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AlphaLISA CHO HCP Detection Kit, 100 Assay Points

The AlphaLISA™ immunoassay kit for CHO Host Cell Protein (HCP) Detection enables the quantitative determination of CHO HCP in buffer, cell culture media, and cell supernatants using a homogeneous AlphaLISA assay (no wash steps). The CHO HCP Detection Kit is also available in HTRF® format as an orthogonal technology.

Feature Specification
Application Protein Quantification
Dynamic Range 0.52 - 3,000 ng/mL  
Limit of Detection 0.52 ng/mL  
Limit of Quantification 1.80 ng/mL  
Sample Volume 5 µL

The AlphaLISA™ immunoassay kit for CHO Host Cell Protein (HCP) Detection enables the quantitative determination of CHO HCP in buffer, cell culture media, and cell supernatants using a homogeneous AlphaLISA assay (no wash steps). The CHO HCP Detection Kit is also available in HTRF® format as an orthogonal technology.

Product variants
Unit Size: 100 assay points
Part #:
AL3176HV
List price
USD 734.72
Your online price:
Unit Size: 500 assay points
Part #:
AL3176C
List price
USD 1,844.73
Your online price:
Unit Size: 5,000 assay points
Part #:
AL3176F
List price
USD 11,999.50
Your online price:
For research use only. Not for use in diagnostic procedures. All products to be used in accordance with applicable laws and regulations including without limitation, consumption, and disposal requirements under European REACH regulations (EC 1907/2006).

Overview

CHO cells are widely used expression hosts for recombinant proteins and are utilized for the generation of monoclonal antibodies. The CHO Host Cell Proteins (HCP) kit is designed to measure contaminants originating from the CHO cells used to manufacture therapeutic antibodies. This kit can be utilized to quantify CHO HCP proteins at various stages, from routine bioprocess operations to crude harvest materials to final products. Our simple procedure and robust assay offer increased throughput compared to ELISA.

Formats:

  • Our 100 assay point kit allows you to run 100 wells in 96-well format, using a 50 µL reaction volume (5 µL of sample).
  • Our 500 assay point kit allows you to run 500 wells in 96-well or 384-well format, using a 50 µL reaction volume (5 µL of sample).
  • Our 5,000 assay point kit allows you to run 5,000 wells in 96-well or 384-well format, using a 50 µL reaction volume (5 µL of sample).

Features:

  • No-wash steps, no separation steps
  • ELISA alternative technology
  • Sensitive detection
  • Broad sample compatibility
  • Small sample volume
  • Results in less than 3 hours
  • Half the time of an ELISA assay

AlphaLISA technology allows the detection of molecules of interest in a no-wash, highly sensitive, quantitative assay. In an AlphaLISA assay, a biotinylated anti-analyte antibody binds to the Streptavidin-coated 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 causes the release of singlet oxygen molecules that triggers a cascade of energy transfer in the Acceptor beads, resulting in a sharp peak of light emission at 615 nm.

How it works

Principle of the AlphaLISA assay

The AlphaLISA assay is based on an AlphaLISA sandwich immunoassay involving a biotinylated anti-analyte antibody bound to Streptavidin-coated AlphaLISA Donor beads and an anti-analyte antibody conjugated to AlphaLISA Acceptor beads. Both antibodies are directed against the analyte of interest. In the presence of the target, both antibodies bind to analyte and the beads come into proximity. The excitation of the Donor beads provokes the release of singlet oxygen molecules that triggers a cascade of energy transfer within the Acceptor beads, resulting in emission with λmax at 615 nm. The intensity of the signal is directly proportional to the concentration of analyte present in the sample.

Assay Principle AlphaLISA

 

Protocol of the AlphaLISA assay

The AlphaLISA assay can be run in a 96- or 384-well detection plate (50 µL final). As described here, samples or standards are dispensed directly into the assay plate for the detection of the analyte of interest by AlphaLISA reagents. No washing steps are needed. The protocol can be further miniaturized or upscaled by simply resizing each addition volume proportionally.

AlphaLISA 3-step assay protocol, acceptor bead first

Specifications

Application
Protein Quantification
Automation Compatible
Yes
Brand
AlphaLISA
Detection Modality
Alpha
Dynamic Range
0.52 - 3,000 ng/mL  
Limit of Detection
0.52 ng/mL  
Limit of Quantification
1.80 ng/mL  
Product Group
Kit
Sample Volume
5 µL
Shipping Conditions
Shipped in Blue Ice
Target
HCP
Target Class
Biologics
Technology
Alpha
Unit Size
100 assay points

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Application Note
Advantages of using our automatable and no-wash HTRF and AlphaLISA kits for CHO HCP detection

Detecting and quantifying HCPs with automatable homogeneous immunoassays

During biotherapeutic manufacturing and production, the...

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