ActiveMax® Recombinant Human VEGF110 (HPLC-verified), Tag Free, 20µg

Background
Vascular endothelial growth factor (VEGF), 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 110,121,145,165,183,189 and 206 amino acids in length are expressed in humans.

Source
ActiveMax® Recombinant Human VEGF110 Protein, Tag Free (HPLC-verified) (VE0-H5212) is expressed from human 293 cells (HEK293). It contains AA Ala 27 - Arg 136 (Accession # NP_001165097).
Predicted N-terminus: Ala 27

Molecular Characterization
This protein carries no "tag". The protein has a calculated MW of 12.7 kDa. The protein migrates as 18-20 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation. This product does not contain a heparin binding domain, and therefore doesn't bind with heparin.

Endotoxin
Less than 1.0 EU per μg by the LAL method.

Purity
>95% as determined by SDS-PAGE.
>95% as determined by SEC-HPLC.

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
See Certificate of Analysis for reconstitution instructions and specific concentrations.

Storage
Avoid repeated freeze-thaw cycles.
No activity loss was observed after storage at:
In lyophilized state for 1 year (4°C); After reconstitution under sterile conditions for 3 months (-70°C).
 
Bioactivity
Please refer to product data sheet.

References

(1) Takahashi, H. and Shibuya, M., 2005, Clin Sci (Lond) 109, 227-41.
(2) Neufeld, G. et al., 1999, FASEB J 13, 9-22.
(3) Robinson, C.J. and Stringer, S.E., 2001, J Cell Sci 114, 853-65.