For research use only; not for diagnostic procedures. All products to be used in accordance with applicable laws and regulations including without limitation, consumption & disposal requirements under European REACH regulations (EC 1907/2006).
The Streptavidin coated AlphaPlex™ 545 (Terbium) Acceptor beads are used to capture a wide variety of biotinylated reagents, ranging from small nucleotides to very large proteins. To avoid steric hindrance, it is recommended to use biotin derivatives including an aliphatic spacer composed of at least six carbons. These beads can be used in conjunction with Alpha Donor beads to create no-wash assays for:
AlphaPlex Acceptor beads are intended to be used in multiplexing assays, in conjunction with AlphaLISA Acceptor beads and Alpha Donor beads. In a typical Alpha assay, 1 mg of Acceptor beads is sufficient to run 1,000-2,000 wells using a 50 µL reaction volume.
Antibody Conjugates | Streptavidin |
---|---|
Automation Compatible | Yes |
Bead Type or Core Bead Type | AlphaPlex Terbium (545) Acceptor |
Detection Method | Alpha |
Product Brand Name | AlphaPlex |
Shipping Condition | Blue Ice |
Unit Size | 250 µg |
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.
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.