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Human Vascular endothelial cell growth factor receptor 2,VEGFR-2/Flk-1 ELISA kit

Product#: CS-CSB-E04763h
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DCP-HRPTBS1X

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Exclusively for HRP-based kits
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DCP-ALPTBS1X

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Exclusively for ALP-based kits

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Human ELISA Kit · Cardiovascular

Human Vascular endothelial cell growth factor receptor 2,VEGFR-2/Flk-1 ELISA kit

Sandwich quantitative immunoassay for kinase insert domain receptor (a type III receptor tyrosine kinase) in human serum, plasma, tissue homogenates  available in multiple catalog sizes:

Trial 24T 96T

Note: Please send inquiries regarding Trial 24T orders to support@diagnocine.com.

Detection Range
0.39-25 ng/mL
Sensitivity
0.098 ng/mL
Assay Time
1-5 hours
Sample Volume
50-100 μL
Product specifications
Target namekinase insert domain receptor (a type III receptor tyrosine kinase)
Uniprot No.P35968
SpeciesHomo sapiens (Human)
Sample typesserum, plasma, tissue homogenates
Detection range0.39 ng/mL-25 ng/mL
Sensitivity0.098 ng/mL
Assay time1-5h
Sample loading volume50-100μL
Detection wavelength450 nm
Assay principleSandwich (Quantitative)
Data analysisStandard curve + Curve Expert software
Research areaCardiovascular
Storage condition2-8°C (see protocol for full details)
Shipping condition4 °C
Shelf life6 months
kinase insert domain receptor (a type III receptor tyrosine kinase) serum plasma tissue homogenates Cardiovascular Human ELISA
Lead Time

10 business days

Processing + 3-5 days shipping

Availability

In Stock : USA

Worldwide shipping available

Assay principle
Sample prep
Antibody capture
450 nm detection
Standard curve
Quantification

In this sandwich ELISA, kinase insert domain receptor (a type III receptor tyrosine kinase) in the sample is captured between a pre-coated capture antibody and a detection antibody. Signal intensity is proportional to analyte concentration. Quantification uses a standard curve fitted with Curve Expert software, covering 0.39 ng/mL-25 ng/mL with a minimum detectable dose of 0.098 ng/mL.

For research use only (RUO). Not intended for diagnostic or therapeutic purposes. Validated in human serum, plasma, tissue homogenates matrices only.
Description

This Human VEGFR-2/Flk-1 ELISA Kit was designed for the quantitative measurement of Human VEGFR-2/Flk-1 protein in serum, plasma, tissue homogenates. It is a Sandwich ELISA kit, its detection range is 0.39 ng/mL-25 ng/mL and the sensitivity is 0.098 ng/mL.

Alternative Names
CD309 ELISA Kit; CD309 antigen ELISA Kit; EC 2.7.10.1 ELISA Kit; Fetal liver kinase 1 ELISA Kit; FLK-1 ELISA Kit; FLK1 ELISA Kit; FLK1, mouse, homolog of ELISA Kit; Kdr ELISA Kit; Kinase insert domain receptor (a type III receptor tyrosine kinase) ELISA Kit; Kinase insert domain receptor ELISA Kit; KRD1 ELISA Kit; Ly73 ELISA Kit; Protein tyrosine kinase receptor FLK1 ELISA Kit; Protein-tyrosine kinase receptor flk-1 ELISA Kit; soluble VEGFR2 ELISA Kit; Tyrosine kinase growth factor receptor ELISA Kit; Vascular endothelial growth factor receptor 2 ELISA Kit; VEGFR 2 ELISA Kit; VEGFR ELISA Kit; VEGFR-2 ELISA Kit; VEGFR2 ELISA Kit; VGFR2_HUMAN ELISA Kit
Function
Tyrosine-protein kinase that acts as a cell-surface receptor for VEGFA, VEGFC and VEGFD. Plays an essential role in the regulation of angiogenesis, vascular development, vascular permeability, and embryonic hematopoiesis. Promotes proliferation, survival, migration and differentiation of endothelial cells. Promotes reorganization of the actin cytoskeleton. Isoforms lacking a transmembrane domain, such as isoform 2 and isoform 3, may function as decoy receptors for VEGFA, VEGFC and/or VEGFD. Isoform 2 plays an important role as negative regulator of VEGFA- and VEGFC-mediated lymphangiogenesis by limiting the amount of free VEGFA and/or VEGFC and preventing their binding to FLT4. Modulates FLT1 and FLT4 signaling by forming heterodimers. Binding of vascular growth factors to isoform 1 leads to the activation of several signaling cascades. Activation of PLCG1 leads to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5-trisphosphate and the activation of protein kinase C. Mediates activation of MAPK1/ERK2, MAPK3/ERK1 and the MAP kinase signaling pathway, as well as of the AKT1 signaling pathway. Mediates phosphorylation of PIK3R1, the regulatory subunit of phosphatidylinositol 3-kinase, reorganization of the actin cytoskeleton and activation of PTK2/FAK1. Required for VEGFA-mediated induction of NOS2 and NOS3, leading to the production of the signaling molecule nitric oxide (NO) by endothelial cells. Phosphorylates PLCG1. Promotes phosphorylation of FYN, NCK1, NOS3, PIK3R1, PTK2/FAK1 and SRC.
Gene References into Functions
  1. Overexpression of peroxiredoxin 2 and VEGFR2 in pterygium might be involved in the pathogenesis or recurrence of pterygium. The increase of VEGFR2 might be related to the increase of peroxiredoxin 2 in response to excessive reactive oxygen species from ultraviolet exposure. PMID: 28489720
  2. upregulation of sVEGFR-1 with concomitant decline of PECAM-1 and sVEGFR-2 levels in preeclampsia compared to normotensive pregnancies, Irrespective of the HIV status PMID: 28609170
  3. by inhibiting the phosphorylation of VEGFR2, the P18 peptide ( functional fragment of pigment epithelial-derived factor (PEDF)modulates signalling transduction between VEGF/VEGFR2 and suppresses activation of the PI3K/Akt cascades, leading to an increase in mitochondrial-mediated apoptosis and anti-angiogenic activity. PMID: 28627623
  4. VEGF, VEGFR2 and GSTM1 polymorphisms in outcome of multiple myeloma patients treated with thalidomide-based regimens PMID: 28665417
  5. the difference between the pro- (VEGF165a) and antiangiogenic (VEGF165b) VEGF isoforms and its soluble receptors for severity of diabetic retinopathy, is reported. PMID: 28680264
  6. ATG5 and phospho-KDR expression was strongly associated with the density of vasculogenic mimicry in tumors and poor clinical outcome. PMID: 28812437
  7. This study provides new insights into the mechanism of VEGFR2 dimerization and activation. PMID: 28847506
  8. Increased expression of VEGFR2 correlated with differentiation. PMID: 28854900
  9. We found that depletion of FGD5 in microvascular cells inhibited their migration towards a stable VEGFA gradient. Furthermore, depletion of FGD5 resulted in accelerated VEGFR2 degradation, which was reverted by lactacystin-mediated proteasomal inhibition. Our results thus suggest a mechanism whereby FGD5 sustains VEGFA signaling and endothelial cell chemotaxis via inhibition of proteasome-dependent VEGFR2 degradation. PMID: 28927665
  10. The effects of Platelet-rich plasma on vascular endothelial growth factor receptor-2 (VEGFR2) and CD34 expression were evaluated using real-time PCR, flow cytometry, western blot, immunocytochemistry and pathological study, as were carried out in both human umbilical endothelial cell culture and rat skin PMID: 28948378
  11. Our data showed that ampelopsin inhibited angiogenesis with no cytotoxicity by suppressing both VEGFR2 signaling and HIF-1alpha expression. These results suggest that Hovenia dulcis Thunb. and its active compound ampelopsin exhibit potent antiangiogenic activities and therefore could be valuable for the prevention and treatment of angiogenesis-related diseases including cancer. PMID: 29039561
  12. Thioredoxin-interacting protein (TXNIP) is highly induced in retinal vascular endothelial cells under diabetic conditions. Data (including data from studies using knockout mice) suggest that TXNIP in retinal vascular endothelial cells plays role in diabetic retinal angiogenesis via VEGF/VEGFR2 and Akt/mTOR signaling. PMID: 29203232
  13. metformin's dual effect in hyperglycemia-chemical hypoxia is mediated by direct effect on VEGFR1/R2 leading to activation of cell migration through MMP16 and ROCK1 upregulation, and inhibition of apoptosis by increase in phospho-ERK1/2 and FABP4, components of VEGF signaling cascades PMID: 29351188
  14. MEG3 regulated by HIF-1alpha is required to maintain VEGFR2 expression in endothelial cells and plays a vital role for VEGFA-mediated endothelial angiogenesis. PMID: 29391273
  15. The findings indicate that miR-203a inhibits hepatocellular carcinoma cell invasion, metastasis, and angiogenesis by negatively targeting HOXD3 and suppressing cell signaling through the VEGFR pathway. PMID: 29402992
  16. In the in vitro tests, JFD-WS effectively inhibited HUVEC proliferation, migration, tube formation and VEGFR2 phosphorylation. Additionally, JFD-WS inhibited the formation of blood vessels in chick chorioallantoic membrane. While inhibiting the xenograft tumor growth in experimental mice, JFD-WS decreased the plasma MUC1 levels PMID: 29436685
  17. Anlotinib occupied the ATP-binding pocket of VEGFR2 tyrosine kinase. PMID: 29446853
  18. anlotinib inhibits the activation of VEGFR2, PDGFRbeta and FGFR1 as well their common downstream ERK signaling PMID: 29454091
  19. these results indicate that sFlt-1 up-regulation by VEGF may be mediated by the VEGF/Flt-1 and/or VEGF/KDR signaling pathways. PMID: 29497919
  20. VEGFA activates VEGFR1 homodimers and AKT, leading to a cytoprotective response, whilst abluminal VEGFA induces vascular leakage via VEGFR2 homodimers and p38 PMID: 29734754
  21. Inhibition of FPR1 and/or NADPH oxidase functions prevents VEGFR2 transactivation and the triggering of the downstream signalling cascades. PMID: 29743977
  22. Authors demonstrated that when VEGFR2 was inhibited, NRP-1 appeared to regulate RAD51 expression through the VEGFR2-independent ABL-1 pathway, consequently regulating radiation sensitivity. In addition, the combined inhibition of VEGFR2 and NRP-1 appears to sensitize cancer cells to radiation. PMID: 29777301
  23. Single nucleotide polymorphism of VEGFR2 is associated with relapse in gastroenteropancreatic neuroendocrine neoplasms. PMID: 29787601
  24. miR-195 suppresses cell proliferation of ovarian cancer cells through regulation of VEGFR2 and AKT signaling pathways. PMID: 29845300
  25. none of the investigated VEGFR-2 gene polymorphisms was found to be an independent prognostic marker for infantile hemangioma. PMID: 29984822
  26. Study confirmed prognostic effect of EGFR and VEGFR2 for recurrent disease and survival rates in patients with epithelial ovarian cancer. PMID: 30066848
  27. This study shows that decreasing the ratio of glutathione to oxidized glutathione with diamide leads to enhanced protein S-glutathionylation, increased reactive oxygen species (ROS) production, and enhanced VEGFR2 activation. PMID: 30096614
  28. VEGFR2 is regulated by deSUMOylation during pathological angiogenesis. PMID: 30120232
  29. miR424 may target VEGFR2 and inhibit Hemangioma derived endothelial cell growth. PMID: 30132564
  30. These results suggest functional interactions among ATX, VEGFR-2, and VEGFR-3 in the modulation of hemovascular and lymphovascular cell activation during vascular development. PMID: 30456868
++ 20 more research findings link this target to additional biology. Showing the 30 most recent — the full set appears on the complete datasheet.
Involvement in disease
Hemangioma, capillary infantile (HCI)
Tissue Specificity
Detected in cornea (at protein level). Widely expressed.
Subcellular Location
Cell junction. Endoplasmic reticulum. Cell membrane.; [Isoform 1]: Cell membrane; Single-pass type I membrane protein. Cytoplasm. Nucleus. Cytoplasmic vesicle. Early endosome. Note=Detected on caveolae-enriched lipid rafts at the cell surface. Is recycled from the plasma membrane to endosomes and back again. Phosphorylation triggered by VEGFA binding promotes internalization and subsequent degradation. VEGFA binding triggers internalization and translocation to the nucleus.; [Isoform 2]: Secreted.; [Isoform 3]: Secreted.
Protein Families
Protein kinase superfamily, Tyr protein kinase family, CSF-1/PDGF receptor subfamily
Database Links

HGNC: 6307

OMIM: 191306

KEGG: hsa:3791

STRING: 9606.ENSP00000263923

UniGene: Hs.479756

Precision

 

Intra-assay Precision (Precision within an assay): CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess.

Inter-assay Precision (Precision between assays):CV%<10%

Three samples of known concentration were tested in twenty assays to assess.

 

Human Vascular endothelial cell growth factor receptor 2,VEGFR-2/Flk-1 ELISA kit

Typical Data

These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.

Human Vascular endothelial cell growth factor receptor 2,VEGFR-2/Flk-1 ELISA kit

Human Vascular endothelial cell growth factor receptor 2,VEGFR-2/Flk-1 ELISA kit

Linearity

 

To assess the linearity of the assay, samples were spiked with high concentrations of human VEGFR-2 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.

 

Human Vascular endothelial cell growth factor receptor 2,VEGFR-2/Flk-1 ELISA kit

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