Human VEGFR2/KDR/Flk-1 Antibody

Catalog #: MAB3572R Datasheet

Recombinant Monoclonal Antibody

Catalog #	Availability	Size / Price	Qty
MAB3572R-100
MAB3572R-SP

Detection of VEGFR2/KDR/Flk‑1 in HUVEC Human Cells by Flow Cytometry.

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All VEGFR2/KDR/Flk-1 Antibodies

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Human VEGFR2/KDR/Flk-1 Antibody Summary

Species Reactivity

Human

Specificity

Detects human VEGFR2/KDR/Flk-1 in direct ELISAs.

Source

Recombinant Monoclonal Mouse IgG₁ Clone # 89106R

Purification

Protein A or G purified from cell culture supernatant

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant human VEGFR2/KDR/Flk-1
Ala20-Glu764
Accession # P35968

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Flow Cytometry

0.25 µg/10⁶ cells

See below

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Neutralization

Measured by its ability to neutralize VEGFR2/KDR/Flk‑1-mediated inhibition of proliferation in HUVEC human umbilical vein endothelial cells. The Neutralization Dose (ND₅₀) is typically 10-50 ng/mL in the presence of 50 ng/mL Recombinant Human VEGFR2/KDR/Flk‑1 Fc Chimera and 10 ng/mL Recombinant Human VEGF₁₆₅.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry

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Detection of VEGFR2/KDR/Flk‑1 in HUVEC Human Cells by Flow Cytometry. HUVEC human umbilical vein endothelial cells were stained with Mouse Anti-Human VEGFR2/KDR/Flk-1 Monoclonal Antibody (Catalog # MAB3572R, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). View our protocol for Staining Membrane-associated Proteins.

Neutralization

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VEGFR2/KDR Inhibition of VEGF-dependent Cell Proliferation and Neutralization by Human VEGFR2/KDR Antibody. Recombinant Human VEGFR2/KDR Fc Chimera (Catalog # 357-KD) inhibits Recombinant Human VEGF₁₆₅(Catalog # 293-VE) induced proliferation in HUVEC human umbilical vein endothelial cells in a dose-dependent manner (orange line). Inhibition of Recombinant Human VEGF₁₆₅(10 ng/mL) activity elicited by Recombinant Human VEGFR2/KDR Fc Chimera (50 ng/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human VEGFR2/KDR Monoclonal Antibody (Catalog # MAB3572R). The ND₅₀ is typically 10-50 ng/mL.

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

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. Mature VEGFR2 is composed of a 745 aa extracellular domain, a 25 aa transmembrane domain and a 567 aa 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.

Long Name

Vascular Endothelial Growth Factor Receptor 2

Entrez Gene IDs

3791 (Human); 16542 (Mouse)

Alternate Names

CD309 antigen; CD309; EC 2.7.10; EC 2.7.10.1; Fetal liver kinase 1; fetal liver kinase-1; Flk1; Flk-1; FLK1tyrosine kinase growth factor receptor; KDR; kinase insert domain receptor (a type III receptor tyrosine kinase); Kinase insert domain receptor; KRD1; Ly73; Protein-tyrosine kinase receptor flk-1; soluble VEGFR2; vascular endothelial growth factor receptor 2; VEGF R2; VEGFR; VEGFR2; VEGFR-2