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In the AlphaLISA SureFire Ultra p-STAT3 (Tyr705) assay, donor beads are coated with streptavidin to capture one of the antibodies used in the assay, which is biotinylated. Acceptor beads are coated with a proprietary CaptSure™ agent that immobilizes the other antibody, labeled with a CaptSure tag. In the presence of phosphorylated protein, the two antibodies bring the Donor and Acceptor beads close together, leading to signal generation. The intensity of the light emission is directly proportional to the amount of phosphoprotein present in the sample, making the AlphaLISA SureFire Ultra an excellent immunoassay for quantitative detection of phospho-STAT3 in cellular lysates.
AlphaLISA SureFire Ultra p-STAT3 (Tyr705) kits are compatible with cell and tissue lysates, antibody modulators, and biotherapeutic antibodies. These kits can be used for cellular kinase assays, receptor activation studies, and screening.
|Assay Target Class||Phosphoprotein|
|Product Brand Name||AlphaLISA SureFire Ultra|
|Quantity in a Package Amount||500.0 Units|
|Shipping Condition||Blue Ice|
|Unit Size||500 assay points|
The introduction of enzyme-linked immunosorbent assays (ELISAs) in the early 1970’s offered researchers a non-radiometric immunoassay platform without compromising sensitivity. Over the last 50 years scientists have made huge strides in disease research and drug discovery and a demand for greater assay throughput and sensitivity has evolved. In response, more robust immunoassays have been developed to address some of the limitations of the standard, colorimetric ELISA.
Find out about the most common limitations of traditional ELISAs and how different ELISA alternative technologies address these limitations.