Human CD200 Antibody

Catalog # Availability Size / Price Qty
MAB27241
MAB27241-SP
Human CD200 Antibody in Data
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Human CD200 Antibody Summary

Species Reactivity
Human
Specificity
Detects human CD200 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant mouse CD200 is observed.
Source
Monoclonal Mouse IgG1 Clone # 325516
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human CD200
Gln31-Gly232
Accession # P41217.3
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Flow Cytometry
0.25 µg/106 cells
See below
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
 

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

Flow Cytometry Detection of CD200 in Human Blood Lymphocytes by Flow Cytometry. View Larger

Detection of CD200 in Human Blood Lymphocytes by Flow Cytometry. Human peripheral blood lymphocytes were stained with Mouse Anti-Human CD19 PE-conjugated Monoclonal Antibody (Catalog # FAB4867P) and either (A) Mouse Anti-Human CD200 Monoclonal Antibody (Catalog # MAB27241) or (B) Mouse IgG1Isotype Control (Catalog # MAB002) followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B).

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.

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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. *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: CD200

CD200, also known as OX-2, is a 45 kDa transmembrane immunoregulatory protein that belongs to the immunoglobulin superfamily (1, 2). The human CD200 cDNA encodes a 278 amino acid (aa) precursor that includes a 30 aa signal sequence, a 202 aa extracellular domain (ECD), a 27 aa transmembrane segment, and a 19 aa cytoplasmic domain. The ECD is composed of one Ig-like V-type domain and one Ig-like C2-type domain (3). A splice variant of CD200 has been described and has a truncated cytoplasmic tail. Within the ECD, human CD200 shares 76% aa sequence identity with mouse and rat CD200. CD200 is widely but not ubiquitously expressed (4). Its receptor (CD200R) is restricted primarily to mast cells, basophils, macrophages, and dendritic cells, which suggests myeloid cell regulation as the major function of CD200 (5‑7). CD200 knockout mice are characterized by increased macrophage number and activation and are predisposed to autoimmune disorders (8). CD200 and CD200R associate via their respective N-terminal Ig-like domains (9). In myeloid cells, CD200R initiates inhibitory signals following receptor‑ligand contact (6, 7, 10). In T cells, however, CD200 functions as a co‑stimulatory molecule independent of the CD28 pathway (11). Several additional CD200R-like molecules have been identified in human and mouse, but their capacity to interact with CD200 is controversial (12, 13). Several viruses encode CD200 homologs which are expressed on infected cells during the lytic phase (14, 15). Like CD200 itself, viral CD200 homologs also suppress myeloid cell activity, enabling increased viral propagation (5, 14‑16).

References
  1. Gorczynski, R.M. (2005) Curr. Opin. Invest. Drugs 6:483.
  2. Barclay, A.N. et al. (2002) Trends Immunol. 23:285.
  3. McCaughan, G.W. et al. (1987) Immunogenetics 25:329.
  4. Wright, G.J. et al. (2001) Immunology 102:173.
  5. Shiratori, I. et al. (2005) J. Immunol. 175:4441.
  6. Cherwinski, H.M. et al. (2005) J. Immunol. 174:1348.
  7. Fallarino, F. et al. (2004) J. Immunol. 173:3748.
  8. Hoek, R.M. et al. (2000) Science 290:1768.
  9. Hatherley, D. and A.N. Barclay (2004) Eur. J. Immunol. 34:1688.
  10. Jenmalm, M.C. et al. (2006) J. Immunol. 176:191.
  11. Borriello, F. et al. (1997) J. Immunol. 158:4548.
  12. Gorczynski, R. et al. (2004) J. Immunol. 172:7744.
  13. Hatherley, D. et al. (2005) J. Immunol. 175:2469.
  14. Foster-Cuevas, M. et al. (2004) J. Virol. 78:7667.
  15. Cameron, C.M. et al. (2005) J. Virol. 79:6052.
  16. Langlais, C.L. et al. (2006) J. Virol. 80:3098.
Entrez Gene IDs
4345 (Human); 17470 (Mouse); 102146004 (Cynomolgus Monkey)
Alternate Names
antigen identified by monoclonal MRC OX-2; CD200 antigenMOX1; CD200 molecule; CD200; MOX1; MOX2; MOX2MRC; MRC OX-2 antigen; MRC; OX-2 membrane glycoprotein; OX-2

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Isotype Controls

Reconstitution Buffers

Secondary Antibodies

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