Name : Human HVEM/TNFRSF14 Protein

Product Source :
Recombinant Human HVEM/TNFRSF14 Protein is expressed from HEK293 with hFc tag at the C-Terminus. It contains Leu39-Val202.[Accession | Q92956-1]

Molecular Weight :
The protein has a predicted MW of 44.3 kDa. Due to glycosylation, the protein migrates to 60-70 kDa based on Tris-Bis PAGE result.

Endotoxin Level :
Less than 1EU per μg by the LAL method.

Purity :
> 95% as determined by Tris-Bis PAGE

Formulation :
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

Reconstitution :
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.

Storage and Stability :
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3-6 months after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

Product Concentration :
Tris-Bis PAGE Human HVEM on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. ELISA Data Immobilized Human BTLA, His Tag at 1μg/ml (100μl/Well). Dose response curve for Human HVEM, hFc Tag with the EC50 of 42.5ng/ml determined by ELISA (QC Test). ELISA Data Immobilized Human LIGHT, His Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Human HVEM, hFc Tag with the EC50 of 39.9ng/ml determined by ELISA. SPR Data Human HVEM, hFc Tag captured on CM5 Chip via Protein A can bind Human CD160, His Tag with an affinity constant of 1.44 μM as determined in SPR assay (Biacore T200).

Background :
Herpesvirus entry mediator (HVEM), also known as tumor necrosis factor receptor superfamily member 14 (TNFRSF14), is a human cell surface receptor of the TNF-receptor superfamily. Two TNF superfamily ligands lymphotoxin α (TNF-β) and LIGHT (TNFSF14) are identified as cellular ligands for HVEM and initiate the positive signaling.

Synonyms :
CD270; CD40-like protein; HVEM; LIGHTR; ATAR; TNFRSF14; TR2

References & Citations :
(1)Granger S W, Rickert S. LIGHT-HVEM signaling and the regulation of T cell-mediated immunity[J]. Cytokine Growth Factor Rev, 2003, 14(3):289-296.

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