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Biotinylated Human VEGF121 Protein, Avitag™,His Tag

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分子别名(Synonym)

RP1-261G23.1,MGC70609,MVCD1,VEGFA,VPF

表达区间及表达系统(Source)

MABSol® Biotinylated Human VEGF121, Avitag,His Tag (VE1-H82E7) is expressed from human HEK293 cells. It contains AA Ala 27 - Arg 147 (Accession # P15692-9).

Request for sequence

蛋白结构(Molecular Characterization)

Online(Ala 27 - Arg 147) P15692-9

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

The protein has a calculated MW of 16.7 kDa. As a result of glycosylation, the protein migrates as 18 kDa and 22 kDa under reducing (R) condition, and 35-40 kDa under non-reducing (NR) condition (SDS-PAGE).

标记(Biotinylation)

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(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.

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 VEGF121, Avitag,His Tag (Cat. No. VE1-H82E7) SDS-PAGE gel

Biotinylated Human VEGF121, Avitag,His Tag on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. 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 VEGFR1/R2-Fc at 1 μg/mL (100 μL/well) can bind Biotinylated Human VEGF121, Avitag,His Tag (Cat. No. VE1-H82E7) with a linear range of 0.1-2 ng/mL (QC tested).

Protocol

文献引用(Citations)

背景(Background)

Vascular endothelial growth factor (VEGF) is also known as vascular permeability factor (VPF) and VEGF-A, and is a member of the platelet-derived growth factor (PDGF)/vascular endothelial growth factor (VEGF) family and encodes a protein that is often found as a disulfide linked homodimer. This protein is a glycosylated mitogen that specifically acts on endothelial cells and has various effects, including mediating increased vascular permeability, inducing angiogenesis, vasculogenesis and endothelial cell growth, promoting cell migration, and inhibiting apoptosis. Alternatively spliced transcript variants, encoding either freely secreted or cell-associated isoforms, have been characterized. Alternatively spliced isoforms of 121,145,165,183,189 and 206 amino acids in length are expressed in humans. VEGF165 appears to be the most abundant and potent isoform, followed by VEGF121 and VEGF189. VEGF121 is the only form that lacks a basic heparinbinding region and is freely diffusible. Mouse embryos expressing only the corresponding isoform (VEGF120) do not survive to term, and show defects in skeletogenesis. Human VEGF121 shares 87% aa sequence identity with corresponding regions of mouse and rat, 93% with feline, equine and bovine, and 91%, 95% and 96% with ovine, canine and porcine VEGF, respectively. VEGF121 induces the proliferation of lymphatic endothelial cells. The lymphangiogenesis may be promoted by upregulation of VEGF121, which may in turn act in part via induction of VEGF-C.

 

前沿进展

 
 
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VEGF121靶点信息
英文全称:Vascular endothelial growth factor A
中文全称:血管内皮生长因子A
种类:Homo sapiens
上市药物数量:25详情
临床药物数量:68详情
最高研发阶段:批准上市
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