CD200/OX2 Antibody [Alexa Fluor® 594]

• Reactivity: Mu, Rt
• Applications: WB, IHC
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Alexa Fluor 594

CD200/OX2 Antibody [Alexa Fluor® 594] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant mouse CD200
  Gln31-Gly232
  Accession # O54901
• Specificity: Detects mouse CD200 in direct ELISAs and mouse CD200 and rat CD200 Western blots. In direct ELISAs, approximately 50% cross-reactivity with recombinant human CD200 is observed.
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Gene: CD200
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for CD200/OX2 Antibody [Alexa Fluor® 594]

• 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

Background

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).

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: CD200