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Product Catalog
DLL4 ELISA Pair Set, Human ELISA Pair Set 
| Catalog | Size (Price) | Quantity | In Stock | Operation | Other Information |
| SEK10171 |
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Human DLL4 ELISA Pair Set
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Order or Inquire for DLL4 ELISA Pair Set |
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High affinity Human DLL4 ELISA Pair Set |
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Detection limit - 31.25 pg/ml |
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Affordable price and 30%-80% cost saving for Bulk order |
- Materials
- Protocol
- Trouble Shooting
- Image & Flash
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No signal |
Incorrect or no Detection Antibody was added |
Add appropriate Detection Antibody and continue |
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Substrate solution was not added |
Add substrate solution and continue |
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Incorrect storage condition |
Check if the kit is stored at recommended condition and used before expiration date |
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Poor Standard Curve |
Standard was incompletely reconstituted or was inappropriately stored |
Aliquot reconstituted standard and store at -70 ℃ |
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Imprecise / inaccurate pipetting |
Check / calibrate pipettes |
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Incubations done at inappropriate temperature, timing or agitation |
Follow the general ELISA protocol |
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Background wells were contaminated |
Avoid cross contamination by using the sealer appropriately |
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Poor detection value |
The concentration of antigen in samples was too low |
Enriching samples to increase the concentration of antigen |
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Samples were ineffective |
Check if the samples are stored at cold environment. Detect samples in timely manner |
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High Background |
Insufficient washes |
Use multichannel pipettes without touching the reagents on the plate |
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Increase cycles of washes and soaking time between washes |
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TMB Substrate Solution was contaminated |
TMB Substrate Solution should be clear and colorless prior to addition to wells |
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Materials were contaminated |
Use clean plates, tubes and pipettes tips |
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Non-specificity |
Samples were contaminated |
Avoid cross contamination of samples |
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The concentration of samples was too high |
Try higher dilution rate of samples |
Problems 
Possible Sources 
Solutions 
Human DLL4 ELISA Pair Set Related Products & Topics
Related Areas:
Proteins:
Antibodies:
Background
Delta-like protein 4 ( DLL4 ) is a type I membrane-bound Notch ligand characterized by an extracellular region containing several EGF-like domains and a DSL domain required for receptor binding, and is suggested to play a key role in vascular development and tumor angiogenesis. The Notch pathway is an evolutionary conserved intercellular signaling pathway involved in numerous biological processes including cell fate determination, cellular differentiation, proliferation, survival, and apoptosis. In mammalian cells, five Notch ligands (Jagged1, 2, DLL1, 3, 4) and four Notch receptors (Notch1-4) have been identified, and ligand-receptor interactions results in proteolysis and translocation of the Notch intracellular domain. As a ligand for Notch1 and Notch4, DLL4 is selectively expressed in the developing endothelium and in some tumor endothelium, and is induced by vascular endothelial growth factor (VEGF)-A and hypoxia. In recent studies, it has been revealed that this DLL4 inhibition may paradoxically lead to increased angiogenesis but poor tumor growth because of the non-functional. neovascularization, and constitutive expression of DLL4 may leads to a lethal lymphoproliferative disease. Accordingly, this may provide a new therapeutic approach for certain carcinomas.
