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Human CD83 Antibody

Catalog # AF2044 | R&D Systems, Inc. a Bio-Techne Brand
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AF2044
AF2044-SP

Key Product Details

Species Reactivity

Human

Applications

CyTOF-ready, Flow Cytometry, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG

Product Summary for Human CD83 Antibody

Immunogen

Mouse myeloma cell line NS0-derived recombinant human CD83
Thr20-Ala143
Accession # Q01151

Specificity

Detects human CD83 in direct ELISAs and Western blots. In direct ELISAs and Western blots, less than 1% cross-reactivity with recombinant mouse CD83 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Applications for Human CD83 Antibody

Application
Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

2.5 µg/106 cells
Sample: Human monocyte-derived mature dendritic cells treated with LPS, Recombinant Human TNF‑ alpha (Catalog # 210‑TA), and Recombinant Human IL‑1 beta/IL‑1F2 (Catalog # 201-LB)

Western Blot

0.1 µg/mL
Sample: Recombinant Human CD83 Fc Chimera (Catalog # 2044-CD)
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Reconstitution Buffer Available:
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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

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: CD83

Human CD83 is a 40 - 50 kDa member of the Siglec (or sialic-acid-binding immunoglobulin-like lectin) family of transmembrane proteins (1-3). CD83 is synthesized as a type I transmembrane glycoprotein that contains a 125 amino acid (aa) extracellular region, a 22 aa transmembrane segment, and 39 aa cytoplasmic domain. It contains one V type Ig-like domain in the extracellular region with no inhibitory cytoplasmic motif(s). Although in vitro studies suggest CD83 may form membrane-bound covalent homodimers, in vivo this does not appear to be the case (1, 4). In the extracellular region, mouse and human CD83 are 66% aa identical (1, 2, 4, 5). Relative to human, mouse CD83 is 11 aa shorter in its extracellular domain and is expressed as a 30-35 kDa protein (1, 4, 5). Human CD83 is active in the mouse system (4). One alternate splice form has been reported. This leads to a small monomeric soluble form of 74 aa that includes aa’s 20-52 and 164-205 (6, 7). In human, proteolytic cleavage and solubilization of CD83 has also been suggested, and this could lead to dimeric circulating CD83 (4, 6). CD83 is a primary marker for dendritic cells (3, 6, 8). It is also found on B cells (6, 9), neutrophils (10), monocytes, and macrophages (11). Except for dendritic cells, CD83 expression is often transient. CD83 binds to sialic acids on target cells (12). The function of CD83 is only now becoming clear. Membrane CD83 appears to promote T cell proliferation, particularly of CD8+ cytotoxic T cells (13, 14). Soluble CD83, however, appears to be immunosuppressive and blocks T cell activation (15, 16). On monocytes, CD83 is suggested to drive monocytes into a fibrocyte phenotype (13). A lack of membrane-expressed CD83 leads to an unusual IL-4/IL-10 producing CD4+ T cell phenotype (17).

References

  1. Zhou, L-J. et al. (1992) J. Immunol. 149:735.
  2. Kozlow, E.J. et al. (1993) Blood 81:454.
  3. Fujimoto, Y and T.F. Tedder (2006) J. Med. Dent. Sci. 53:85.
  4. Lechmann, M. et al. (2005) Biochem. Biophys. Res. Commun. 329:132.
  5. Berchtold, S. et. al. (1999) FEBS Lett. 461:211.
  6. Hock, B.D. et al. (2001) Int. Immunol. 13:959.
  7. Dudziak, D. et al. (2005) J. Immunol. 174:6672.
  8. Velten, F.W. et al. (2007) Mol. Immunol. 44:1544.
  9. Cramer, S.O. et al. (2000) Int. Immunol. 12:1347.
  10. Yamashiro, S. et al. (2000) Blood 96:3958.
  11. Cao, W. et al. (2005) Biochem. J. 385:85.
  12. Scholler, N. et al. (2001) J. Immunol. 166:3865.
  13. Scholler, N. et al. (2002) J. Immunol. 168:2599.
  14. Hirano, N. et al. (2006) Blood 107:1528.
  15. Kotzor, N. et al. (2004) Immunobiology 209:129.
  16. Zinser, E. et al. (2006) Immunobiology 211:449.
  17. Garcia-Martinez, L.F. et al. (2004) J. Immunol. 173:2995.

Alternate Names

BL11, CD83, HB15

Entrez Gene IDs

9308 (Human); 12522 (Mouse)

Gene Symbol

CD83

UniProt

Product Documents for Human CD83 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human CD83 Antibody

For research use only

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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