Human VE Cadherin ARExSet® antibody pair for ELISA
Key features and details
- Species:
- Size:
- Sample Volume:
- Standard Curve Range:
- Assay type:
- Sensitivity:
- Operation Duration:
- Assay type:
-
Brand:
CAT.NO. : ASEH0091
US$ Please choose
US$ Please choose
Product Details
Background
The cadherin (Ca++-dependent adherence) superfamily is a large group of membrane-associated glycoproteins that engage in homotypic, calcium-dependent, cell-cell adhesion events. The superfamily can be divided into at least five major subfamilies based on molecule gene structure, and/or extracellular (EC) and intracellular domains (1-4). Subfamilies include classical/type I, atypical/type II, and desmosomal-related cadherins. VE-Cadherin (vascular endothelial cadherin; also cadherin-5 and CD144) is a 125 kDa atypical/type II subfamily cadherin. Its subfamily classification is based principally on its genomic structure, as its physical structure is notably divergent from other type II subfamily members. Mouse VE-Cadherin is synthesized as a 784 amino acid (aa) type I transmembrane (TM) preproprotein that contains a 24 aa signal peptide, a 21 aa prosequence, a 554 aa extracellular region (ECR), a 21 aa TM segment, and a 164 aa cytoplasmic domain. The ECR contains five Ca++-binding cadherin domains that are approximately 105 aa in length. Cadherin domains are comprised of two beta ‑sheets that are oriented like bread in a sandwich. Although complex, the N-terminal cadherin domain mediates trans interactions, while the internal domains contribute to cis multimerizations. Mouse VE-Cadherin ECR is 92%, 77%, and 73% aa identical to rat, human and porcine VE-Cadherin ECR, respectively. VE-Cadherin is involved in the maintenance of endothelial permeability. In this regard, VE-Cadherin does not initiate new blood vessel formation; it maintains it once formed. Thus, when VE‑Cadherin is downregulated, cells part and permeability increases. Notably, VEGF is known to promote vascular leakage, and apparently does so by inducing a beta ‑arrestin-dependent endocytosis of VE-Cadherin. Part of this effect may be mediated by VE‑Cadherin itself which is reported to increase the membrane half-life of VEGF R2. VE-Cadherin acts homotypically at sites of zonula adherens. On each expressing cell, it is proposed that VE-Cadherin first forms a trimer, which then dimerizes with a trimeric counterpart in-trans. Alternatively, two cis-dimers could act in-trans to generate homotypic binding. In addition to cell adhesion, VE‑Cadherin also is reported to mediate TGF-beta receptor assembly. When clustered, VE‑Cadherin enhances T beta RII/T beta RI assembly into an active receptor complex on endothelial cells. VE-Cadherin is expressed on endothelial cells, trophoblast cells, endothelial progenitor cells and embryonic hematopoietic cells.
Typical data
|
pg/ml |
O.D. |
Average |
Corrected |
|
|
0.00 |
0.0661 |
0.0763 |
0.0712 |
|
|
|
156.25 |
0.1063 |
0.1194 |
0.1129 |
|
0.0417 |
312.50 |
0.1551 |
0.1517 |
0.1534 |
|
0.0822 |
625.00 |
0.2260 |
0.2499 |
0.2380 |
|
0.1668 |
1250.00 |
0.3943 |
0.3720 |
0.3832 |
|
0.3120 |
2500.00 |
0.6515 |
0.5987 |
0.6251 |
|
0.5539 |
5000.00 |
1.2360 |
1.1820 |
1.2090 |
|
1.1378 |
10000.00 |
2.2000 |
2.1070 |
2.1535 |
Product Features
- Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time
- Development protocols are provided to guide further assay optimization
- Economical alternative to complete kits
Kit Content
- Capture Antibody
- Detection Antibody
- Recombinant Standard
- Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)
Other Reagents Required
ARExSet® Ancillary Reagent Kit (5 plates): containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and assay buffer.
- 96 well microplates: AREX Biosciences, Catalog # DSEP01. Plate Sealers: AREX Biosciences, Catalog # DSSF01.
- Coating Buffer: 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na2HPO4, 1.5 mM KH2PO4, pH 7.2-7.4, 0.2 μm fi
ltered . AREX Biosciences, Catalog # DSCB01. - Blocking Buffer: AREX Biosciences, Catalog # DSBB01.
- Wash Buffer: 0.05% Tween 20 in PBS, pH 7.2-7.4. AREX Biosciences, Catalog # DSWB01.
- Assay Buffer: 0.5%BSA，0.05%Tween20，PBS Solution. AREX Biosciences, Catalog # DSAB01
Substrate Solution: Tetramethylbenzidine. AREX Biosciences, Catalog # DSTS01. - Stop Solution: 0.5mol/ml H2SO4. AREX Biosciences, Catalog # DSSS01.
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