Human VEGF R2/KDR/Flk-1 Antibody

(7 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human VEGF R2 in direct ELISAs and Western blots. In Western blots, this antibody does not cross-react with recombinant human (rh) VEGF R1, rhVEGF R3, or recombinant mouse VEGF R2.
  • Source
    Monoclonal Mouse IgG1 Clone # 89115
  • Purification
    Protein A or G purified from ascites
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived recombinant human VEGF R2
    Ala20-Glu764
    Accession # P35968
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    Recombinant Human VEGF R2/KDR/Flk-1 Fc Chimera (Catalog # 357-KD)
    under non-reducing conditions only. It is recommended to use Goat Anti-Human VEGF R2/KDR/Flk‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF357)
  • Immunohistochemistry
    8-25 µg/mL
    See below
  • Immunocytochemistry
    5-25 µg/mL
    See below
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.
Data Examples
Immunohistochemistry
VEGF R2/KDR/Flk‑1 in Human Placenta. VEGF R2/KDR/Flk‑1 was detected in immersion fixed paraffin-embedded sections of human placenta using 25 µg/mL Human VEGF R2/KDR/Flk‑1 Monoclonal Antibody (Catalog # MAB3571) overnight at 4 °C. Tissue was stained with the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Immunohistochemistry
VEGF R2/KDR/Flk‑1 in Human Kidney. VEGF R2/KDR/Flk‑1 was detected in immersion fixed paraffin-embedded sections of human kidney array using Human VEGF R2/KDR/Flk‑1 Monoclonal Antibody (Catalog # MAB3571) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Lower panel shows a lack of labeling if primary antibodies are omitted and tissue is stained only with secondary antibody followed by incubation with detection reagents. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Immunocytochemistry
VEGF R2/KDR/Flk‑1 in HUVECs and Human HeLa Cell Line. VEGF R2/KDR/Flk‑1 was detected in immersion fixed human umbilical vein endothelial cells (HUVECs; left panel) but is not detected in Hela human cervical epithelial carcinoma cell line (right panel) using Mouse Anti-Human VEGF R2/KDR/Flk‑1 Monoclonal Antibody (Catalog # MAB3571) at 8 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm of HUVECs. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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: VEGF R2/KDR/Flk-1

VEGF R2 (KDR/Flk-1), VEGF R1 (Flt-1), and VEGF R3 (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 VEGF R1, 2, and 3 is almost exclusively restricted to the endothelial cells. These receptors are likely to play essential roles in vasculogenesis and angiogenesis.

VEGF R2 cDNA encodes a 1356 amino acid (aa) residue precursor protein with a 19 aa residue signal peptide. Mature VEGF R2 is composed of a 745 aa residue extracellular domain, a 25 aa residue transmembrane domain and a 567 aa residue cytoplasmic domain. In contrast to VEGF R1 which binds both PlGF and VEGF with high affinity, VEGF R2 binds VEGF but not PlGF with high affinity. The recombinant soluble VEGF R2/Fc chimera binds VEGF with high affinity and is a potent VEGF antagonist.

  • References:
    1. 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; Protein-tyrosine kinase receptor flk-1; soluble VEGFR2; vascular endothelial growth factor receptor 2; VEGF R2; VEGFR; VEGFR2; VEGFR-2
Related Research Areas
Citations:

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.

7 Citations: Showing 1 - 7
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Species
Applications
Sample Type
  1. A novel serum-free monolayer culture for orderly hematopoietic differentiation of human pluripotent cells via mesodermal progenitors.
    Authors: Niwa A, Heike T, Umeda K
    PLoS ONE, 2011;6(7):e22261.
    Species: Human
    Sample Type: Whole Cells
    Application: ICC
  2. Tumour vascularization via endothelial differentiation of glioblastoma stem-like cells.
    Authors: Ricci-Vitiani L, Pallini R, Biffoni M, Todaro M, Invernici G, Cenci T, Maira G, Parati EA, Stassi G, Larocca LM, De Maria R
    Nature, 2010;468(7325):824-8.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC Paraffin-embedded
  3. Adenoviral expression of vascular endothelial growth factor splice variants differentially regulate bone marrow-derived mesenchymal stem cells.
    Authors: Lin H, Shabbir A, Molnar M, Yang J, Marion S, Canty JM, Lee T
    J. Cell. Physiol., 2008;216(2):458-68.
    Species: Porcine
    Sample Type: Whole Cells
    Application: ICC
  4. Development of anti-atherosclerotic tissue-engineered blood vessel by A20-regulated endothelial progenitor cells seeding decellularized vascular matrix.
    Authors: Zhu C, Ying D, Mi J, Li L, Zeng W, Hou C, Sun J, Yuan W, Wen C, Zhang W
    Biomaterials, 2008;29(17):2628-36.
    Species: Human
    Sample Type: Whole Cells
    Application: ICC
  5. Thrombopoietin enhances generation of CD34+ cells from human embryonic stem cells.
    Authors: Srivastava AS, Nedelcu E, Esmaeli-Azad B, Mishra R, Carrier E
    Stem Cells, 2007;25(6):1456-61.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  6. Expression of VEGFR-2 on HaCaT cells is regulated by VEGF and plays an active role in mediating VEGF induced effects.
    Authors: Yang XH, Man XY, Cai SQ, Yao YG, Bu ZY, Zheng M
    Biochem. Biophys. Res. Commun., 2006;349(1):31-8.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  7. Isolation of renal progenitor cells from adult human kidney.
    Authors: Bussolati B, Bruno S, Grange C, Buttiglieri S, Deregibus MC, Cantino D, Camussi G
    Am. J. Pathol., 2005;166(2):545-55.
    Species: Human
    Sample Type: Whole Cells
    Application: ICC
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Isotype Controls
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Mouse IgG1 Isotype Control

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Mouse IgG1 Isotype Control

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Secondary Antibodies
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Donkey Anti-Mouse IgG NorthernLights™ NL557-conjugate Antibody

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Donkey Anti-Mouse IgG Biotinylated Antibody

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Mouse IgG HRP-conjugated Antibody

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Mouse F(ab)2 IgG (H+L) APC-conjugated Antibody

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Donkey Anti-Mouse IgG NorthernLights™ NL637-conjugated Antibody

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Donkey Anti-Mouse IgG NorthernLights™ NL493-conjugated Antibody

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Mouse F(ab)2 IgG (H+L) Fluorescein-conjugated Antibody

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Mouse IgG Antibody

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Goat Anti-Mouse IgG Biotinylated Antibody

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Mouse/Rabbit IgG VisUCyte HRP Polymer Antibody

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Mouse IgG VisUCyte HRP Polymer Antibody

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Mouse F(ab)2 IgG (H+L) PerCP-conjugated Antibody

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Goat Anti-Mouse IgG Fc Affinity Purified Polyclonal Ab

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