Recombinant Human CD244 Protein, C-hFc& AVI-tagged, Biotinylated
Product Description
Cat
IMP-1393
Official Symbol
CD244
Product Overview
Recombinant human CD244 (NP_057466.1) (Met1-Arg221) was expressed with a c-terminal AVI tagged Fc region of human IgG1 at the C-terminus (Fc-AVI). The expressed protein was biotinylated in vivo by the Biotin-Protein ligase (BirA enzyme) which is co-expressed.
Description
The CD244 antigen, also known as 2B4, is a cell surface glycoprotein implicated in the regulation of natural killer and T lymphocyte function. 2B4 is a member of the signaling lymphocyte activation molecule (SLAM)-related receptor family and is important for stimulating NK cell cytotoxicity and cytokine production, which is expressed on all NK cells, a subpopulation of T cells, monocytes and basophils. The 2B4 antigen identified on NK cells and T cells is capable of transmitting stimulatory signals and non-MHC-restricted killing. Reported as an activating receptor, human 2B4 can effectively activate and enhance NK cell–mediated cytotoxicity, induce secretion of IFN-γ and matrix metalloproteinases (MMPs), as well as NK cell invasiveness. As a cell surface glycoprotein of the Ig-superfamily structurally related to CD2-like molecules such as CD2, CD48, CD58, CD84, Ly-9, and SLAM, 2B4 (CD244) is expressed on all human NK cells, a subpopulation of T cells, basophils and monocytes. 2B4 activates NK cell mediated cytotoxicity, induces secretion of IFN-gamma and matrix metalloproteinases, and NK cell invasiveness.
Expression System
HEK293
Species
Human
Tag
C-hFc& AVI
Predicted N Terminal
Cys 22
Form
Lyophilized from sterile PBS, pH 7.4, 5 % trehalose, 5% mannitol and 0.01% Tween80.
Molecular Mass
The recombinant human CD244 consists of 453 amino acids and predicts a molecular mass of 50.80 kDa. It migrates as an approximately 65.58 kDa band in SDS-PAGE under reducing conditions.
Protein length
Met1-Arg221
Endotoxin
< 1.0 EU/μg protein as determined by the LAL method.
Purity
> 95 % as determined by SDS-PAGE
Storage
Samples are stable for up to twelve months from date of receipt at -20 to -80 centigrade.
Store it under sterile conditions at -20 to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Bioactivity-ELISA 1
Bioactivity-ELISA

Measured by its binding ability in a functional ELISA. Immobilized Human CD48 hFc at 2 μg/mL (100 μL/well) can bind Human 2B4/CD244 (hFc&AVI Tag), Biotinylated, the EC50 of Human 2B4/CD244 (hFc&AVI Tag), Biotinylated is 10-70 ng/mL.

Data Sheet MSDS
For Research Use Only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative BioMart.

Online Inquiry
Contact Info