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AlphaLISA Anti-Human IgG1 Acceptor Beads, 25 mg

AlphaLISA® Acceptor beads conjugated to an anti-human IgG1. This bead can be used to create no-wash AlphaLISA assays for isotyping and other applications.

This part is a replacement for AL153.

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).

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產品尺寸
AL179C
250 ug
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AL179M
5 mg
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AL179R
25 mg
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詳細信息

Immunoglobulin G1 (IgG1) belongs to the immunoglobulin antibody family and is the most abundant IgG subclass. IgG molecules are created and released by plasma B cells and represent an important mediated antibody response against viral pathogens by binding to soluble proteins and membrane protein antigens via variable domain and concomitantly activating effector mechanisms of the innate immune system. IgG1 can bind to C1q, causing complement-dependent cytotoxicity (CDC), and can bind to each of the different Fc receptors resulting in antibody-dependent cell-mediated cytotoxicity (ADCC). Increased IgG1 levels have been associated with inflammatory or autoimmune diseases that involve the central nervous system and IgG1 deficiencies are associated with a weakened immune system and increased susceptibility of infection.

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

These beads can be used in conjunction with Alpha Donor beads for use in AlphaLISA no-wash assays for isotyping or antibody binding studies. In a typical AlphaLISA assay, 1 mg of Acceptor beads is sufficient to run 1,000-2,000 wells using a 50 µL reaction volume.

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.

規格

檢測目標 IgG1
檢測技術 Alpha
自動化兼容 Yes
檢測方法 Alpha
實驗類型 In vitro
產品品牌名稱 AlphaLISA
運輸條件 藍冰
Target Species Human
產品尺寸 25 mg
資源
  • 所有

產品手冊

Drug Discovery Screening Solutions Brochure

Find out about our range of integrated solutions for drug discovery screening in this e-brochure.

Our screening solutions for high-throughput screening, phenotypic screening and data analysis help to streamline drug discovery workflows in labs across the globe. Our portfolio includes automat ...

PDF 4 MB
Alpha Technology Solutions

Product brochure for the Alpha Technology, a versatile, no wash, homogeneous assay technology that's suitable for a broad range of applications.

PDF 2 MB

應用文獻

Applicability of AlphaLISA Technology to a Wide Spectrum of Complex Biological Samples

Alpha (Amplified Luminescent Proximity Homogeneous Assay) technology is a bead-based, no-wash alternative to traditional ELISAs. Instead of detection with an HRP substrate, the Alpha assay signal is generated by the excitation of an Eu+-coated bead that has been ...

PDF 1 MB

應用簡報

Eight Limitations of ELISA and How to Overcome Them Using Alternative Technologies

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 ...

PDF 1 MB

數據單表

Anti-Human Immunoglobulin G Subclass 1 (IgG1) Acceptor Beads

Anti-Human Immunoglobulin G Subclass 1 (IgG1) Acceptor Beads

PDF 216 KB

海報

All-In-One-Well AlphaLISA Assays for Direct Biomarker Quantification in Cell Cultures

Biomarker levels were measured directly in CulturPlates-96 and-384 in a simple, fast, all-in-one-well AlphaLISA assay format. The elimination of transfer and wash steps simplifies cellular assays, reduces variability and significantly reduces hands-on time and costs associated with consumables. Int ...

PDF 288 KB
AlphaLISA Assays are Homogeneous Sensitive Immunoassays for Detection of Analytesin a Variety of Biological Matrices

The AlphaLISA® assay is a homogeneous immunoassay alternative to classical ELISA. AlphaLISA assays were originally utilized to detect analytesin cell cultures upernatants or serum/plasma samples.

PDF 273 KB
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