PROVETOP

Biotinylated Human CD200 R1/CRTR2 Protein

Catalog No: CD200-HB003

Species
Human
Expression System
HEK293
Tag
His, Avi
Activity
Activity verified

Product overview

Recombinant Biotinylated Human CD200 R1/CRTR2 Protein is expressed in HEK293 cells with a His tag and Avi tag at the C-terminus. It contains amino acid residues Ala27-Leu266 (accession: AAQ19772).

Product Details

Molecular Aliases
CD200R; CRTR2; MOX2R; OX2R; CD200 R1; CD200 receptor 1; HCRTR2; MOX2 receptor; CD200R1
Protein Length
Ala27-Leu266
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 29.7 kDa. Due to glycosylation, the protein migrates to 52-70 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
State
Lyophilized
Storage Conditions
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Reconstitution Advice
Dissolve the lyophilized protein in distilled water. Please refer to the Certificate of Analysis for detailed instructions.

Data Display

Bis-Tris PAGE
CD200-HB003 Bis-Tris-PAGE-white result

Biotinylated Human CD200 R1 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
CD200-HB003 SEC-HPLC result

The purity of Biotinylated Human CD200 R1 is greater than 95% as determined by SEC-HPLC.

ELISA
CD200-HB003 ELISA result

Immobilized Biotinylated Human CD200 R1, His Tag at 1μg/ml (100μl/well) on the streptavidin precoated plate (5μg/ml). Dose response curve for Human CD200, hFc Tag with the EC50 of 2.2ng/ml determined by ELISA (QC Test).

Background

CD200Fc, a chimeric molecule including the extracellular domain of CD200 and a murine IgG2a Fc region, regulates immune responses following engagement of a cell surface receptor, CD200R, expressed on cells of the myeloid and T cell lineage. A recent report focused attention on a family of CD200Rs, but concluded that only one member used CD200 as its ligand.

References

  1. Gorczynski R, Chen Z, Kai Y, Lee L, Wong S, Marsden PA. CD200 is a ligand for all members of the CD200R family of immunoregulatory molecules. J Immunol. 2004;172(12):7744-7749. doi:10.4049/jimmunol.172.12.7744

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