PROVETOP

Biotinylated Canine VEGF164 Protein

Catalog No: VEGF164-DB001

Species
Canine
Expression System
HEK293
Tag
His, Avi
Activity
Activity verified

Product overview

Recombinant Biotinylated Canine VEGF164 Protein is expressed in HEK293 cells with a His tag and Avi tag at the N-terminus. It contains amino acid residues Ala27-Arg190 (accession: NP_001103972.1).

Product Details

Molecular Aliases
VEGF; VEGFA; VEGF-A; VPF
Protein Length
Ala27-Arg190
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 22.05 kDa. Due to glycosylation, the protein migrates to 27-33 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 90% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Lyophilized from 0.22 μm filtered solution in PBS, 200mM L-arginine (pH 8.0). Normally 8% trehalose is added as protectant before lyophilization.
State
Lyophilized
Storage Conditions
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Reconstitution Advice
Dissolve the lyophilized protein in distilled water. Please refer to the Certificate of Analysis for detailed instructions.

Data Display

Bis-Tris PAGE
VEGF164-DB001 Bis-Tris-PAGE-white result

Biotinylated Canine VEGF164 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
VEGF164-DB001 SEC-HPLC-white result

The purity of Biotinylated Canine VEGF164 is greater than 90% as determined by SEC-HPLC.

ELISA
VEGF164-DB001 ELISA result

Immobilized Biotinylated Canine VEGF164, His Avi tag at 0.5μg/ml (100μl/well) on the streptavidin precoated plate (5μg/ml). Dose response curve for Bevacizumab, hFc Tag with the EC50 of 6.0ng/ml determined by ELISA. (QC Test)

Background

Vascular endothelial growth factor (VEGF) is an essential regulator of vascularization. It is expressed as several splice variants; the major forms contain 120 amino acids, 164 amino acids, and 188 amino acids. VEGF-A164 induces an extremely heterogeneous response that includes vascular hyperpermeability, extravascular fibrin deposition, edema, angiogenesis (mother vessels, GB, daughter capillaries), arteriovenous malformations, arteriogenesis, fibrogenesis, and lymphangiogenesis.

References

  1. Grunstein J, Masbad JJ, Hickey R, Giordano F, Johnson RS. Isoforms of vascular endothelial growth factor act in a coordinate fashion To recruit and expand tumor vasculature. Mol Cell Biol. 2000 Oct;20(19):7282-91. doi: 10.1128/MCB.20.19.7282-7291.2000. PMID: 10982845; PMCID: PMC86282.
  2. Nagy JA, Dvorak AM, Dvorak HF. VEGF-A(164/165) and PlGF: roles in angiogenesis and arteriogenesis. Trends Cardiovasc Med. 2003 Jul;13(5):169-75. doi: 10.1016/s1050-1738(03)00056-2. PMID: 12837578.

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