A rapid method to quantitatively screen bispecific antibody using Protein A and His1K biosensors

23 Mar 2020

There is currently a limitation in technologies that allow for quantitative functional assessment of two interactions to one bispecific molecule in the market. In this application note, FoteBio demonstrates an easy method for bsAb evaluation. Utilizing Protein A and HIS1K biosensors, they were able to identify conditions quickly that are suitable for quantitative measurement of bispecific binding.

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AntibodiesAntibodies are used in techniques such as confocal and fluorescence microscopy, flow cytometry, ELISA, ELISPOT, immunohistochemistry, western blotting and immunopreciptation. Select specific antigen reactivity, high specific affinity, low non-specific binding, monoclonal or polyclonal, primary or secondary antibodies and associated conjugates such as an enzyme or dye for visualization.BiosensorsBiosensors are devices used to detect an analyte using biological molecules specific to the analyte coupled to a detector. Biosensor instruments may be photometric, typically using surface plasma resonance (SPR), electrochemical or QCM (quartz crystal microbalance) biosensors. Biosensors should be selective, portable, robust and sensitive and have a fast response time. Systems may be manual or automated and usually have associated software.ProteomicsProteomics is the systemic bioinformatics study of proteins and amino acids, including their structure, size, function and identification. Tools used in proteomics include chromatography, blotting and gels, protein arrays, mass spectrometry and ELISA and associated analysis software. Analyzers and proteomic systems should be sensitive, high resolution, fast and may be automated for high-throughput.AntibodiesEngineered AntibodiesEngineered antibodies are modified to enhance specificity, stability, and functionality for therapeutic and diagnostic applications. These antibodies are central to immunotherapy and biomarker detection. Compare engineered antibody solutions in our directory to find top products and reviews.Protein BiologyThe analysis of protein expression, identity and function is vital for many areas of life science research and drug discovery. Some of the most commonly used techniques in protein analysis include Western blotting, electrophoresis and mass spectrometry.