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产品概述
产品信息
| 别名 | Vascular endothelial Growth Factor A; Vascular permeability factor; VEGF; VEGF-A; VPF |
| 物种 | Rat |
| 表达宿主 | Yeast |
| 序列信息 | Ala27-Arg190(Ala36Thr) |
| 检索号 | P16612-2 |
| 分子量 | 19.2 kDa |
| 表观分子量 | 18-23 kDa |
| 生物活性 | Immobilized Rat VEGF 164 at 2μg/ml (100 μl/well) can bind Mouse VEGFR2-Fc.The ED50 of Mouse VEGFR2-Fc is 22.17 ng/ml. |
产品特性
| 纯度 | >95% as determined by reducing SDS-PAGE. |
| 内毒素 | < 1.0 EU per µg as determined by LAL test. |
| 保存 | Lyophilized protein should be stored at -5~-20℃, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at -5~-20℃ for 3 months. |
| 运输 | Ambient temperature or ice pack. |
| 制剂 | Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4. |
| 复融 | Always centrifuge tubes before opening. Do not mix by vortex or pipetting.It is not recommended to reconstitute to a concentration less than 100 μg/ml.Dissolve the lyophilized protein in distilled water.Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
背景介绍
Vascular endothelial Growth Factor (VEGF/ VEGF-A ) is originally known as vascular permeability factor (VPF). It belongs to the PDGF family with a cysteine-knot structure comprised of eight conserved cysteine residues, and reckoned as a potent mediator in the process of angiogenesis and vasculogenesis in either fetus or adult. VEGF is particularly expressed in supraoptic , paraventricular nuclei and the choroid plexus of the pituitary, and abundant in the corpus luteum of the ovary and in kidney glomeruli. The rat VEGF Protein contains a putative 20 amino acids (aa) signal peptide, and alternative splicing of rat VEGF gene produces isoforms of 120, 144, 164 and 188 aa. Rat VEGF164 respectively displays 97% and 88% aa identity with that regions of mouse and human VEGF. VEGF can bind to the FLT1/ VEGFR1 and KDR/ VEGFR2 Receptors, heparan sulfate and heparin, and play important roles in inducing endothelial cell proliferation, promoting cell migration, inhibiting apoptosis and inducing permeabilization of blood vessels.
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