Human S100A8/S100A9 Heterodimer Alexa Fluor™ Plus 647‑conjugated Antibody

R&D Systems | Catalog # FAB45702AFP647

R&D Systems

Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, ELISA, Intracellular Staining by Flow Cytometry, CyTOF-ready

Label

Alexa Fluor Plus 647 (Excitation = 658 nm, Emission = 675 nm)

Antibody Source

Monoclonal Mouse IgG1 Clone # 900027
View all S100A8/S100A9 Heterodimer Primary Antibodies »

Product Specifications

Specificity

Detects human S100A8/S100A9 heterodimer in direct ELISAs. In direct ELISAs, no detection of recombinant human S100A8 or S100A9 monomers was observered.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Applications

Application
Recommended Usage

CyTOF-ready

Optimal dilution of this antibody should be experimentally determined.

ELISA

Optimal dilution of this antibody should be experimentally determined.

Immunohistochemistry

Optimal dilution of this antibody should be experimentally determined.

Intracellular Staining by Flow Cytometry

Optimal dilution of this antibody should be experimentally determined.

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Flow Cytometry

Formulation, Preparation, and Storage

Formulation

Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied

Background: S100A8/S100A9 Heterodimer

S100A8 (also known as MRP8, Calgranulin A, and CP-10) and S100A9 (also known as MRP14 and Calgranulin B) are pro-inflammatory members of the S100 family of secreted calcium binding proteins (1, 2). They are up-regulated in neutrophils and monocytes at sites of inflammation (e.g. psoriasis, rheumatoid arthritis, cardiac ischemia) and are present at elevated concentrations in rheumatoid arthritis synovial fluid (3-5). The 10 kDa human S100A8 and 14 kDa S100A9 each contain two EF‑hand calcium binding motifs. Human S100A8 shares 57% and 61% amino acid (aa) sequence identity with mouse and rat S100A8, respectively. Human S100A9 shares 57% and 62% amino acid sequence identity with mouse and rat S100A9, respectively (6, 7). In the presence of calcium or zinc, S100A8 and S100A9 associate into non-covalent homodimers and 34-35 kDa heterodimers with each other (8-10). The heterodimer additionally binds and sequesters manganese, thereby restricting the growth of Mn-dependent bacteria (11). The S100A8/A9 heterodimer exhibits functions beyond those performed by the individual proteins. These include binding to fatty acids such as arachidonic acid and promoting astrocyte proliferation (3, 12). S100A8, S100A9, and the heterodimer each promote neutrophil infiltration into sites of inflammation and inflammatory cytokine production by monocytes (4, 5, 9).

References

  1. Averill, M.M. et al. (2012) Arterioscler. Thromb. Vasc. Biol. 32:223.
  2. Vogl, T. et al. (2012) Int. J. Mol. Sci. 13:2893.
  3. Siegenthaler, G. et al. (1997) J. Biol. Chem. 272:9371.
  4. Sunahori, K. et al. (2006) Arthritis Res. Ther. 8:R69.
  5. Volz, H.C. et al. (2012) Basic Res. Cardiol. 107:250.
  6. Odink, K. et al. (1987) Nature 330:80.
  7. Dorin, J.R. et al. (1987) Nature 326:614.
  8. Teigelkamp, S. et al. (1991) J. Biol. Chem. 266:13462.
  9. Ryckman, C. et al. (2003) J. Immunol. 170:3233.
  10. Vogl, T. et al. (2006) Biochim. Biophys. Acta 1763:1298.
  11. Damo, S.M. et al. (2013) Proc. Natl. Acad. Sci. USA 110:3841.
  12. Ryu, M-J. et al. (2012) J. Biol. Chem. 287:22948.

Long Name

S100 Calcium Binding Protein A8/S100 Calcium Binding Protein A9

Alternate Names

Calprotectin

Entrez Gene IDs

6279 (Human)

Gene Symbol

S100A8

UniProt

P05109 (S100A8) and P06702 (S100A9)

Additional S100A8/S100A9 Heterodimer Products

Product Documents

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices


This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

For research use only

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Protocols

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