hh Human/Mouse/Rat CD200 Antibody AF2724: R&D Systems

Human/Mouse/Rat CD200 Antibody

(5 citations)   
  • Species Reactivity
    Human, Mouse, Rat
  • Specificity
    Detects human CD200 in direct ELISAs and Western blots.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human CD200
    Gln31-Gly232
    Accession # P41217
  • 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
  • Western Blot
    0.5 µg/mL
    See below
  • Simple Western
    10 µg/mL
    See below
  • Flow Cytometry
    0.25 µg/106 cells
    Human whole blood CD19+ B cells
  • Immunohistochemistry
    5-15 µg/mL
    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 Examples
Detection of Human, Mouse, and Rat CD200 by Western Blot. Western blot shows lysates of human, mouse, and rat brain (cortex) tissue, human tonsil tissue, and human dendritic cells (mature). PVDF membrane was probed with 0.5 µg/mL of Goat Anti-Human/Mouse/Rat CD200 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2724) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for CD200 at approximately 42 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Immunohistochemistry
CD200 in Human Placenta. CD200 was detected in immersion fixed paraffin-embedded sections of human placenta using Goat Anti-Human/Mouse/Rat CD200 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2724) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Detection of Human, Mouse, and Rat CD200 by Simple WesternTM. Simple Western lane view shows lysates of human, mouse, and rat brain (cortex) tissue, loaded at 0.2 mg/mL. A specific band was detected for CD200 at approximately 70-75 kDa (as indicated) using 10 µg/mL of Goat Anti-Human/Mouse/Rat CD200 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2724) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile 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: 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 costimulatory 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
Related Research Areas
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

5 Citations: Showing 1 - 5
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Species
Applications
Sample Type
  1. CD200-positive cancer associated fibroblasts augment the sensitivity of Epidermal Growth Factor Receptor mutation-positive lung adenocarcinomas to EGFR Tyrosine kinase inhibitors
    Authors: M Ishibashi, S Neri, H Hashimoto, T Miyashita, T Yoshida, Y Nakamura, H Udagawa, K Kirita, S Matsumoto, S Umemura, K Yoh, S Niho, M Tsuboi, K Masutomi, K Goto, A Ochiai, G Ishii
    Sci Rep, 2017;7(0):46662.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC
  2. Utility of CD200 immunostaining in the diagnosis of primary mediastinal large B cell lymphoma: comparison with MAL, CD23, and other markers.
    Authors: Dorfman, David M, Shahsafaei, Aliakbar, Alonso, Miguel A
    Mod Pathol, 2012;25(12):1637-43.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC Paraffin-embedded
  3. Bald scalp in men with androgenetic alopecia retains hair follicle stem cells but lacks CD200-rich and CD34-positive hair follicle progenitor cells.
    Authors: Garza LA, Yang CC, Zhao T, Blatt HB, Lee M, He H, Stanton DC, Carrasco L, Spiegel JH, Tobias JW, Cotsarelis G
    J. Clin. Invest., 2011;121(2):613-22.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC Paraffin-embedded
  4. Cell-surface markers for the isolation of pancreatic cell types derived from human embryonic stem cells.
    Authors: Kelly OG, Chan MY, Martinson LA
    Nat. Biotechnol., 2011;29(8):750-6.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC Frozen
  5. CD200 is induced by ERK and is a potential therapeutic target in melanoma.
    Authors: Petermann KB, Rozenberg GI, Zedek D, Groben P, McKinnon K, Buehler C, Kim WY, Shields JM, Penland S, Bear JE, Thomas NE, Serody JS, Sharpless NE
    J. Clin. Invest., 2007;117(12):3922-3929.
    Species: Human
    Sample Type: Whole Cells
    Application: ICC
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