Recombinant Mouse VEGFR2/Flk-1 Fc Chimera Protein
R&D Systems, part of Bio-Techne | Catalog # 443-KD
Key Product Details
Source
NS0
Accession #
Structure / Form
Disulfide-linked homodimer
Conjugate
Unconjugated
Applications
Bioactivity
Product Specifications
Source
Mouse myeloma cell line, NS0-derived mouse VEGFR2/KDR/Flk-1 protein
| Mouse VEGFR2 (Ala20-Glu762) Accession # P35918 |
IEGRMD | Human IgG1 (Pro100-Lys330) |
6-His tag |
| N-terminus | C-terminus | ||
Purity
>90%, 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.
N-terminal Sequence Analysis
Ala20
Predicted Molecular Mass
110 kDa (monomer)
SDS-PAGE
166-191 kDa, reducing conditions
Activity
Measured by its ability to inhibit the VEGF-dependent proliferation of HUVEC human umbilical vein endothelial cells.
The ED50 for this effect is 10-30 ng/mL in the presence of 5 ng/mL recombinant mouse VEGF.
The ED50 for this effect is 10-30 ng/mL in the presence of 5 ng/mL recombinant mouse VEGF.
Formulation, Preparation and Storage
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.
Carrier: 443-KD
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 50 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.
|
Carrier Free: 443-KD/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.
|
Background: VEGFR2/KDR/Flk-1
VEGFR2 (KDR/Flk-1), VEGFR1 (Flt-1) and VEGFR3 (Flt-4) belong to the class III subfamily of receptor tyrosine kinases (RTKs). All three receptors contain seven immunoglobulin-like repeats in their extracellular domains and kinase insert domains in their intracellular regions. The expression of VEGFR1, 2, and 3 is almost exclusively restricted to the endothelial cells. These receptors are likely to play essential roles in vasculogenesis and angiogenesis.
Mouse VEGFR2 cDNA encodes a 1367 amino acid (aa) residue precursor protein with a 19 aa residue signal peptide. Mature VEGFR2 is composed of a 743 aa residue extracellular domain, a 22 aa residue transmembrane domain and a 583 aa residue cytoplasmic domain. In contrast to VEGFR1 which binds both PlGF and VEGF with high affinity, VEGFR2 binds VEGF but not PlGF with high affinity. The recombinant soluble VEGFR2 Fc Chimera binds VEGF with high affinity and is a potent VEGF antagonist.
References
- Ferra, N. and R. Davis-Smyth (1997) Endocrine Reviews 18:4.
- Achen, M.G. et al. (1998) Proc. Natl. Acad. Sci. USA. 95:548.
Long Name
Vascular Endothelial Growth Factor Receptor 2
Alternate Names
CD309, Flk-1, Flk1, KDR, KRD1, Ly73, VEGF R2
Gene Symbol
KDR
UniProt
Additional VEGFR2/KDR/Flk-1 Products
Product Documents for Recombinant Mouse VEGFR2/Flk-1 Fc Chimera Protein
Product Specific Notices for Recombinant Mouse VEGFR2/Flk-1 Fc Chimera Protein
For research use only
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