Biotinylated Human CD200 R1 / CRTR2 Protein, Fc,Avitag™

Biotinylated Human CD200 R1 / CRTR2 Protein, Fc,Avitag™

• Background: Cell surface glycoprotein CD200 receptor 1 is a protein that in humans is encoded by the CD200R1 gene. This gene encodes a receptor for the OX-2 membrane glycoprotein. Both the receptor and substrate are cell surface glycoproteins containing two immunoglobulin-like domains. This receptor is restricted to the surfaces of myeloid lineage cells and the receptor-substrate interaction may function as a myeloid downregulatory signal. CD200 and its receptor CD200R are both type-1 membrane glycoproteins, which are members of the immunoglobulin superfamily (IgSF). Besides the inhibitory effect on macrophages, CD200/CD200R also play an important role in regulating the regulatory T cells, allergicreaction, autoimmune diseases, allograft, neurological diseases and other autoimmune-related diseases. The interaction between CD200, which is mainly present in neurons but also in astrocytes, and CD200R1, which is mainly present in microglia, is one of the mechanisms involved in keeping the microglial proinflammatory phenotype under control in physiological conditions. Alterations in the expression of CD200 and CD200R1 have been described in neurodegenerative diseases, but little is known about the mechanism of regulation of these proteins under physiological or pathological conditions.
• Description: Biotinylated Human CD200 R1, Fc,Avitag (CR2-H82F4) is expressed from human 293 cells (HEK293). It contains AA Ala 27 - Leu 266 (Accession # AAQ19772.1).
• Specifications: This protein carries a human IgG1 Fc tag at the C-terminus, followed by an Avi tag (Avitag™). The protein has a calculated MW of 55.8 kDa. The protein migrates as 70-115 KDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
• Expression Region: Ala 27 - Leu 266
• Host: HEK 293
• Target: CD200 R1
• Conjugation: Biotin-labeled
• Tag: C-Fc & C-Avi
• Source: Human
• Stability: -20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution._x000D_For long term storage, the product should be stored at lyophilized state at -20°C or lower.
• Endotoxin: 1.0 EU per μg
• Purity: 95%
• Bioactivity: Immobilized Human CD200, Fc Tag (Cat. No. OX2-H5251) at 2 μg/mL (100 μL/well) can bind Biotinylated Human CD200 R1, Fc,Avitag (Cat. No. CR2-H82F4) with a linear range of 0.5-7.8 ng/mL (QC tested).
• Format: Powder
• Buffer: Tris with Glycine, Arginine and NaCl, pH7.5
• Additives: Trehalose
• Molecular Weight: 55.8 kDa
• Shipping Conditions: Room Temperature
• Storage Conditions: -20°C