Human 4-1BB/TNFRSF9 Protein

产品信息(Product Info)
表达区间及表达系统(Source)

Recombinant Human 4-1BB/TNFRSF9 Protein is expressed from Expi293 with His tag at the C-terminal. It contains Leu24-Gln186.[Accession | Q07011]

分子量大小(Molecular Weight)

The protein has a predicted MW of 18.1 kDa. Due to glycosylation, the protein migrates to 35-40 kDa based on Tris-Bis PAGE result.

内毒素(Endotoxin)

Less than 1EU per μg by the LAL method.

纯度(Purity)

> 95% as determined by Tris-Bis PAGE
> 95% as determined by HPLC

制剂(Formulation)

Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization.

重构方法(Reconstitution)

Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/ml is recommended (usually we use 1mg/ml solution for lyophilization). Dissolve the lyophilized protein in distilled water.

存储(Storage)

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

产品数据(Assay Data)
Tris-Bis PAGE

Human 4-1BB on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC

The purity of Human 4-1BB is greater than 95% as determined by SEC-HPLC.

ELISA Data

Immobilized Human 4-1BB, His Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Human 4-1BB Ligand Trimer, hFc Tag with the EC50 of 5.7ng/ml determined by ELISA.

背景(Background)

4-1BB, is also known as CD137, is a type 2 transmembrane glycoprotein receptor belonging to the TNF superfamily.CD137 can be expressed by activated T cells, but to a larger extent on CD8 than on CD4 T cells. In addition, CD137 expression is found on dendritic cells, B cells, follicular dendritic cells, natural killer cells, granulocytes and cells of blood vessel walls at sites of inflammation.

分子别名(Synonyms)

CD137; TNFRSF9; 4-1BB ligand receptor; 41BB; 4-1BB; CDw137; FLJ43501; ILA; T cell antigen ILA

文献(References)

(1)Vinay D S , Kwon B S. 4-1BB (CD137), an inducible costimulatory receptor, as a specific target for cancer therapy[J]. BMB Reports, 2014, 47(3):122-129.

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