Integrin alpha 2b/CD41 Antibody (2530A) [Alexa Fluor® 350]

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications Flow
Clone
2530A
Clonality
Monoclonal
Host
Rabbit
Conjugate
Alexa Fluor 350

Integrin alpha 2b/CD41 Antibody (2530A) [Alexa Fluor® 350] Summary

Additional Information
Recombinant Monoclonal Antibody.
Immunogen
Chinese Hamster Ovary cell line, CHO-derived heterodimer of Human Integrin alpha 2b (Leu32-Arg993, Accession P08514) and Human Integrin beta 3 (Gly27-Asp718, Accession P05106)
Specificity
Detects Human Integrin alpha 2b beta 3 heterodimer in direct ELISAs. In direct ELISAs, no cross-reactivity with recomabint human (rh) Integrin alpha 2b, rhIntegrin alpha 5, rhIntegrin alpha 5 beta 6, rhIntegrin alpha 8 beta 1, rhIntegrin beta 1, rhIntegrin beta 2, rhIntegrin beta 3, rhIntegrin beta 5, rhIntegrin beta 7, and recombinant mouse Integrin alpha 2b beta 3.
Source
N/A
Isotype
IgG
Clonality
Monoclonal
Host
Rabbit
Purity Statement
Protein A or G purified from cell culture supernatant
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Flow Cytometry 0.25-1 ug/10^6 cells

Packaging, Storage & Formulations

Storage
Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.
Buffer
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Integrin alpha 2b/CD41 Antibody (2530A) [Alexa Fluor® 350]

  • CD41 antigen
  • CD41
  • CD41BHPA3
  • GP2B
  • GP2Bintegrin alpha-IIb
  • GPalpha IIb
  • GPIIb
  • GTA
  • HPA3
  • Integrin alpha 2b
  • integrin, alpha 2b (platelet glycoprotein IIb of IIb/IIIa complex, antigenCD41)
  • integrin, alpha 2b (platelet glycoprotein IIb of IIb/IIIa complex, antigenCD41B)
  • ITGA2b
  • ITGAB
  • platelet fibrinogen receptor, alpha subunit
  • Platelet membrane glycoprotein IIb
  • platelet-specific antigen BAK

Background

Integrin alpha 2b beta 3 (also alpha IIb beta 3 or GPIIbIIIa) is the only alpha 2b integrin and shares the beta 3 subunit only with alpha V beta 3 (1‑3). It is the non‑covalent heterodimer of type I transmembrane subunits, alpha 2b/CD41 (present as a disulfide‑linked complex of 114 kDa heavy and 22 kDa light chains) and 93 kDa beta 3/CD61 (1‑3). It is the most abundant integrin expressed by megakaryocytes and platelets, both on the surface and within alpha granules (1, 2). Deficiencies of alpha 2b beta 3 produce Glanzmann thrombasthenia, a potentially serious bleeding disorder (4). In its constitutively inactive state, alpha 2b beta 3 is flexed within the extracellular domains. Activation, either by intracellular signaling or by Mg2+ or Mn2+ binding, extends the integrin to expose the ligand binding site created by interaction of the beta 3 vWFA domain with the alpha 2b  beta ‑propeller structure (1). The 962 aa human alpha 2b ECD shares 78‑83% aa sequence identity with mouse, rat, canine, equine and porcine  alpha 2b while the 685 aa human  beta 3 ECD shares 95% aa identity with horse and dog, and 89‑92% aa identity with mouse, rat and porcine beta 3. It is unclear whether splice variants of beta 3 that differ in the cytoplasmic domain are expressed significantly in platelets (5‑7). However, platelet expression of a beta 3 splice variant that produces a soluble 60 kDa beta 3 isoform, and an alpha 2b isoform lacking aa 948‑982, have been reported (7, 8). Active cell surface alpha 2b beta 3 adheres to fibrinogen, mediating platelet/platelet interactions that initiate a cascade of platelet activation and aggregation, extracellular matrix adhesion, formation of thrombi and clot retraction (1). It also binds matrix proteins that have an RGD motif, including fibronectin, plasminogen, prothrombin, thrombospondin and vitronectin (1, 2). Targeting of alpha 2b beta 3 by therapeutic antibodies or small molecules can inhibit formation of thrombi in patients with acute coronary syndrome, and potentially inhibits tumor angiogenesis and metastasis by blocking interaction of platelet alpha 2b beta 3 with tumor cells (1, 9).

  1. Kasirer-Friede, A. et al. (2007) Immunol. Rev. 218:247.
  2. Poncz, M. et al. (1987) J. Biol. Chem. 262:8476.
  3. Fitzgerald, L.A. et al. (1987) J. Biol. Chem. 262:3936.
  4. Franchini, M. et al. (2010) Clin. Chim. Acta 411:1.
  5. Kumar, C. S. et al. (1987) J. Biol. Chem. 272:16390.
  6. van Kuppevelt, H. et al. (1989) Proc. Natl. Acad. Sci. USA 86:5415.
  7. Djaffar, I. et al. (1994) Biochem. J. 300:67.
  8. Bray, P.F. et al. (1990) J. Biol. Chem. 265:9587.
  9. Erpenbeck, L. and M.P. Schon (2010) Blood 115:3427.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Secondary Antibodies

 

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Other Available Formats

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