PerkinElmer
check quantity

Anti-GFP Alpha Donor Beads, 5 mg

Alpha Donor beads conjugated to anti-GFP antibody. The antibody is a mouse monoclonal antibody that recognizes wildtype and recombinant GFP (rGFP), and cross-reacts with eGFP. These beads can be used to capture GFP-tagged proteins for AlphaScreen, AlphaLISA, and AlphaPlex no-wash assays.

项目已成功添加到购物车

For research use only. Not for use in diagnostic procedures.

部件号
产品尺寸
AS112D
1 mg
更多
AS112M
5 mg
更多
AS112R
25 mg
更多
立即购买

请输入有效的数量

请登录后再添加至收藏夹

购物车为空

详情 信息

These beads can be used in conjunction with AlphaScreen, AlphaLISA, or AlphaPlex beads to create Alpha no-wash immunoassays for:

  • Protein-protein interaction assays
  • Protein detection assays
  • Enzymatic assays
  • Other immunoassays

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.

Features:

  • No-wash steps, no separation steps
  • Ease-of-use: few addition steps, fast assay development
  • Broad range of affinities: detect strong or weak interactions, from pM to mM affinity
  • Distance: measure very large protein or antibody complexes – spanning up to 200 nm or more
  • High avidity: multiple binding sites on each bead enables use of nanomolar concentrations of antibodies or proteins, as well as use of low affinity binders

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. As the name implies, some of the key features of these technologies are that they are non-radioactive, homogeneous proximity assays. Binding of molecules captured on the beads leads to an energy transfer from one bead to the other, ultimately producing a luminescent/fluorescent signal. To understand how a signal is produced, one must begin with an understanding of the beads. AlphaScreen and AlphaLISA assays require two bead types: Donor beads and Acceptor beads. Each bead type contains a different proprietary mixture of chemicals, which are key elements of the AlphaScreen technology. Donor beads contain a photosensitizer, phthalocyanine, which converts ambient oxygen to an excited and reactive form of O2, singlet oxygen, upon illumination at 680 nm. Please note that singlet oxygen is not a radical; it is molecular oxygen with a single excited electron. Like other excited molecules, singlet oxygen has a limited lifetime prior to falling back to ground state. Within its 4 µsec half-life, singlet oxygen can diffuse approximately 200 nm in solution. If an Acceptor bead is within that proximity, energy is transferred from the singlet oxygen to thioxene derivatives within the Acceptor bead, subsequently culminating in light production at 520-620 nm (AlphaScreen) or at 615 nm (AlphaLISA). In the absence of an Acceptor bead, singlet oxygen falls to ground state and no signal is produced. This proximity-dependent chemical energy transfer is the basis for AlphaScreen's homogeneous nature.

规格

抗体偶联物 Anti-GFP
自动化兼容 Yes
珠型或核心珠型 Alpha Donor
检测方法 Alpha
产品品牌名称 AlphaLISA
运输条件 蓝冰
产品尺寸 5 mg
资源,活动及更多信息
  • 所有

产品手册

指南

Alpha Protein-Protein Interaction Quick Start Guide

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.

PDF 380 KB
ELISA to AlphaLISA Immunoassay Conversion Guide

This guide presents the simple conversion of an ELISA or other immunoassay to an AlphaLISA® immunoassay.

PDF 1 MB
User's Guide To Alpha Assays Protein:Protein Interactions

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.

PDF 3 MB