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Biotinylated Human TNF-alpha Protein, epitope tag free, ultra sensitivity (primary amine labeling) (active trimer) (MALS verified)

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利用生物素-链霉亲和素系统的高特异性和高灵敏度的结合特性,可将生物素化蛋白与链霉亲和素相关产品联合应用于各类实验,与非生物素体系相比,检测速度更快、结合能力更强、非特异背景更低。

分子别名(Synonym)

DIF,TNF-alpha,TNFA,TNFSF2,cachexin,cachectin,TNFα

表达区间及表达系统(Source)

MABSol® Biotinylated Human TNF-alpha, epitope tag free, primary amine labeling (active trimer) (MALS verified) (TNA-H8211) is expressed from human HEK293 cells. It contains AA Val 77 - Leu 233 (Accession # NP_000585.2). It is the biotinylated form of ActiveMax® Human TNF-alpha, Tag Free, low endotoxin (active trimer) (MALS verified) (TNA-H4211).

Predicted N-terminus: Val 77

Request for sequence

蛋白结构(Molecular Characterization)

Online(Val 77 - Leu 233) NP_000585.2

The product does NOT contain any epitope tags. The protein has a calculated MW of 17.4 kDa. The protein migrates as 18 kDa on a SDS-PAGE gel under reducing (R) condition.

标记(Biotinylation)

The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with biotins using standard chemical labeling method. A standard biotin reagent (13.5 angstroms) is used in this product.

蛋白标记度(Biotin: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)

>95% as determined by SDS-PAGE.

>95% as determined by SEC-MALS.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

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)

Biotinylated Human TNF-alpha, epitope tag free, primary amine labeling (Cat. No. TNA-H8211) SDS-PAGE gel

Biotinylated Human TNF-alpha, epitope tag free, primary amine labeling on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

SEC-MALS

Biotinylated Human TNF-alpha, epitope tag free, primary amine labeling (Cat. No. TNA-H8211) MALS images

The purity of Biotinylated Human TNF-alpha, epitope tag free, primary amine labeling (active trimer) (MALS verified) (Cat. No. TNA-H8211) is more than 95% in HP-SEC, and the molecular weight of this protein is around 48-65 kDa verified by SEC-MALS.

Report

 

活性(Bioactivity)-ELISA

Biotinylated Human ELISA

Immobilized Humira at 5 μg/mL (100 μL/well) can bind Biotinylated Human TNF-alpha, epitope tag free, primary amine labeling (active trimer) (MALS verified) (Cat. No. TNA-H8211) with a linear range of 0.4-6 ng/mL (QC tested).

Protocol

Biotinylated Human  ELISA

Immobilized Human TNFR1, Fc Tag (Cat. No. TN1-H5251) at 5 μg/mL (100 μL/well) can bind Biotinylated Human TNF-alpha, epitope tag free, primary amine labeling (active trimer) (MALS verified) (Cat. No. TNA-H8211) with a linear range of 0.4-6 ng/mL (Routinely tested).

Protocol

文献引用(Citations)

背景(Background)

Tumor necrosis factor alpha (TNFα) is a cytokine produced primarily by monocytes and macrophages. It is found in synovial cells and macrophages in the tissues.The primary role of TNFα is in the regulation of immune cells. TNFα is able to induce apoptotic cell death, to induce inflammation, and to inhibit tumorigenesis and viral replication. Dysregulation of TNFα production has been implicated in a variety of human diseases, including major depression, Alzheimer's disease and cancer. Recombinant TNFα is used as an immunostimulant under the INN tasonermin. TNFα can be produced ectopically in the setting of malignancy and parallels parathyroid hormone both in causing secondary hypercalcemia and in the cancers with which excessive production is associated.

 

前沿进展

 
 
TNF-alpha靶点信息
英文全称:Tumor necrosis factor α
中文全称:肿瘤坏死因子α
种类:Homo sapiens
上市药物数量:51详情
临床药物数量:65详情
最高研发阶段:批准上市
前沿进展

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