• NatureRecombinant
  • SourceE. coli
  • Amino Acid Sequence
    • SpeciesHuman
    • Molecular weight27 kDa


Our Abpromise guarantee covers the use of ab9571 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications

    Cell differentiation

    Cellular activation

    Functional Studies


  • FormLyophilised
  • Additional NotesThe biological activity of this product is determined by the dose-dependent stimulation of the proliferation of human umbilical vein endothelial cells (HUVEC) using a concentration range of 1.0-8.0 ng/ml.
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Store at +4°C short term (1-2 weeks). Aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.


    This product is an active protein and may elicit a biological response in vivo, handle with caution.

  • ReconstitutionReconstitute in 100ul dH2O

General info

  • Alternative names
    • MGC70609
    • MVCD1
    • Vascular Endothelial Growth Factor
    • Vascular endothelial growth factor A
    • Vascular Permeability Factor
    • VEGF-A
    • VEGFA
    • VPF
    see all
  • FunctionGrowth 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.
  • Tissue specificityIsoform VEGF189, isoform VEGF165 and isoform VEGF121 are widely expressed. Isoform VEGF206 and isoform VEGF145 are not widely expressed.
  • Involvement in diseaseDefects in VEGFA are a cause of susceptibility to microvascular complications of diabetes type 1 (MVCD1) [MIM:603933]. These are pathological conditions that develop in numerous tissues and organs as a consequence of diabetes mellitus. They include diabetic retinopathy, diabetic nephropathy leading to end-stage renal disease, and diabetic neuropathy. Diabetic retinopathy remains the major cause of new-onset blindness among diabetic adults. It is characterized by vascular permeability and increased tissue ischemia and angiogenesis.
  • Sequence similaritiesBelongs to the PDGF/VEGF growth factor family.
  • Cellular localizationSecreted. VEGF121 is acidic and freely secreted. VEGF165 is more basic, has heparin-binding properties and, although a signicant proportion remains cell-associated, most is freely secreted. VEGF189 is very basic, it is cell-associated after secretion and is bound avidly by heparin and the extracellular matrix, although it may be released as a soluble form by heparin, heparinase or plasmin.
  • Target information above from: UniProt accession P15692 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt

Active human VEGF full length protein images

  • Human embryonic stem cells (H9) were differentiated both as embryoid bodies and monolayer cultures (on Matrigel) using a protocol described in Kennedy et al., 2006. BMP-4, FGF-basic (ab9596) and VEGF (ab9571) were sequentially added to the media to direct differentiation. These images were taken at day 8, where cell adhesion antigens CD31 (ab32457 in green) and CD34 (ab8536 in red) are abundant and represent primitive haematopoietic cells within the culture. Dapi staining is shown in blue.

References for Active human VEGF full length protein (ab9571)

This product has been referenced in:
  • Kim DS  et al. Pituitary tumor transforming gene (PTTG) stimulates thyroid cell proliferation via a vascular endothelial growth factor/kinase insert domain receptor/inhibitor of DNA binding-3 autocrine pathway. J Clin Endocrinol Metab 91:4603-11 (2006). Read more (PubMed: 16926250) »
  • Rollin S  et al. VEGF-mediated endothelial P-selectin translocation: role of VEGF receptors and endogenous PAF synthesis. Blood 103:3789-97 (2004). Read more (PubMed: 14764537) »

See all 2 Publications for this product

Product Wall

The Active human VEGF full length protein (ab9571) has been tested on HUVECs and is known to stimulate proliferation of these cells, which shows that the GAG sites are present and active.
The recombinant human VEGF165 is a 38.2 kDa disulfide-linke...

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Thank you for contacting us and for your patience.

I had to contact the laboratory in order to get more information about the use of these three proteins.

I can confirm, that for the ab92965 SPARC protein (MBP) to our knowledge it ha...

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Thank you for contacting us. The sequences are as follows:

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Thank you for contacting us and your interest in our products.

We have a few different products which may be of interest to your customer. Proteins ab61861, ab56620 and ab83572 are all of the VEGF 165A form. Additionally, ab61861 and ab83572 ...

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Thank you for contacting us.

For the proteins, I would suggest using ab61861 as this protein is arecombinant Human VEGF 165A protein (double, non-glycosylated, polypeptide chain containing 165 amino acids, MW 38kDa, expressed in E.coli). Read More

Thank you for contacting us today. I can confirm that the VEGF protein ab9571 has been used in ELISA with the VEGF antibody ab9570. Therefore they are a suitable match and ab9571 can be used to generate a standard curve for ELISA. Please let me ...

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Thank you for your enquiry. Please see the response from the originator of the recombinant protein: Regarding our human VEGF, we test this by the dose-dependent stimulation of the proliferation of human umbilical vein endothelial cells (HUVEC) us...

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Thank you very much for your enquiry and patience. Ab9571 should be reconstituted with water to a concentration of 0.1-1.0 mg/ml. Also, this product was sterile filtered and it is greater than 98% pure by SDS-PAGE and HPLC analyses. Please con...

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