VEGF121 Protein, Human (HEK293)

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VEGF121 Protein is a subtype of Vascular Endothelial Growth Factor A (VEGF-A). VEGF-A is a key member of the VEGF family of cytokines that can promote neovascularization and increase vascular permeability. VEGF121 Protein, Human (HEK293) is the recombinant human-derived VEGF121 protein, expressed by HEK293 , with tag free. The total length of VEGF121 Protein, Human (HEK293) is 147 a.a., with molecular weight of ~19.9 & 17.0 kDa, respectively.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • Storage:
    Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • References
  • Help & FAQs

Biological Activity

Description

VEGF121 Protein is a subtype of Vascular Endothelial Growth Factor A (VEGF-A). VEGF-A is a key member of the VEGF family of cytokines that can promote neovascularization and increase vascular permeability. VEGF121 Protein, Human (HEK293) is the recombinant human-derived VEGF121 protein, expressed by HEK293 , with tag free. The total length of VEGF121 Protein, Human (HEK293) is 147 a.a., with molecular weight of ~19.9 & 17.0 kDa, respectively.

Background

VEGF121 is a subtype of Vascular Endothelial Growth Factor A (VEGF-A). VEGF-A is a growth factor active in angiogenesis, vasculogenesis, and endothelial cell growth. VEGF-A induces endothelial cell proliferation, promotes cell migration, inhibits apoptosis, and induces permeabilization of blood vessels. VEGF-A binds to the FLT1/VEGFR1 and KDR/VEGFR2 receptors, as well as heparan sulfate and heparin. It also binds to the NRP1/neuropilin-1 receptor. When VEGF-A binds to NRP1, it initiates a signaling pathway needed for motor neuron axon guidance and cell body migration, including the caudal migration of facial motor neurons from rhombomere 4 to rhombomere 6 during embryonic development. Additionally, VEGF-A binds to the DEAR/FBXW7-AS1 receptor.

Verified Bioactivity

1.Immobilized human VEGF121 at 2μg/mL (100μL/well) can bind human VEGFR2-Fc and the EC50 is 5-50 ng/mL.
2.Measured in a cell proliferation assay using human umbilical vein endothelial cells (HUVEC) and the ED50 is typically 3-15 ng/mL.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag Tag Free
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • VEGF121 (A27-R147)
      Accession # P15692-9
    • C-term
  • Protein Length

    Full Length of Isoform-9

  • Synonyms

    VEGFA; Vascular Endothelial Growth Factor A; VEGF; VPF; Vascular Permeability Factor; Vascular Endothelial Growth Factor A, Long Form; VEGF-A; L-VEGF; Vascular Endothelial Growth Factor A121; Vascular Endothelial Growth Factor A165; Vascular Endothelial G

  • AA Sequence

    APMAEGGGQNHHEVVKFMDVYQRSYCHPIETLVDIFQEYPDEIEYIFKPSCVPLMRCGGCCNDEGLECVPTEESNITMQIMRIKPHQGQHIGEMSFLQHNKCECRPKKDRARQEKCDKPRR

  • Predicted Molecular Mass

    14 kDa

  • Molecular Weight

    Approximately 20 kDa & 17 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

  • Glycosylation

    Yes

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4, 5% trehalose, 5% mannitol and 0.01% Tween 80.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

References

Calculators

Reconstitution Calculator

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) Volume (to add to vial)
=
Mass (in vial) Mass (in vial)
÷
Desired Reconstitution Concentration Desired Reconstitution Concentration
Dilution Calculator

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

Concentration (start) Concentration (start)
×
Volume (start) Volume (start)
=
Concentration (final) Concentration (final)
×
Volume (final) Volume (final)
The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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