AB53824

Recombinant human VEGFA protein

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Recombinant human VEGFA protein is a Human Full Length protein, expressed in Escherichia coli, with >95%, suitable for SDS-PAGE.

View Alternative Names

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

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Functional Studies - Recombinant human VEGFA protein (AB53824)

FuncS

Unknown

Functional Studies - Recombinant human VEGFA protein (AB53824)

VEGF145-induced proliferation of primary human dermal lymphatic endothelial cells (HDLEC). HDLECs were stimulated with increasing amounts of human VEGF145.

SDS-PAGE - Recombinant human VEGFA protein (AB53824)

SDS-PAGE

Unknown

SDS-PAGE - Recombinant human VEGFA protein (AB53824)

SDS-PAGE page analysis of ab53824

SDS-PAGE

Unknown

SDS-PAGE - Recombinant human VEGFA protein (AB53824)

SDS-PAGE analysis of recombinant human VEGF-A isoforms produced in E. coli. Samples were loaded under non-reducing conditions in 15% SDS-polyacrylamide gel and stained with Silver stain.

Key facts

Purity

>95% SDS-PAGE

Expression system

Escherichia coli

Applications

SDS-PAGE

applications

Biologically active

Yes

Biological activity

The ED₅₀ for stimulation of 3H-thymidine incorporation and cell proliferation by human umbilical vein endothelial cells for VEGF has been determined to be in the range of 10 ng/ml.

Specific activity: 2.5 x 10⁵ units/mg.

Accession

P15692

Animal free

Carrier free

Species

Human

Reconstitution

Reconstitute in PBS or medium, 0.1% HSA or BSA

Storage buffer

Constituents: 0.3% Acetic acid

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>" } } }

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Product details

A vascular endothelial growth factor (VEGF) mRNA species containing exons 1–6 and 8 of the VEGF gene was found to be expressed as a major VEGF mRNA form in several cell lines derived from carcinomas of the female reproductive system. This mRNA is predicted to encode a VEGF form of 145 amino acids (VEGF145). VEGF145 produced in insect cells is a homodimeric, 20,5 kDa protein belonging to the VEGFA family. Recombinant VEGF145 (ab53824) induced the proliferation of vascular endothelial cells and promoted angiogenesis in vivo. VEGF145 binds to the KDR/flk-1 receptor and to heparin. VEGF145 does not bind to two additional endothelial cell surface receptors that are recognized by VEGF165. VEGF145 binds efficiently to ECM becoming active. Binding of VEGF145 to ECM was not affected by heparinase digestion. Therefore, it has a unique combination of biological properties distinct from those of previously characterized VEGF species.

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Sequence info

[{"sequence":"","proteinLength":"Full Length","predictedMolecularWeight":null,"actualMolecularWeight":null,"aminoAcidEnd":0,"aminoAcidStart":0,"nature":"Recombinant","expressionSystem":null,"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

Lyophilized

Additional notes

Purity: 95%, by SDS-PAGE and visualised by silver stain Endotoxin level: < 0.1 ng per ug of VEGF

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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

Visit the General protocols
Visit the Troubleshooting

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Target data

See full target information VEGFA

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Product promise

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Recombinant human VEGFA protein

Functional Studies - Recombinant human VEGFA protein (AB53824)

SDS-PAGE - Recombinant human VEGFA protein (AB53824)

SDS-PAGE - Recombinant human VEGFA protein (AB53824)

Key facts

Purity

Expression system

Tags

Applications

Biologically active

Biological activity

Accession

Animal free

Carrier free

Species

Reconstitution

Storage buffer

Reactivity data

Product details

Sequence info

Properties and storage information

Shipped at conditions

Appropriate short-term storage conditions

Appropriate long-term storage conditions

Aliquoting information

Storage information

Supplementary information

Biological function summary

Pathways

Specifications

Form

Additional notes

General info

Function

Sequence similarities

Post-translational modifications

Product protocols

Target data

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