VEGFA
(Vascular Endothelial Growth Factor A (VEGFA))
蛋白类型
Recombinant
生物活性
Active
产品特性
Transcript Variant 7
宿主
人
资源
大肠杆菌(E. Coli)
应用范围
Functional Studies (Func), Antibody Production (AbP), Standard (STD), Protein Interaction (PI)
特异性
Optimal preservation of protein structure, post-translational modifications and functions.
产品特性
Recombinant human VEGF-A (transcript variant 7) protein expressed in E. coli.
Produced with end-sequenced ORF clone
Tested for bioactivity.
纯度
> 95 % as determined by SDS-PAGE and Coomassie blue staining
内毒素水平
Endotoxin level is <0.1 ng/μg of protein (<1EU/μg).
Biological Activity Comment
Determined by the dose-dependent stimulation of the proliferation of human umbilical vein endothelial cells (HUVEC) using a concentration range of 0.2-0.4 ng/ml.
VEGFA
宿主: 小鼠
宿主: Yeast (Pichia pastoris)
Recombinant
> 95 % as determined by SDS-PAGE
应用备注
Recombinant human proteins can be used for: Native antigens for optimized antibody production Positive controls in ELISA and other antibody assays Protein-protein interaction In vitro biochemical assays and cell-based functional assays
限制
仅限研究用
缓冲液
Lyophilized from a 0.2 μM filtered solution of 20 mM phosphate buffer,100 mM NaCl, pH 7.2
注意事项
Resuspend the protein in the desired concentration in proper buffer
储存条件
-80 °C
储存方法
Store at -80°C. Thaw on ice, aliquot to individual single-use tubes, and then re-freeze immediately. Only 2-3 freeze thaw cycles are recommended.
抗原
VEGFA
(Vascular Endothelial Growth Factor A (VEGFA))
This gene is a member of the PDGF/VEGF growth factor family. It encodes a heparin-binding protein, which exists as a disulfide-linked homodimer. This growth factor induces proliferation and migration of vascular endothelial cells, and is essential for both physiological and pathological angiogenesis. Disruption of this gene in mice resulted in abnormal embryonic blood vessel formation. This gene is upregulated in many known tumors and its expression is correlated with tumor stage and progression. Elevated levels of this protein are found in patients with POEMS syndrome, also known as Crow-Fukase syndrome. Allelic variants of this gene have been associated with microvascular complications of diabetes 1 (MVCD1) and atherosclerosis. Alternatively spliced transcript variants encoding different isoforms have been described. There is also evidence for alternative translation initiation from upstream non-AUG (CUG) codons resulting in additional isoforms. A recent study showed that a C-terminally extended isoform is produced by use of an alternative in-frame translation termination codon via a stop codon readthrough mechanism, and that this isoform is antiangiogenic. Expression of some isoforms derived from the AUG start codon is regulated by a small upstream open reading frame, which is located within an internal ribosome entry site.