Recombinant Human CD83 Fc Chimera Protein, CF

Catalog # Availability Size / Price Qty
2044-CD-050
R&D Systems Recombinant Proteins and Enzymes
1 Image
Product Details
FAQs
Supplemental Products
Reviews

Recombinant Human CD83 Fc Chimera Protein, CF Summary

Product Specifications

Purity
>90%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.01 EU per 1 μg of the protein by the LAL method.
Activity
Measured by the ability of the immobilized protein to support the adhesion of human monocyte-derived dendritic cells. When 5 x 104 cells/well are added to human CD83/Fc Chimera coated plates (5 µg/mL, 100 µL/well), approximately 50-75% will adhere after 30 minutes at 37° C.
Optimal dilutions should be determined by each laboratory for each application.
Source
Spodoptera frugiperda, Sf 21 (baculovirus)-derived human CD83 protein
Human CD83
(Thr20 - Ala143)
Accession #Q01151
DIEGRMD Human IgG1
(Pro100 - Lys330)
N-terminus C-terminus
Accession #
N-terminal Sequence
Analysis
Thr20
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
40.7 kDa (monomer)
SDS-PAGE
51-54 kDa, reducing conditions

Product Datasheets

You must select a language.

x

2044-CD

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

2044-CD

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

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.

=
÷

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, 2, 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.
Entrez Gene IDs
9308 (Human); 12522 (Mouse)
Alternate Names
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

FAQs

No product specific FAQs exist for this product, however you may

View all Proteins and Enzyme FAQs
Loading...

Reviews for Recombinant Human CD83 Fc Chimera Protein, CF

There are currently no reviews for this product. Be the first to review Recombinant Human CD83 Fc Chimera Protein, CF and earn rewards!

Have you used Recombinant Human CD83 Fc Chimera Protein, CF?

Submit a review and receive an Amazon gift card.

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review