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Recombinant Mouse CD200 Fc Chimera Protein, CF

Catalog #: 3355-CD
6 Citations Datasheet / COA / SDS
Catalog # Availability Size / Price Qty
3355-CD-050
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Citations (6)
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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Mouse CD200 Fc Chimera Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its binding ability in a functional ELISA. When Recombinant Mouse CD200 R1 Fc Chimera (Catalog # 2554-CD) is immobilized at 2 μg/mL (100 μL/well), the concentration of Recombinant Mouse CD200 Fc Chimera that produces 50% of the optimal binding response is appoximately 5‑30 ng/mL.
Source
Mouse myeloma cell line, NS0-derived mouse CD200 protein
Mouse CD200
(Gln31-Gly 232)
Accession #O54901		 IEGRMD Human IgG1
(Pro100-Lys330)
N-terminus C-terminus
Accession #
O54901
N-terminal Sequence
Analysis
No results obtained: Gln31 predicted
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
49 kDa (monomer)
SDS-PAGE
65-75 kDa, reducing conditions

Product Datasheets

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3355-CD

Product Datasheet
COA
SDS

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.

3355-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.

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Background: CD200

CD200, also known as OX-2, is a 45 kDa type I transmembrane immunoregulatory protein that belongs to the immunoglobulin superfamily (1, 2). The mouse 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-likeV-type and one Ig-like C2-type domain (3). Splice variants of CD200 have been described in human but not in mouse. Within the ECD, mouse CD200 shares 76% and 94% aa sequence identity with human and rat CD200, respectively. 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 CD200 R associate via their respective N-terminal Ig-like domains (9). In myeloid cells, CD200 R initiates inhibitory signals following receptor-ligand contact (6, 7, 10). In T cells, CD200 functions as a costimulatory molecule that is independent of the CD28 pathway (11). Several additional CD200 R-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. Chen, Z. et al. (1997) Biochim. Biophys. Acta 1362:6.
  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

Citations for Recombinant Mouse CD200 Fc Chimera Protein, CF

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.

6 Citations: Showing 1 - 6
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  1. CD200-CD200R immune checkpoint engagement regulates ILC2 effector function and ameliorates lung inflammation in asthma
    Authors: P Shafiei-Ja, DG Helou, BP Hurrell, E Howard, C Quach, JD Painter, L Galle-Treg, M Li, YE Loh, O Akbari
    Nature Communications, 2021-05-05;12(1):2526.
    Species: Mouse
    Sample Types: In Vivo
    Applications: In Vivo
  2. CD200R deletion promotes a neutrophil niche for Francisella tularensis and increases infectious burden and mortality
    Authors: J Casulli, ME Fife, SA Houston, S Rossi, J Dow, ED Williamson, GC Clark, T Hussell, RV D'Elia, MA Travis
    Nat Commun, 2019-05-09;10(1):2121.
    Species: Mouse
    Sample Types: In Vivo
    Applications: In Vivo
  3. CD200 Modulates S. aureus-Induced Innate Immune Responses Through Suppressing p38 Signaling
    Authors: B Zhu, Y Yu, X Liu, Q Han, Y Kang, L Shi
    Int J Mol Sci, 2019-02-03;20(3):.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  4. CD200R1 agonist attenuates glial activation, inflammatory reactions, and hypersensitivity immediately after its intrathecal application in a rat neuropathic pain model.
    Authors: Hernangomez M, Klusakova I, Joukal M, Hradilova-Svizenska I, Guaza C, Dubovy P
    J Neuroinflammation, 2016-02-18;13(1):43.
    Species: Rat
    Sample Types: In Vivo
    Applications: In Vivo
  5. Dok2 mediates the CD200Fc attenuation of Abeta-induced changes in glia.
    Authors: Lyons A, Downer E, Costello D, Murphy N, Lynch M
    J Neuroinflammation, 2012-05-29;9(0):107.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  6. T cells dampen innate immune responses through inhibition of NLRP1 and NLRP3 inflammasomes.
    Authors: Guarda G, Dostert C, Staehli F, Cabalzar K, Castillo R, Tardivel A, Schneider P, Tschopp J
    Nature, 2009-06-03;460(7252):269-73.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay

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