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 >  Protein>B7-H3 >B73-H82E6

Biotinylated Human B7-H3 / CD276 Protein, Avitag™,His Tag

分子别名(Synonym)

B7-H3,CD276,B7 homolog 3

表达区间及表达系统(Source)

Biotinylated Human B7-H3 Protein, Avitag,His Tag (B73-H82E6) is expressed from human 293 cells (HEK293). It contains AA Leu 29 - Pro 245 (Accession # Q5ZPR3-2).

Predicted N-terminus: Leu 29

Request for sequence

蛋白结构(Molecular Characterization)

B7-H3 Structure

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

The protein has a calculated MW of 26.5 kDa. The protein migrates as 35-45 kDa 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)

>95% 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)

B7-H3 SDS-PAGE

Biotinylated Human B7-H3 Protein, Avitag,His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.

 

活性(Bioactivity)-ELISA

B7-H3 ELISA

Immobilized Monoclonal Anti-Human B7-H3 / B7-H3 (4Ig) Antibody, Human IgG1 at 2 μg/mL (100 μL/well) can bind Biotinylated Human B7-H3 Protein, Avitag,His Tag (Cat. No. B73-H82E6) with a linear range of 5-39 ng/mL (QC tested).

Protocol

B7-H3 ELISA

Immobilized Biotinylated Human B7-H3 Protein, Avitag,His Tag (Cat. No. B73-H82E6) at 1 μg/mL (100 μL/well) on streptavidin precoated (0.5 μg/well) plate, can bind Monoclonal Anti-Human B7-H3 / B7-H3 (4Ig) Antibody, Human IgG1 with a linear range of 0.3-10 ng/mL (Routinely tested).

Protocol

 

背景(Background)

B7 homolog 3 (B7-H3), a member of the immunoglobulin superfamily, is also known CD276, which contains two Ig-like C2-type (immunoglobulin-like) domains and two Ig-like V-type (immunoglobulin-like) domains. B7-H3 may participate in the regulation of T-cell-mediated immune response. B7-H3 also plays a protective role in tumor cells by inhibiting natural-killer mediated cell lysis as well as a role of marker for detection of neuroblastoma cells. Furthermore, B7-H3 is involved in the development of acute and chronic transplant rejection and in the regulation of lymphocytic activity at mucosal surfaces. It could also play a key role in providing the placenta and fetus with a suitable immunological environment throughout pregnancy.

 

前沿进展

 
 
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B7-H3靶点信息
英文全称:CD276 antigen
中文全称:CD276抗原
种类:Homo sapiens
上市药物数量:0详情
临床药物数量:39详情
最高研发阶段:申请上市
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