The Alpha SureFire® Ultra™ Multiplex assay kits allow the rapid, sensitive, and quantitative detection of phosphoproteins from cells, combined with the measurement of the total amount of the AKT, ERK or cofilin protein or combined with the measurement of a second phosphoprotein. This Alpha Multiplex measurement is carried out in the same assay plate well from a single sample of cell lysate, and is achieved by the use of two types of Alpha Acceptor beads that emit at distinct wavelengths (545nm and 615nm). The two distinct Alpha Acceptor beads report their binding to a distinct antigen through their association with specific assay antibodies, as indicated below.
Alpha SureFire Ultra Multiplex assays are divided into two categories (1) Multiplex SureFire Ultra (MPSU) kits and (2) Terbium SureFire Ultra (TBSU) kits. The MPSU kits are complete kits for phospho and total detection of the same target (ERK or AKT), while the TBSU kits measure a single phosphoprotein target and are intended to be combined with a standard AlphaLISA SureFire Ultra kit (ALSU) to assess the second target. The TBSU kits allow for a pick-and-pack combination of any two phosphoprotein targets in the assay lists, providing measurement of two separate targets with ultimate flexibility of selection.
The next-generation technology for detecting protein phosphorylation, AlphaLISA SureFire Ultra is a highly sensitive assay for screening therapeutic antibodies and small molecules on cultured cells or tissue lysates. AlphaLISA SureFire Ultra combines CaptSure™ technology with AlphaLISA Acceptor beads for a more efficient, faster, and simpler assay protocol.
With CaptSure™ technology, there is no interference from spiked antibodies, and with a lower background signal, you have better sensitivity and dynamic range, resulting in more – and more accurate – information from all your samples.
The traditional platform for a wide variety of applications, AlphaScreen® SureFire® is a no-wash assay for the detection of phosphorylated proteins in cells. The AlphaScreen SureFire kits use an immunosandwich assay based on a combination of protein A and streptavidin for the capture of the sandwich antibodies.
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