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Rhesus macaque VEGF R2 / KDR Protein  pdf  pdf  pdf


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VE2-C52H3-100ug
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Synonym

KDR,CD309,FLK1,VEGFR,VEGFR2

Source

Rhesus macaque VEGF R2, His Tag (VE2-C52H3) is expressed from human 293 cells (HEK293). It contains AA Ala 20 - Glu 764 (Accession # F7E313).

Predicted N-terminus: Ala 20

Molecular Characterization

VEGF R2(Ala 20 - Glu 764)F7E313
Poly-his

This protein carries a polyhistidine tag at the C-terminus.

The protein has a calculated MW of 85.2 kDa. The protein migrates as 120-130 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Endotoxin

Less than 1.0 EU per μg by the LAL method.

Purity

>97% as determined by SDS-PAGE.

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.

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.

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 is 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.
 

SDS-PAGE

Rhesus macaque VEGF R2, His Tag (Cat. No. VE2-C52H3) SDS-PAGE gel

Rhesus macaque VEGF R2, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 97%.

Bioactivity

Rhesus macaque VEGF R2, His Tag (Cat. No. VE2-C52H3) ELISA bioactivity

Immobilized ActiveMax® Human VEGF165 (Cat. No. VE5-H4210) at 2 μg/mL (100 μL/well) can bind Rhesus macaque VEGF R2, His Tag (Cat. No. VE2-C52H3) with a linear range of 4-60 ng/mL (QC tested).

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Background

Kinase insert domain receptor (KDR) is also known as CD309, FLK1, VEGFR, VEGFR2, and is one of the subtypes of VEGFR. VEGF receptors are receptors for vascular endothelial growth factor (VEGF). There are three main subtypes of VEGFR, numbered 1, 2 and 3. The VEGF receptors have an extracellular portion consisting of 7 immunoglobulin-like domains, a single transmembrane spanning region and an intracellular portion containing a split tyrosine-kinase domain. VEGF-A binds to VEGFR-1 (Flt-1) and VEGFR-2 (KDR/Flk-1). VEGFR-2 appears to mediate almost all of the known cellular responses to VEGF.The function of VEGFR-1 is less well defined, although it is thought to modulate VEGFR-2 signaling. Another function of VEGFR-1 may be to act as a dummy/decoy receptor, sequestering VEGF from VEGFR-2 binding (this appears to be particularly important during vasculogenesis in the embryo). In addition, VEGFR2 is able to interact with HIV-1 extracellular Tat protein upon VEGF activation, and seems to enhance angiogenesis in Kaposi's sarcoma lesions.

References

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