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Biotinylated Human TL1A / TNFSF15 Protein, His,Avitag™

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分子别名(Synonym)

TL1A, VEGI, TNFSF15

表达区间及表达系统(Source)

Biotinylated Human TL1A Protein, His,Avitag (TLA-H52Q1) is expressed from human 293 cells (HEK293). It contains AA Leu 72- Leu 251 (Accession # O95150-1).

Predicted N-terminus: His

Request for sequence

蛋白结构(Molecular Characterization)

TL1A Structure

This protein carries a polyhistidine tag at the N-terminus, followed by an Avi tag (Avitag™).

The protein has a calculated MW of 24.1 kDa. The protein migrates as 28-32 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

标记(Labeling)

Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

蛋白标记度(Protein Ratio)

Passed as determined by the HABA assay / binding ELISA.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>90% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

TL1A SDS-PAGE

Biotinylated Human TL1A Protein, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).

 

活性(Bioactivity)-ELISA

TL1A ELISA

Immobilized Human DcR3, Fc Tag (Cat. No. TNB-H5255) at 5 μg/mL (100 μL/well) can bind Biotinylated Human TL1A Protein, His,Avitag (Cat. No. TLA-H52Q1) with a linear range of 0.2-6 ng/mL (QC tested).

Protocol

TL1A ELISA

Immobilized Biotinylated Human TL1A Protein, His,Avitag (Cat. No. TLA-H52Q1) at 1 μg/mL (100 μL/well) on streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate can bind Human DcR3, Fc Tag (Cat. No. TNB-H5255) with a linear range of 0.1-3 ng/mL (Routinely tested).

Protocol

TL1A ELISA

Immobilized Human DR3, Fc Tag (Cat. No. DR3-H5253) at 0.6 μg/mL (100μL/well) can bind pre-mixed increasing concentrations of Anti-TL1A Neutralizing Antibody, Human IgG1 and 1μg/mL (50 μL/well) Biotinylated Human TL1A, His Avitag (Cat. No. TLA-H52Q1) with a half maximal inhibitory concentration (IC50) of 1.95 μg/mL (Routinely tested).

Protocol

 

活性(Bioactivity)-SPR

TL1A SPR

Human DR3 Protein, His Tag (Cat. No. TN5-H52H3) immobilized on CM5 Chip can bind Biotinylated Human TL1A Protein, His,Avitag (Cat. No. TLA-H52Q1) with an affinity constant of 97.9 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).

Protocol

 

背景(Background)

TNF-like cytokine 1A (TL1A) and its receptors, death receptor 3 (DR3) and decoy receptor 3 (DcR3) are members of the TNF and TNF receptor superfamilies of proteins, respectively. Binding of APC-derived TL1A to lymphocytic DR3 provides co-stimulatory signals for activated lymphocytes. DR3 signaling affects not only the proliferative activity of and cytokine production by effector lymphocytes, but also critically influences the development and suppressive function of regulatory T-cells. Whereas, DcR3 restricts the function of the TL1A/DR3 complex: attenuating T-cell activation and downregulating the secretion of pro-inflammatory cytokines. Together with DR3 and DcR3, TL1A constitutes a cytokine system that actively interferes with the regulation of immune responses.

 

前沿进展

 
 
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TL1A靶点信息
英文全称:Tumor necrosis factor superfamily member 15
中文全称:肿瘤坏死因子超家族成员15
种类:Homo sapiens
上市药物数量:0详情
临床药物数量:4详情
最高研发阶段:临床三期
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