DLL1 (Delta-like protein 1) is a transmembrane glycoprotein in the Delta/Serrate/Lag-2 (DSL) family of Notch ligands. It plays a role in central nervous system morphogenesis, intervertebral joint formation, inner ear hair cell development and patterning, and arteriogenesis. It regulates the homeostasis and differentiation of neural, pancreatic, and myogenic progenitor cells, T and B lymphocytes. DLL1 is overexpressed in a number of cancers and contributes to tumorigenesis. The extracellular region of DLL1 can be shed from the cell surface, and the intracellular domain can be cleaved by gamma-secretase to translocate to the nucleus and regulate gene transcription.
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Key Product Details
Assay Length
4.5 hours
Sample Type & Volume Required Per Well
Cell Culture Supernates (50 µL), Serum (10 µL), EDTA Plasma (10 µL), Heparin Plasma (10 µL), Urine (50 µL), Human Milk (50 µL)
Sensitivity
17.4 pg/mL
Assay Range
78.1-5000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine, Human Milk)
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Product Summary for Human DLL1 Quantikine ELISA Kit
The Quantikine Human DLL1 Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human DLL1 in cell culture supernates, serum, plasma, urine, and human milk. It contains NS0-expressed recombinant human DLL1 and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human DLL1 showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human DLL1.
Product Specifications
Assay Type
Solid Phase Sandwich ELISA
Format
96-well strip plate
Measurement
Quantitative ELISA
Detection Method
Colorimetric - 450nm (TMB)
Conjugate
HRP
Species
Human
Specificity
Natural and recombinant human DLL10
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules. < 50% cross-species reactivity observed with species tested.
Interference
No significant interference observed with available related molecules.
Precision
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
Cell Culture Supernates, EDTA Plasma, Heparin Plasma, Human Milk, Serum, Urine
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (pg/mL) | 638 | 1468 | 2934 | 592 | 1340 | 2714 |
| Standard Deviation | 16.0 | 38.1 | 76.1 | 42.4 | 85.7 | 189 |
| CV% | 2.5 | 2.6 | 2.6 | 7.2 | 6.4 | 7.0 |
Recovery for Human DLL1 Quantikine ELISA Kit
The recovery of DLL1 spiked to levels throughout the range of the assay was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=4) | 102 | 96-108 |
Linearity
To assess the linearity of the assay, samples containing and/or spiked with high concentrations of DLL1 were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Scientific Data Images for Human DLL1 Quantikine ELISA Kit
Human DLL1 ELISA Standard Curve
Preparation and Storage
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: DLL1
Long Name
Delta-like 1
Alternate Names
Delta 1
Gene Symbol
DLL1
Additional DLL1 Products
Product Documents for Human DLL1 Quantikine ELISA Kit
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human DLL1 Quantikine ELISA Kit
For research use only
⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.Related Research Areas
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Protocols
View specific protocols for Human DLL1 Quantikine ELISA Kit (DLL10):
Refer to the product for complete assay procedure.
Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
- Prepare all reagents, standard dilutions, and samples as directed in the product insert.
- Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.
- Add 100 µL of Assay Diluent to each well.
- Add 50 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours on a horizontal orbital microplate shaker.
- Aspirate each well and wash, repeating the process 3 times for a total of 4 washes.
- Add 200 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours on the shaker.
- Aspirate and wash 4 times.
- Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes on the benchtop. PROTECT FROM LIGHT.
- Add 50 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.
100 µL Assay Diluent
50 µL Standard, Control, or Sample
200 µL Conjugate
200 µL Substrate Solution
50 µL Stop Solution
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
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- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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Associated Pathways
