Alpha Donor beads conjugated to Protein A. This bead can be used to capture antibodies for Alpha no-wash protein detection, antibody detection, antibody binding, and other applications.
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Alpha Donor beads coated with Protein A. These beads can be used to capture antibodies and Fc-fusion proteins that bind Protein A, and can be used in conjunction with AlphaScreen, AlphaLISA, or AlphaPlex Acceptor beads to create no-wash assays for:
In a typical Alpha assay, 1 mg of Donor beads is sufficient to run 1,000-2,000 wells using a 25 µL reaction volume. Bead concentration can be adjusted for optimal performance.
|Antibody Conjugates||Protein A|
|Bead Type or Core Bead Type||Alpha Donor|
|Experimental Type||In vitro|
|Product Brand Name||Alpha|
|Shipping Condition||Blue Ice|
|Unit Size||1 mg|
Alpha has been used to study a wide variety of interactions, including protein:protein, protein:peptide, protein:DNA, protein:RNA, protein:carbohydrate, protein:small molecule, receptor:ligand, and nuclear receptor:ligand interactions. Both cell-based and biochemical interactions have been monitored, and applications such as phage display, ELISA, and EMSA (electrophoretic mobility shift assay) have been adapted to Alpha.
This guide presents the simple conversion of an ELISA or other immunoassay to an AlphaLISA® immunoassay.
AlphaScreen® and AlphaLISA® are bead-based assay technologies used to study biomolecular interactions in a microplate format. The acronym “Alpha” stands for Amplified Luminescent Proximity Homogeneous Assay. The assay does not require any washing steps. Binding of proteins or other binding partners captured on the beads leads to an energy transfer from one bead to the other, ultimately producing a luminescent signal.