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ProteinEXact Assay Reagent Kit

The LabChip® GXII Touch Capillary Electrophoresis System utilizes a microfluidic chip to rapidly characterize protein samples from 24-, 96- or 384-well plates. The technology automatically stains, distains, electrophoretically separates and analyzes the protein samples. Use the system software to automatically analyze data which is immediately available for review or reporting in virtual gel, electropherogram graph or table summary form.

For research use only. Not for use in diagnostic procedures.
Part number: CLS150466
List price: USD 627.30
Your price:
USD 627.30
USD 627.30 /each


Protein Quantitation and Sizing

Bring improved analytical sensitivity to your protein quantitation and sizing applications with the ProteinEXact assay for the LabChip® GXII Touch protein characterization system. The ProteinEXact assay is ideal for use in both upstream and downstream biotherapeutics and gene therapy workflows which require the utmost in precision. The high resolution and reproducibility of protein concentration analysis delivered by the ProteinEXact assay enables accurate, high throughput AAV purity characterization for recombinant viral production. Additionally, it enables high-throughput quantification and characterization of asymmetrical bispecific antibodies.

Additional product information

With the analytical power and speed of the LabChip GXII Touch protein characterization system and IntelliChip™ assay optimization technology, you can accelerate your protein development workflows with reproducible and sensitive protein quantitation, and an expanded sizing range.

  • Dependable reproducibility for quantitation (<10% CV) and sizing (<2% CV)
  • Broad sizing and quantitation range: 6.5-250 kDa and 10-2000 ng/μL
  • Sensitive: 0.2 ng/μL
  • Flexible: Run in batches of 48 or 96 samples at a time
  • Fast: Analysis in ~65 sec per sample
  • The LabChip GXII Touch protein characterization system delivers comparable results to traditional capillary electrophoresis with 46X faster run times without compromising sensitivity, resolution or reproducibility.

Choose ProteinEXact Assay for sizing and quantitation application for proteins ranging in size from 6.5 to 250 kDa.


  • Sizing Range: 6.5 kDa - 250 kDa
  • Sizing Precision RSD (CV): <2%
  • Sizing Resolution: ≤10%
  • Linear Dynamic Range: 10-2000 ng/µL
  • Maximum Total Protein Concentration: 2 mg/mL
  • Sensitivity Limit of Detection (LOD): 0.2 ng/µL
  • Quantitation Reproducibility: <10%
  • Maximum Salt Concentration: 1M NaCl at pH 6.5 to 8.5
  • Chip Primes per Reagent Kit: 10
  • Chip Sample Lifetime: 400
  • Sample Analysis Time: 65 sec
ProteinEXact Assay Reproducibility & Sensitivity
proteinexact assay fig-1

Figure 1: At both high and low concentration ranges, the ProteinEXact assay provides exceptional reproducibility at a CV less than 10%

proteinexact assay fig-2

Figure 2: ProteinEXact assay is sensitive across an expanded sizing range (6.5 – 250 kDa) starting as low as 0.2 ng/µL

This product is provided under an intellectual property license from Life Technologies Corporation. The purchase of this product conveys to the buyer the non-transferable right to use the data for internal research and training purposes solely in combination with Revvity, Inc. instrumentation, and not to generate revenue, which may include, but is not limited to use of the product: (1) in manufacturing or in quality assurance or quality control of a commercial product; (2) to provide a service, information, or data for a fee or other consideration; (3) for therapeutic or prophylactic purposes; (4) for diagnostic use; and (5) for resale, whether or not such items are resold for use in research. For information on purchasing a license to this product for any other purposes, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 USA or


Analytical Technique
Protein Analysis & Detection
Protein Analysis
LabChip GXII
Research Areas
Drug Development & Manufacturing
Drug Discovery & Manufacturing
Food & Agriculture
Sample Type
Shipping Conditions
Shipped in Dry Ice

Selected Publications / Citations / References

  1. Smith, M. T., Zhang, S., Adams, T., Dipaolo, B., & Dally, J. (2017). Establishment and validation of a microfluidic capillary gel electrophoresis platform method for purity analysis of therapeutic monoclonal antibodies. Electrophoresis,38(9-10), 1353-1365. doi:10.1002/elps.201600519


1-2 of 2 Resources
Product Note
Automated characterization of proteins and nucleic acids

Read the LabChip® GXII Touch protein characterization system product note to learn about an automated alternative to traditional...

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Application Note
Streamlining the development of bispecific antibodies from expression to quality assessment with Revvity’s biotherapeutic workflow solutions

In this application note we show how the CHOSOURCE TnT Transposon Technology was used to express an asymmetric 4-chain bispecific...

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SDS, COAs, Manuals and more

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