Recombinant Human VEGF 162 Protein, CF

Formulations:
Catalog # Availability Size / Price Qty
2347-VE-025/CF
Product Details
Citations (2)
FAQs
Reviews

Recombinant Human VEGF 162 Protein, CF Summary

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured in a cell proliferation assay using HUVEC human umbilical vein endothelial cells. The ED50 for this effect is 1.0-5.0 ng/mL.
Source
Mouse myeloma cell line, NS0-derived human VEGF protein
Ala27-Arg188
Accession #
N-terminal Sequence
Analysis
Ala27
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
18.8 kDa (monomer)
SDS-PAGE
15-20 kDa, reducing conditions

Product Datasheets

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

2347-VE/CF

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

2347-VE

Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: VEGF

The human VEGF-A gene contains eight exons plus a nontraditional ninth exon in the 3’ UTR (1). The A gene gives rise to multiple splice variants of VEGF-A, ranging from 121 amino acids (aa) to 206 aa in length. All human splice variants contain exons 1-5 and some part of exon 8. Exons 6 and 7 are split into at least two parts, some of which may be included in any one molecule (1-5). The nontraditional 9th exon is a substitute for exon 8. Incorporation of the 9th exon results in a non-signaling form of VEGF (5). VEGF162 is a VEGF isoform that induces endothelial cell proliferation in vitro and angiogenesis in vivo (5). It is synthesized as a 40-45 kDa disulfide-linked homodimer whose subunits are a product of exons 1-5, 6a, 6b and 8 (5). The three aa difference between VEGF165 and VEGF162 is attributable to the fact that the 165 form only utilizes exon 7 while the 162 form only utilizes exon 6. Within exon 6, exon 6a contributes 24 aa while exon 6b contributes 17 aa (aa 116‑156 in the mature segment) (2). Exon 6a is not commonly found with exon 6b. In VEGF162, exon 6b appears to act as a counterpart to the activity of exon 6a. That is, the product of exon 6a normally promotes VEGF binding to basement membrane while the product of exon 6b promotes VEGF dissociation and solubilization. In this case, VEGF162 is notably soluble.

References
  1. Ferrara, N. (2004) Endocrine Rev. 25:581.
  2. Lange, T. et al. (2003) J. Biol. Chem. 278:17164.
  3. Whittle, C. et al. (1999) Clin. Sci. 97:303.
  4. Jingjing, L. et al. (1999) Invest. Ophthalmol. Vis. Sci. 40:752.
  5. Woolard, J. et al. (2004) Cancer Res. 64:7822.
Long Name
Vascular Endothelial Growth Factor
Entrez Gene IDs
7422 (Human); 22339 (Mouse); 83785 (Rat); 281572 (Bovine); 403802 (Canine); 493845 (Feline); 30682 (Zebrafish)
Alternate Names
MVCD1; VAS; vascular endothelial growth factor A; Vascular permeability factor; Vasculotropin; VEGF; VEGFA; VEGF-A; VEGFMGC70609; VPF; VPFvascular endothelial growth factor

Citations for Recombinant Human VEGF 162 Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Widespread potential for growth-factor-driven resistance to anticancer kinase inhibitors.
    Authors: Wilson TR, Fridlyand J, Yan Y, Penuel E, Burton L, Chan E, Peng J, Lin E, Wang Y, Sosman J, Ribas A, Li J, Moffat J, Sutherlin DP, Koeppen H, Merchant M, Neve R, Settleman J
    Nature, 2012;487(7408):505-9.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  2. Differential roles of vascular endothelial growth factor receptors 1 and 2 in dendritic cell differentiation.
    Authors: Dikov MM, Ohm JE, Ray N, Tchekneva EE, Burlison J, Moghanaki D, Nadaf S, Carbone DP
    J. Immunol., 2005;174(1):215-22.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay

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