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Human ICOS / CD278 Protein, Fc Tag

分子别名(Synonym)

ICOS,CD278,AILIM,Inducible T-cell costimulator

表达区间及表达系统(Source)

Human ICOS, Fc Tag (ICS-H5258) is expressed from human 293 cells (HEK293). It contains AA Glu 21 - Phe 141 (Accession # Q9Y6W8-1).

Predicted N-terminus: Glu 21

蛋白结构(Molecular Characterization)

Online(Glu 21 - Phe 141) Q9Y6W8-1

This protein carries a human IgG1 Fc tag at the C-terminus.

The protein has a calculated MW of 40.2 kDa. The protein migrates as 46-55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>95% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 25 mM Arginine, 150 mM NaCl, pH7.5. 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.

No activity loss was observed after storage at:

  1. 4-8°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

Human ICOS, Fc Tag (Cat. No. ICS-H5258) SDS-PAGE gel

Human ICOS, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

 

活性(Bioactivity)-ELISA

Biotinylated Human ELISA

Immobilized Human B7-H2, His Tag (Cat. No. B72-H5221) at 1 μg/mL (100 μL/well) can bind Human ICOS, Fc Tag (Cat. No. ICS-H5258) with a linear range of 0.4-6 ng/mL (QC tested).

点击申请Protocol

背景(Background)

Inducible T-cell costimulator (ICOS) is also known as Activation-inducible lymphocyte immunomediatory molecule (AILIM), CD278, which belongs to the CD28 family of immune costimulatory receptors consisting of CD28, CTLA-4 and PD-1. ICOS enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines, up-regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. CD278 / ICOS prevents the apoptosis of pre-activated T-cells and also plays a critical role in CD40-mediated class switching of immunoglobin isotypes.

 

前沿进展

货号/价格

ICS-H5258-100ug / ¥3500

ICS-H5258-1mg (500ug X 2) / ¥23100

产品定制
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ICOS靶点信息
英文全称:Inducible T-cell costimulator
中文全称:诱导T细胞共刺激分子
种类:Homo sapiens
上市药物数量:0详情
临床药物数量:2详情
最高研发阶段:临床二期
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