Recombinant Human VEGF121 Protein is expressed from HEK293 without tag.It contains Ala27-Arg147.
纯度
> 95 % as determined by Tris-Bis PAGE,> 90 % as determined by HPLC
过滤
0.22 μm filtered
内毒素水平
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Human VEGF121, No Tag at 0.5μg/ml (100μl/well) on the plate. Dose response curve for Human VEGF R1, His Tag with the EC50 of 21.7ng/ml determined by ELISA. See testing image for detail.
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
缓冲液
Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
储存条件
-20 °C,-80 °C
储存方法
-20 to -80°C for 12 months as supplied from date of receipt.,-80°C for 3-6 months after reconstitution.,2-8°C for 2-7 days after reconstitution.,Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Vascular endothelial growth factor (VEGF or VEGF-A), also known as vascular permeability factor (VPF), is a potent mediator of both angiogenesis and vasculogenesis in the fetus and adult. VEGF165 appears to be the most abundant and potent isoform, followed by VEGF121 and VEGF189.
分子量
14.07 kDa. Due to glycosylation, the protein migrates to 15-25 kDa based on Tris-Bis PAGE result.