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AB264451

Recombinant human VEGFA protein (Active)

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Recombinant human VEGFA protein (Active) is a Human Fragment protein, in the 27 to 141 aa range, expressed in Escherichia coli, with >95%, < 1 EU/µg endotoxin level, suitable for SDS-PAGE, FuncS, Mass Spec.

View Alternative Names

VEGF, VEGFA, L-VEGF, Vascular permeability factor, VPF

2 Images
Flow Cytometry - Recombinant human VEGFA protein (Active) (AB264451)
  • Flow Cyt

Supplier Data

Flow Cytometry - Recombinant human VEGFA protein (Active) (AB264451)

Functional analysis of ab264451.

Human VEGFA (ab264451) stimulates cell proliferation of the HUVEC (human umbilical vein endothelial cells) cells. The ED50 range is ≤ 4 ng/ml.

SDS-PAGE - Recombinant human VEGFA protein (Active) (AB264451)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant human VEGFA protein (Active) (AB264451)

3ug by SDS-PAGE under reducing condition and visualized by coomassie blue stain

Key facts

Purity

>95% SDS-PAGE

Endotoxin level

< 1 EU/µg

Expression system

Escherichia coli

Tags

Tag free

Applications

SDS-PAGE, FuncS, Mass Spec

applications

Biologically active

Yes

Biological activity

Measured in a cell proliferation assay using HUVEC (human umbilical vein endothelial cells) cells. The ED50 range ≤ 4 ng/ml.

Accession

P15692

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 10% Glycerol (glycerin, glycerine), 0.32% Tris HCl

storage-buffer

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "FuncS": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "Mass Spec": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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Sequence info

[{"sequence":"MAPMAEGGGQNHHEVVKFMDVYQRSYCHPIETLVDIFQEYPDEIEYIFKPSCVPLMRCGGCCNDEGLECVPTEESNITMQIMRIKPHQGQHIGEMSFLQHNKCECRPKKDRARQEKCDKPRR","proteinLength":"Fragment","predictedMolecularWeight":"14.2 kDa","actualMolecularWeight":"14.2 kDa","aminoAcidEnd":141,"aminoAcidStart":27,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":"P15692","tags":[]}]
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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
True
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Vascular endothelial growth factor A (VEGFA) also known as VEGF or vascular permeability factor (VPF) is a protein that plays a central role in angiogenesis as well as in the growth of blood vessels. The molecular weight of VEGFA varies depending on the isoform typically ranging from 34 to 42 kDa. VEGFA is expressed in many tissues including fibroblasts macrophages endothelial cells and platelets. Its expression levels can increase in response to stimuli like hypoxia or inflammatory cytokines. VEGFA is an important target in research for therapies related to vascular diseases and cancer.
Biological function summary

VEGFA functions by promoting the proliferation and migration of vascular endothelial cells. It operates both as a homodimer and as part of complex signaling cascades interacting with VEGF receptors on cell surfaces to trigger downstream signals for angiogenesis. This includes endothelial cell growth migration and the new blood vessel formation process. VEGFA's activity is important for physiological processes such as wound healing and embryonic development and it also contributes to pathological conditions through its unregulated expression in diseases.

Pathways

Many processes involve VEGFA including the PI3K/AKT pathway and the MAPK/ERK pathway. These pathways regulate cell survival growth and differentiation. Other proteins like PLGF (placenta growth factor) and VEGFB often accompany VEGFA in these pathways aiding in distinct but overlapping roles. These interactions are transmitted through binding to VEGF receptors such as VEGFR-1 and VEGFR-2 subsequently activating various signaling cascades necessary for cellular and tissue homeostasis.

VEGFA relates to cancer and age-related macular degeneration among others. In cancer overexpression of VEGFA can lead to excessive angiogenesis supplying blood to tumors and facilitating tumor growth. In age-related macular degeneration upregulation of VEGFA contributes to the progression of the disease by promoting the formation of abnormal blood vessels under the retina. Anti-VEGFA therapies such as anti-VEGF antibodies (e.g. bevacizumab) can target these overexpressed pathways. VEGFA interacts with other proteins like HIF-1α which regulates its expression under hypoxia a common condition in tumors.
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Specifications

Form

Liquid

Additional notes

Expressed in E. coli and purified by conventional chromatography, after refolding of the isolated inclusion bodies in a renaturation buffer.

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General info

Function

N-VEGF. Participates in the induction of key genes involved in the response to hypoxia and in the induction of angiogenesis such as HIF1A (PubMed : 35455969). Involved in protecting cells from hypoxia-mediated cell death (By similarity).. VEGFA. Growth factor active in angiogenesis, vasculogenesis and endothelial cell growth (PubMed : 34530889). 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. Binds to the NRP1/neuropilin-1 receptor. Binding to NRP1 initiates a signaling pathway needed for motor neuron axon guidance and cell body migration, including for the caudal migration of facial motor neurons from rhombomere 4 to rhombomere 6 during embryonic development (By similarity). Also binds the DEAR/FBXW7-AS1 receptor (PubMed : 17446437).. Isoform VEGF165B. Binds to the KDR receptor but does not activate downstream signaling pathways, does not activate angiogenesis and inhibits tumor growth.

Sequence similarities

Belongs to the PDGF/VEGF growth factor family.

Post-translational modifications

Vascular endothelial growth factor A, long form. Produced by use of an alternative upstream CUG codon and post-translationally processed into the N-terminal N-VEGF form and the C-terminal secreted VEGFA form.

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Product protocols

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Target data

N-VEGF. Participates in the induction of key genes involved in the response to hypoxia and in the induction of angiogenesis such as HIF1A (PubMed : 35455969). Involved in protecting cells from hypoxia-mediated cell death (By similarity).. VEGFA. Growth factor active in angiogenesis, vasculogenesis and endothelial cell growth (PubMed : 34530889). 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. Binds to the NRP1/neuropilin-1 receptor. Binding to NRP1 initiates a signaling pathway needed for motor neuron axon guidance and cell body migration, including for the caudal migration of facial motor neurons from rhombomere 4 to rhombomere 6 during embryonic development (By similarity). Also binds the DEAR/FBXW7-AS1 receptor (PubMed : 17446437).. Isoform VEGF165B. Binds to the KDR receptor but does not activate downstream signaling pathways, does not activate angiogenesis and inhibits tumor growth.
See full target information VEGFA
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