货号价格

CDL-HM240-100μg / 询价

CDL-HM240-500μg / 询价

CDL-HM240-500μgx2 / 询价

Human CD40 Ligand/TNFSF5 Trimer Protein

产品信息(Product Info)
表达区间及表达系统(Source)

Recombinant Human CD40 Ligand/TNFSF5 Trimer Protein is expressed from HEK293 with monomeric hFc tag at the N-Terminus.
It contains Met113-Leu261 [Accession | P29965].

分子量大小(Molecular Weight)

The protein has a predicted MW of 74.9 kDa. Due to glycosylation, the protein migrates to 75-80 kDa based on Bis-Tris PAGE result.

纯度(Purity)

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

内毒素(Endotoxin)

Less than 1EU per μg by the LAL method.

制剂(Formulation)

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

重构方法(Reconstitution)

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

存储(Storage)

-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.

产品数据(Assay Data)
Bis-Tris PAGE

Human CD40 Ligand (Trimer) on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC

The purity of Human CD40 Ligand (Trimer) is greater than 95% as determined by SEC-HPLC.

ELISA Data

Immobilized Human CD40, His Tag at 2μg/ml (100μl/Well) on the plate. Dose response curve for Human CD40 Ligand (Trimer), hFc Tag with the EC50 of 29.8ng/ml determined by ELISA (QC Test).

Blocking Data

Serial dilutions of Anti-CD40 Antibody were added into Biotinylated Human CD40, His Tag : Human CD40 Ligand (Trimer) , hFc Tag binding reactioins. The half maximal inhibitiory concentration (IC50) is 2.0ug/ml.

背景(Background)

CD40 ligand or CD40L, also called CD154,  is a protein that is primarily expressed on activated T cells and is a member of the TNF superfamily of molecules. It binds to CD40 (protein) on antigen-presenting cells (APC), which leads to many effects depending on the target cell type. In total CD40L has three binding partners: CD40, α5β1 integrin and αIIbβ3. CD154 acts as a costimulatory molecule and is particularly important on a subset of T cells called T follicular helper cells. .

分子别名(Synonyms)

CD40L; CD40LG; CD154; TNFSF5; TNFSF5IMD3; CD40LIGM; gp39; HIGM1; T-BAM; TRAP; IGM; IMD3; CD40 Ligand

文献(References)

(1)Bjorck P , Filbert E , Zhang Y , et al. The CD40 agonistic monoclonal antibody APX005M has potent immune stimulatory capabilities[J]. Journal for Immunotherapy of Cancer, 2015, 3(S2):P198.

(2)Pound, J. D. Minimal cross-linking and epitope requirements for CD40-dependent suppression of apoptosis contrast with those for promotion of the cell cycle and homotypic adhesions in human B cells[J]. International Immunology, 1999, 11(1):11-20

Note: HPLC results always come from liquid protein, due to absorption peak interference of trehalose in lyophilized powder.