Name : Human TNFR2/CD120b/TNFRSF1B Protein

Product Source :
Recombinant Human TNFR2/CD120b/TNFRSF1B Protein is expressed from HEK293 with His tag at the C-Terminus. It contains Leu23-Asp257.[Accession | P20333-1]

Molecular Weight :
The protein has a predicted MW of 26.2 kDa. Due to glycosylation, the protein migrates to 48-60 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> 95% as determined by HPLC

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 TNFR2 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. SEC-HPLC The purity of Human TNFR2 is greater than 95% as determined by SEC-HPLC. ELISA Data Immobilized Human TNFR2, His Tag at 5μg/ml (100μl/Well). Dose response curve for Biotinylated Human TNF alpha, His Tag with the EC50 of 14.6ng/ml determined by ELISA (QC Test). ELISA Data Immobilized Human TNFR2, His Tag at 0.5μg/ml (100μl/Well). Dose response curve for Anti-TNFR2 Antibody, hFc Tag with the EC50 of 6.4ng/ml determined by ELISA.

Background :
Tumor Necrosis Factor Receptor II (TNF RII), also known as TNFRSF1B, p75/p80, and CD120b, is a type I transmembrane protein that belongs to the TNF receptor superfamily. It has a molecular weight of approximately 75 kDa.Receptor with high affinity for TNFSF2/TNF-alpha and approximately 5-fold lower affinity for homotrimeric TNFSF1/lymphotoxin-alpha. The TRAF1/TRAF2 complex recruits the apoptotic suppressors BIRC2 and BIRC3 to TNFRSF1B/TNFR2. This receptor mediates most of the metabolic effects of TNF-alpha. Isoform 2 blocks TNF-alpha-induced apoptosis, which suggests that it regulates TNF-alpha function by antagonizing its biological activity.

Synonyms :
CD120b; Etanercept; p75TBPII; p75TNFR; TNF RII; TNF-R2; TNF-R75; TNFR80; TNFRSF1B; TNFR2; TBPII; TNFBR; TNFR1B

References & Citations :
(1)Vanamee, éva S, Faustman D L. TNFR2: A Novel Target for Cancer Immunotherapy[J]. Trends in Molecular Medicine, 2017:S1471491417301697.

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