CD83 Antibody [Alexa Fluor® 350]

• Reactivity: Mu
• Applications: WB, Flow, B/N, CyTOF-ready, ICC/IF
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Alexa Fluor 350

CD83 Antibody [Alexa Fluor® 350] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant mouse CD83
  Met22-Ala134
  Accession # O88324
• Specificity: Detects mouse CD83 in direct ELISAs and Western blots.
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Adhesion Blockade
  • CyTOF-ready
  • Flow Cytometry
  • Immunocytochemistry
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

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

Alternate Names for CD83 Antibody [Alexa Fluor® 350]

• B-cell activation protein
• BL11
• BL11CD83 antigen
• CD83 antigen (activated B lymphocytes, immunoglobulin superfamily)
• CD83 molecule
• CD83
• Cell surface protein HB15
• cell-surface glycoprotein
• HB15
• HB15hCD83

Background

Mouse CD83 is a 30‑35 kDa member of the Siglec (or sialic-acid-binding immunoglobulin-like lectin) family of transmembrane proteins (1, 2, 3). CD83 is synthesized as a type I transmembrane glycoprotein that contains a 114 amino acid (aa) extracellular region, a 22 aa transmembrane segment, and a 39 aa cytoplasmic domain. It contains one V type Ig-like domain in the extracellular region with no inhibitory cytoplasmic motif(s). In the extracellular region, mouse and human CD83 are 66% aa identical (1, 2, 4). Relative to mouse, human CD83 has an 11 aa insertion in its extracellular domain and is expressed as a 45‑55 kDa protein (1, 4, 5, 6). No alternate splice variants have been reported for mouse. In human, however, one soluble splice form has been reported and proteolytic processing is suggested to generate a second circulating isoform (6, 7). Notably, although soluble CD83 has the potential to exist as either a monomer or disulfide-linked dimer, both show immunosuppressive activity (4, 8, 9). Membrane CD83, by contrast, is immunostimulatory (10). CD83 is a primary marker for dendritic cells (3, 5, 6). It is also found on B cells (6, 11), neutrophils (12), monocytes and macrophages (13). Except for dendritic cells, CD83 expression is often transient. CD83 binds to sialic acids on monocytes (3). The function of CD83 is only now becoming clear. As noted, membrane-immobilized CD83 appears to promote T cell proliferation, particularly of CD8⁺ cytotoxic T cells (14). On monocytes, CD83 may also drive monocytes into a fibrocyte phenotype (14). And a lack of membrane-expressed CD83 leads to an unusual IL-4/IL-10 producing CD4⁺ T cell phenotype (15).

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.