Product Name
Vascular Endothelial Growth Factor (VEGF), Recombinant Protein
Popular Item
Full Product Name
Recombinant Human Vascular Endothelial Growth Factor
Product Synonym Names
VEGF Human; Vascular Endothelial Growth Factor Human Recombinant; Vascular endothelial growth factor A; VEGF-A; Vascular permeability factor; VPF; VEGF; MGC70609
Product Gene Name
VEGF recombinant protein
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Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Sequence
APMAEGGGQN HHEVVKFMDV YQRSYCHPIE TLVDIFQEYP DEIEYIFKPS CVPLMRCGGC CNDEGLECVP TEESNITMQI MRIKPHQGQH IGEMSFLQHN KCECRPKKDR ARQENPCGPC SERRKHLFVQ DPQTCKCSCK NTDSRCKARQ LELNERTCRC DKPRR
3D Structure
ModBase 3D Structure for P15692
Purity/Purification
Greater than 95.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Form/Format
The VEGF protein was lyophilized from a concentrated (1mg/ml) solution with no additives.
Sterile Filtered White lyophilized (freeze-dried) powder.
Solubility
It is recommended to reconstitute the lyophilized VEGF in sterile 18M-cm H2O not less than 100 ug/ml, which can then be further diluted to other aqueous solutions.
Protein Content
VEGF protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.2875 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a calibrated solution of VEGF as a Reference Standard.
Biological Activity
VEGF activity was determined by the dose-dependent stimulation of the proliferation of human umbilical vein endothelial cells (HUVEC) using a concentration range of 1-8ng/ml, corresponding to a Specific Activity of 125,000-1,000,000IU/mg.
Preparation and Storage
Lyophilized VEGF although stable at room temperature for 3 weeks, should be stored desiccated below -18 degree C. Upon reconstitution VEGF should be stored at 4 degree C between 2-7 days and for future use below -18 degree C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Other Notes
Small volumes of VEGF recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Related Product Information for
VEGF recombinant protein
Description: Vascular Endothelial Growth Factor Human Recombinant produced in E Coli is a double, non-glycosylated, polypeptide chain containing 165 amino acids and having a molecular mass of 38231 Dalton.The VEGF is purified by proprietary chromatographic techniques.
Introduction: Vascular endothelial growth factor (VEGF) is an important signaling protein involved in both vasculogenesis and angiogenesis. As its name implies, VEGF activity has been mostly studied on cells of the vascular endothelium, although it does have effects on a number of other cell types (e.g. stimulation monocyte/macrophage migration, neurons, cancer cells, kidney epithelial cells). VEGF mediates increased vascular permeability, induces angiogenesis, vasculogenesis and endothelial cell growth, promotes cell migration, and inhibits apoptosis. In vitro, VEGF has been shown to stimulate endothelial cell mitogenesis and cell migration. VEGF is also a vasodilator and increases microvascular permeability and was originally referred to as vascular permeability factor.Elevated levels of the VEGF protein are linked to POEMS syndrome, also known as Crow-Fukase syndrome. Mutations in the VEGF gene have been associated with proliferative and nonproliferative diabetic retinopathy.
Product Categories/Family for VEGF recombinant protein
CYTOKINES AND GROWTH FACTORS; Growth Factors; VEGF
NCBI/Uniprot data below describe general gene information for VEGF. It may not necessarily be applicable to this product.
NCBI Accession #
NP_001020537.2
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NCBI GenBank Nucleotide #
NM_001025366.2
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UniProt Primary Accession #
P15692
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UniProt Secondary Accession #
O60720; O75875; Q074Z4; Q16889; B5BU86; H0Y2S8; H0Y407; H0Y414; H0Y462; H0Y8N2; H3BLW7[Other Products]
UniProt Related Accession #
P15692[Other Products]
Molecular Weight
34,406 Da
NCBI Official Full Name
vascular endothelial growth factor A isoform a
NCBI Official Synonym Full Names
vascular endothelial growth factor A
NCBI Official Symbol
VEGFA [Similar Products]
NCBI Official Synonym Symbols
VPF; VEGF; MVCD1
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NCBI Protein Information
vascular endothelial growth factor A; vascular permeability factor
UniProt Protein Name
Vascular endothelial growth factor A
UniProt Synonym Protein Names
Vascular permeability factor; VPF
Protein Family
Vascular endothelial growth factor
UniProt Gene Name
VEGFA [Similar Products]
UniProt Synonym Gene Names
VEGF; VEGF-A; VPF [Similar Products]
UniProt Entry Name
VEGFA_HUMAN
NCBI Summary for VEGF
This gene is a member of the PDGF/VEGF growth factor 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. Elevated levels of this protein is linked to POEMS syndrome, also known as Crow-Fukase syndrome. Mutations in this gene have been associated with proliferative and nonproliferative diabetic retinopathy. Alternatively spliced transcript variants, encoding either freely secreted or cell-associated isoforms, have been characterized. There is also evidence for the use of non-AUG (CUG) translation initiation sites upstream of, and in-frame with the first AUG, leading to additional isoforms. [provided by RefSeq, Jul 2008]
UniProt Comments for VEGF
Growth factor active in angiogenesis, vasculogenesis and endothelial cell growth. Induces endothelial cell proliferation, promotes cell migration, inhibits apoptosis and induces permeabilization of blood vessels. Binds to the FLT1/VEGFR1 and KDR/VEGFR2 receptors, heparan sulfate and heparin. NRP1/Neuropilin-1 binds isoforms VEGF-165 and VEGF-145. Isoform VEGF165B binds to KDR but does not activate downstream signaling pathways, does not activate angiogenesis and inhibits tumor growth.
Research Articles on VEGF
1. High VEGF-A expression is associated with drug resistance in colorectal carcinoma.
Precautions
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Disclaimer
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