Nivo multimode plate readers. The amount of light emission is directly proportional to the amount of soluble protein present in the sample.

This assay eliminates the need for laborious techniques, such as Western blotting or conventional ELISA. Alpha CETSA® is a homogeneous assay with no sample washing steps required, allowing for minimal handling, short assay times, better well-to-well reproducibility (lower CV%), and robotic operation if desired.

Formats:

  • The 500-point kit contains enough reagents to run 500 wells in 96-well or 384-well format using a 50 µL reaction volume, and contains small bottles of each of the five types of lysis buffer.
  • The 5,000-point kits contain enough reagents to run 5,000 wells in 96-well or 384-well format using a 50 µL reaction volume. Each 5,000 point kit contains a different cell lysis buffer:
    • CETSA-BCL2-A5K1 contains CETSA® Cell Lysis Buffer 1
    • CETSA-BCL2-A5K2 contains CETSA® Cell Lysis Buffer 2
    • CETSA-BCL2-A5K3 contains CETSA® Cell Lysis Buffer 3
    • CETSA-BCL2-A5K4 contains CETSA® Cell Lysis Buffer 4
    • CETSA-BCL2-A5K5 contains CETSA® Cell Lysis Buffer 5

Specifications

Assay Target BCL-2
Assay Target Class Protein
Automation Compatible Yes
Buffer Buffer 5
Detection Method Alpha
Product Brand Name Alpha CETSA
Shipping Condition Blue Ice
Unit Size 5,000 assay points
Resources, Events & More
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Brochure

Alpha Technology Solutions

Product brochure for the Alpha Technology, a versatile, no wash, homogeneous assay technology that's suitable for a broad range of applications.

PDF 2 MB

White Paper

CETSA and its Role in Target Engagement

Faced with ever-increasing costs in developing and bringing pharmaceuticals to market, pharma companies are placing greater emphasis in pre-clinical validation of their drug candidates. An area receiving such attention is validation of Target Engagement, i.e., confirming that a ligand exerts its ...

PDF 1 MB
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