Human CD200R HEK293 Overexpression Lysate

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Human CD200R HEK293 Overexpression Lysate: Product Information

Product Description
This Human CD200R overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of CD200R protein (Cat: 11218-H08H) from the overexpression lysate was verified.
Expression Host
HEK293 Cells
Species
Human
Sequence Information
A DNA sequence encoding the human CD200R1 (AAI43394.1) extracellular domain (Met 1-Leu 266) was fused with a polyhistidine tag at the C-terminus.
Molecule Mass
The secreted recombinant human CD200R1 comprises 251 amino acids after removal of the signal peptide and has a predicted molecular mass of 28.2 kDa. As a result of glycosylation, rh CD200R1 migrates as an approximately 50-60 kDa band in SDS-PAGE under reducing conditions.

Human CD200R HEK293 Overexpression Lysate: Usage Guide

Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Lysis Buffer
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Recommend Usage
1.  Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube. 2.  Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
Sample Buffer
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Stability & Storage
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Application
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

Human CD200R HEK293 Overexpression Lysate: Alternative Names

Human CD200R Overexpression Lysate; Human HCRTR2 Overexpression Lysate; Human MOX2R Overexpression Lysate; Human OX2R Overexpression Lysate

CD200R Background Information

The cluster of differentiation (CD) system is commonly used as cell markers in immunophynotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 32 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. Cell surface glycoprotein CD2 receptor 1 (CD2R1) is an isoform of CD2 receptors which is expressed on cells of the myeloid lineage. CD2R1 is a receptor for the OX-2 membrane glycoprotein. The receptor-substrate interaction may serve as a myeloid downregulatory signal.
Full Name
CD200 receptor 1
References
  • Zola H, et al. (2007) CD molecules 2006-human cell differentiation molecules. J Immunol Methods. 318 (1-2): 1-5.
  • Ho IC, et al. (2009) GATA3 and the T-cell lineage: essential functions before and after T-helper-2-cell differentiation. Nat Rev Immunol. 9 (2): 125-35.
  • Matesanz-Isabel J, et al. (2011) New B-cell CD molecules. Immunology Letters.134 (2): 104-12.
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