Integrin beta 2/CD18 Antibody (212701) [Alexa Fluor® 488]

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications Flow
Clone
212701
Clonality
Monoclonal
Host
Mouse
Conjugate
Alexa Fluor 488
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.

Integrin beta 2/CD18 Antibody (212701) [Alexa Fluor® 488] Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant human Integrin  beta 2/CD18
Gln23-Asn700
Accession # AAA59490
Specificity
Detects human Integrin beta 2/CD18 in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human Integrin  beta 1 or recombinant mouse Integrin  alpha 5 is observed.
Isotype
IgG1
Clonality
Monoclonal
Host
Mouse
Gene
ITGB2
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
Application Notes
Flow Cytometry: Please use 0.25-1 ug of conjugated antibody per 10e6 cells.

Packaging, Storage & Formulations

Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Buffer
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Preservative
0.09% Sodium Azide
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.

Notes

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

Alternate Names for Integrin beta 2/CD18 Antibody (212701) [Alexa Fluor® 488]

  • 959 beta subunit precursor)10
  • CD18 antigen
  • CD18
  • CD18beta 2
  • cell surface adhesion glycoprotein (LFA-1
  • CR3
  • Integrin beta 2
  • integrin beta-2
  • integrin, beta 2 (antigen CD18 (p95), lymphocyte function-associated antigen 1;macrophage antigen 1 (mac-1) beta subunit)
  • integrin, beta 2 (complement component 3 receptor 3 and 4 subunit)
  • ITGB2
  • LAD
  • LCAMB
  • leukocyte cell adhesion molecule CD18
  • leukocyte-associated antigens CD18/11A, CD18/11B, CD18/11C
  • LFA-1 beta
  • LFA-1
  • MAC-1 beta
  • MF17
  • MFI7
  • P150
  • p150,95 beta

Background

Integrin alpha X beta 2, also called CD11c/CD18, p150/95 or complement receptor type 4 (CR4), is one of four beta 2 integrins. The non-covalent heterodimer of 150 kDa alpha X/CD11c and 95 kDa beta 2/CD18 integrin subunits is expressed on macrophages, dendritic cells and hairy cell leukemias, with lower amounts on other myeloid cells and activated B, NK and some cytotoxic T cells (1‑7). Like other integrins, alpha X beta 2 has multiple activation states (3). In the presence of divalent cations and "inside-out" signaling, alpha X beta 2 is fully active and extended. The alpha X vWFA or I-domain, which contains the adhesion sites, forms the N-terminal head region with the alpha X beta-propeller and the beta 2 vWFA domain (1, 8). In the inactive state, the heterodimer flexes in the center at the alpha X thigh and calf domains and beta 2 I-EGF domains, impeding access to adhesion sites (1). The 1088 aa human alpha X/CD11c ECD shares 70‑76% aa sequence identity with mouse, rat and canine alpha X while the 678 aa human beta 2/CD18 ECD shares 81‑83% aa sequence identity with mouse, rat, cow, dog, goat, sheep, and pig beta 2. Potential alpha X isoforms containing 719 and 725 aa (as compared to full-length 1163 aa alpha X) lack the vWFA domain and the N-terminus. Active alpha X beta 2 shares some adhesion partners with alpha M beta 2/CD11b/CD18, including complement opsonin fragment iC3b, ICAMs, vWF and fibrinogen, and is expressed on many of the same cells (4‑11). However, alpha M beta 2 activity is often constitutive, while alpha X beta 2 activity requires cell activation (4‑7). alpha X beta 2 also binds osteopontin, Thy-1, plasminogen, heparin, and proteins with abnormally exposed acidic residues (11‑16). The adhesion events are important for proliferation, degranulation, chemotactic migration, and phagocytosis of complement-opsonized particles (5, 6, 9, 11, 12, 16). Mutations of beta 2, especially in the vWFA domain, cause leukocyte adhesion deficiency (LAD-1) and susceptibility to bacterial infections (17).

  1. Corbi, A.L. et al. (1987) EMBO J. 6:4023.
  2. Kishimoto, T.K. et al. (1987) Cell 48:681.
  3. Hynes, R.O. (2002) Cell 110:673.
  4. Arnaout, M.A. (1990) Blood 75:1037.
  5. Postigo, A.A. et al. (1991) J. Exp. Med. 174:1313.
  6. Beyer, M. et al. (2005) Respir. Res. 6:70.
  7. Nicolaou, F. et al. (2003) Blood 101:4033.
  8. Vorup-Jensen, T. et al. (2003) Proc. Natl. Acad. Sci. USA 100:1873.
  9. Bilsland, C.A.G. et al. (1994) J. Immunol. 152:4582.
  10. Pendu, R. et al. (2006) Blood 108:3746.
  11. Sadhu, C. et al. (2007) J. Leukoc. Biol. 81:1395.
  12. Schack, L. et al. (2009) J. Immunol. 182:6943.
  13. Choi, J. et al. (2005) Biochem. Biophys. Res. Commun. 331:557.
  14. Gang, J. et al. (2007) Mol. Cells 24:240.
  15. Vorup-Jensen, T. et al. (2007) J. Biol. Chem. 282:30869.
  16. Vorup-Jensen, T. et al. (2004) Proc. Natl. Acad. Sci. USA 102:1614.
  17. Kishimoto, T.K. et al. (1987) Cell 50:193.

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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Blogs on Integrin beta 2/CD18.

CD11b/CD18 and Neutrophil-Epithelial Interactions as Targets for Anti-Inflammatory Therapies
The beta-2 integrins, a family of four cell surface transmembrane glycoproteins expressed only on leukocytes, include CD11a/CD18, CD11b/CD18, CD11c/CD18, and CD11d/CD18. They consist of a common beta subunit (CD18) and homologous alpha subunits (CD11a...  Read full blog post.

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Bioinformatics

Gene Symbol ITGB2
Uniprot