Human 2B4/CD244/SLAMF4 Protein (2B4-HM201)

Express System: HEK293
Product Tag: C-hFc
Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
Activity: Immobilized Human CD48, His Tag at 1ug/ml (100ul/well) on the plate. Dose response curve for Human 2B4, hFc Tag with the EC50 of 0.13ug/ml determined by ELISA. See testing image for detail.
Exact Sequence: Cys22-Arg221

Catalog: 2B4-HM201

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Product Description	Recombinant Human 2B4/CD244/SLAMF4 Protein is expressed from HEK293 with hFc tag at the C-Terminus.It contains Cys22-Arg221.
Product Background	2B4 (CD244) is expressed by memory-phenotype CD8() T cells and all natural killer (NK) cells. The ligand for 2B4, CD48, is expressed on hematopoietic cells. 2B4 is conserved in humans and mice, and a number of reports have linked 2B4 with activation of lymphocytes.Engagement of 2B4 on NK cell surfaces with specific antibodies or CD48 can trigger cell mediated cytotoxicity, interferon γ secretion, phosphoinositol turnover and NK cell invasiveness.
Product Category	Recombinant Protein

Target	2B4/CD244/SLAMF4
Synonyms	2B4; CD244 antigen; CD244; h2B4; NAIL; NKR2B4; Nmrk; SLAMF4
Gene/Protein ID	Q9BZW8-2
Species	Human
Exact Sequence	Cys22-Arg221
Molecular Weight	The protein has a predicted MW of 49 kDa. Due to glycosylation, the protein migrates to 68-75 kDa based on Tris-Bis PAGE result.
Activity	Immobilized Human CD48, His Tag at 1ug/ml (100ul/well) on the plate. Dose response curve for Human 2B4, hFc Tag with the EC50 of 0.13ug/ml determined by ELISA. See testing image for detail.
Product Tag	C-hFc
Express System	HEK293
Purity	> 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
Endotoxin	Less than 1EU per ug by the LAL method.

Form	Lyophilized
Shipping	Shipped at ambient temperature.
Formulation	Lyophilized from 0.22um filtered solution in 20mM Tris, 150mM NaCl (pH 8.0). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution	Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability And Storage	Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

	Immobilized Human CD48, His Tag at 1ug/ml (100ul/well) on the plate. Dose response curve for Human 2B4, hFc Tag with the EC50 of 0.13ug/ml determined by ELISA.
	The purity of Human 2B4 is greater than 95% as determined by SEC-HPLC.
	Human 2B4 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.