Human Integrin  alpha 2/CD49b Biotinylated Antibody

Clone HAS3 was used by HLDA to establish CD designation
Catalog # Availability Size / Price Qty
BAM1233
Integrin  alpha 2/CD49b in HT1080 Human Cell Line.
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Human Integrin  alpha 2/CD49b Biotinylated Antibody Summary

Species Reactivity
Human
Specificity
Detects human Integrin alpha 2/CD49b.
Source
Monoclonal Mouse IgG2A Clone # HAS3
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Human keratinocytes
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Label
Biotin

Applications

Recommended Concentration
Sample
Flow Cytometry
2.5 µg/106 cells
HT1080 human fibrosarcoma cell line
Immunoprecipitation
Tenchini, M.L. et al. (1993) Cell Adhesion Communication 1:55.
 
Immunocytochemistry
8-25 µg/mL
Immersion fixed HT1080 human fibrosarcoma cell line

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Example

Immunocytochemistry View Larger

Integrin  alpha 2/CD49b in HT1080 Human Cell Line. Integrin  alpha 2/CD49b was detected in immersion fixed HT1080 human fibrosarcoma cell line (positive staining) and Daudi human Burkitt's lymphoma cell line (negative staining) using Mouse Anti-Human Integrin  alpha 2/CD49b Biotinylated Monoclonal Antibody (Catalog # BAM1233) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; NL007) and counterstained with DAPI (blue). Specific staining was localized to cell surface and cytoplasm. Staining was performed using our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Integrin alpha 2/CD49b

Integrin alpha 2 is one of twelve integrin family alpha subunits that share the beta 1 subunit (1‑3). Integrin alpha 2 beta 1 is the non-covalent heterodimer of 160 kDa alpha 2 (CD49b) and 130 kDa beta 1 (CD29) type I transmembrane glycoprotein subunits and is one of six very late antigens on activated T cells, designated VLA2 (3). The alpha 2 extracellular domain (ECD) contains an I (inserted) domain which includes the ligand binding site (2, 3). The beta 1 ECD contains a vWFA domain, which participates in binding. Each subunit then has a transmembrane sequence and a short cytoplasmic tail. The dimer is folded when it is least active. Divalent cations and intracellular (inside-out) signaling convert it to its most active, extended and open conformation (1, 2). The 1102 amino acid (aa) human alpha 2 extracellular domain (ECD) shares 83‑89% aa sequence identity with mouse, rat, canine, bovine and equine alpha 2. The I domain-containing beta 1 integrins ( alpha 1 beta 1, alpha 2 beta 1, alpha 10 beta 1 and alpha 11 beta 1) all bind collagens, with alpha 2 beta 1 preferring collagens I‑III (4, 5). Platelet alpha 2 beta 1, also called GPIa, cooperates with another adhesion protein, GPVI, to coordinate platelet collagen binding and activation (3, 6, 7). Other alpha 2 beta 1 ligands include laminin, decorin, E-cadherin, and collagen-like regions of collectin molecules such as C1q (4). Adhesion is synergized by crosstalk with syndecan-1 or HGF R/c-Met, and antagonized by crosstalk with Integrin alpha 1 beta 1 (8‑10). In addition to expression on selected hematopoietic cells, alpha 2 beta 1 is present on a wide variety of non-hematopoietic cells (4). Mice deficient in the alpha 2 subunit have defects in innate immune responses, wound mast cell infiltration and angiogenesis, and platelet responses to collagen (6, 11, 12). In innate immunity, alpha 2 beta 1 binding to C1q initiates the complement cascade and costimulates mast cell activation, triggering neutrophil influx (4, 12).

References
  1. Takada, Y. et al. (2007) Genome Biol. 8:215.
  2. Luo, B-H. et al. (2007) Annu. Rev. Immunol. 25:619.
  3. Takada, Y. and M.E. Hemler (1989) J. Cell Biol. 109:397.
  4. Zutter, M.M. and B.T Edelson (2007) Immunobiology 212:343.
  5. McCall-Culbreath, K.D. and M.M. Zutter (2008) Curr. Drug Targets 9:139.
  6. Sarratt, K.L. et al. (2005) Blood 106:1268.
  7. Lecut, C. et al. (2005) Thromb. Haemost. 94:107.
  8. Vuoriluoto, K. et al. (2008) Exp. Cell Res. 314:3369.
  9. McCall-Culbreath, K.D. et al. (2008) Blood 111:3562.
  10. Abair, T.D. et al. (2008) Exp. Cell Res. 314:3593.
  11. Zweers, M. et al. (2006) J. Invest. Dermatol. 127:467.
  12. Edelson, B.T. et al. 2006) Blood 107:143.
Entrez Gene IDs
3673 (Human); 16398 (Mouse)
Alternate Names
alpha-2 subunit; CD49b antigen; CD49b; Integrin alpha 2; integrin, alpha 2 (CD49B, alpha 2 subunit of VLA-2 receptor); ITGA2; VLA 2; VLA-2 alpha

Product Datasheets

Citation for Human Integrin  alpha 2/CD49b Biotinylated Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Glycosylation modulates melanoma cell alpha2beta1 and alpha3beta1 integrin interactions with type IV collagen.
    Authors: Stawikowski M, Aukszi B, Stawikowska R, Cudic M, Fields G
    J Biol Chem, 2014;289(31):21591-604.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC

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Human Integrin  alpha 2/CD49b Biotinylated Antibody
By Anonymous on 02/22/2022
Application: Immunocytochemistry/Immunofluorescence Sample Tested: HeLa cells Species: Human