Human CD200R1 Antibody
Human CD200R1 Antibody Summary
Accession # AAQ19772
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.
Detection of CD200 R1 in Human Immature Dentritic Cells by Flow Cytometry. Human immature dentritic cells differentated from human peripheral blood mononuclear cell derived CD14+cells treated with 20 ng/mL Recombinant Human IL-4 (Catalog # 204-IL) and 50 ng/mL Recombinant Human GM-CSF (Catalog # 215-GM) for 6-7 days were stained with Goat Anti-Human CD200 R1 Antigen Affinity-purified Polyclonal Antibody(Catalog # AF3414, filled histogram) or isotype control (Catalog # AB-108-C, open histogram), followed by Donkey Anti-Goat IgG (H+L) Phycoerythrin (Catalog # F0107).
Preparation and Storage
- 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.
CD200 R1, also known as OX-2 receptor, is a 90 kDa transmembrane protein in the immunoglobulin superfamily (1‑3). The standard human CD200 R1 cDNA encodes a 325 amino acid (aa) precursor that includes a 28 aa signal sequence, a 215 aa extracellular domain (ECD), a 21 aa transmembrane segment, and a 61 aa cytoplasmic domain. The ECD is composed of one Ig‑like V‑type domain and one Ig‑like C2‑type domain (4). Within the ECD, human CD200 R1 shares 56% aa sequence identity with mouse and rat CD200 R1. Alternate splicing of the human CD200 R1 mRNA generates four isoforms, two of which are truncated in the Ig-C2 domain and are likely secreted. The protein expressed here contains a mature region that is identical to that of the standard form. There is an N‑terminal extension of 25 aa that, in the standard form, is part of the signal sequence. In human, a separate CD200 R12 gene encodes a protein that shares 81% ECD aa identity with CD200 R11. In mouse, at least four genes for CD200 R1-like molecules have been described (4 - 6). CD200 R1 expression is restricted primarily to mast cells, basophils, macrophages, and dendritic cells (7‑9), while its ligand, CD200, is widely distributed (10). Disruption of this receptor-ligand system by knockout of the CD200 gene in mice leads to increased macrophage number and activation and predisposition to autoimmune disorders (11). Association of CD200 with CD200 R1 takes place between their respective N‑terminal Ig‑like domains (12). The capacity of CD200 R1-like molecules to interact with CD200 is controversial (5, 13). CD200 R1 propagates inhibitory signals despite its lacking a cytoplasmic ITIM (immunoreceptor tyrosine-based inhibitory motif) (8, 9, 14, 15) CD200 R1-like molecules, in contrast, are potentially activating receptors by means of their association with DAP12 (4, 6).
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- Wright, G.J. et al. (2001) Immunology 102:173.
- Hoek, R.M. et al. (2000) Science 290:1768.
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- Gorczynski, R. et al. (2004) J. Immunol. 172:7744.
- Jenmalm, M.C. et al. (2006) J. Immunol. 176:191.
- Zhang, S. et al. (2004) J. Immunol. 173:6786.
Citations for Human CD200R1 Antibody
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.
Citations: Showing 1 - 2
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MicroRNA-129-5p-regulated microglial expression of the surface receptor CD200R1 controls neuroinflammation
Authors: V Singh, S Kushwaha, JA Ansari, S Gangopadhy, SK Mishra, RK Dey, AK Giri, S Patnaik, D Ghosh
The Journal of Biological Chemistry, 2021-12-22;0(0):101521.
Sample Types: Cell Lysates
Applications: Western Blot
Multiple inhibitory ligands induce impaired T-cell immunologic synapse function in chronic lymphocytic leukemia that can be blocked with lenalidomide: establishing a reversible immune evasion mechanism in human cancer.
Authors: Ramsay, Alan G, Clear, Andrew J, Fatah, Rewas, Gribben, John G
Sample Types: Whole Cells
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