E-Selectin, also known as CD62E, is expressed on vascular endothelial cells in response to IL-1 beta and TNF-alpha. It is a lectin that binds to sialylated or fucosylated molecules on neutrophils, monocytes, and a subset of memory T cells. E-Selectin mediates the initial attachment of circulating leukocytes to the blood vessel wall during inflammation. This interaction permits leukocytes to roll along the vascular endothelium. Subsequent ICAM-1 and VCAM-1 mediated adhesion leads to extravasation of the leukocyte through the blood vessel wall into the extracellular matrix tissue.
Human sE-Selectin/CD62E Quantikine ELISA Kit
R&D Systems | Catalog # DSLE00
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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), Heparin Plasma (10 µL), Citrate Plasma (10 µL)
Sensitivity
0.027 ng/mL
Assay Range
0.125-8 ng/mL (Cell Culture Supernates, Serum, Heparin Plasma, Citrate Plasma)
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Product Summary for Human sE-Selectin/CD62E Quantikine ELISA Kit
The Quantikine Human sE-Selectin immunoassay is a 4.5 hour solid phase ELISA designed to measure sE-Selectin in cell culture supernates, serum, and plasma. It contains CHO cell-expressed recombinant human sE-Selectin and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human sE-Selectin 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 sE-Selectin.
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 sE-Selectin
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, Citrate Plasma, Heparin Plasma, Serum
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 40 | 40 | 40 |
| Mean (ng/mL) | 1.6 | 2.9 | 4.7 | 1.5 | 2.9 | 4.6 |
| Standard Deviation | 0.11 | 0.17 | 0.24 | 0.11 | 0.25 | 0.35 |
| CV% | 6.6 | 5.7 | 5.2 | 7.3 | 8.7 | 7.7 |
Recovery for Human sE-Selectin/CD62E Quantikine ELISA Kit
The recovery of sE-Selectin spiked to levels throughout the range of the assay in various matrices was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=4) | 103 | 98-110 |
| Citrate Plasma (n=4) | 96 | 85-107 |
| Heparin Plasma (n=4) | 94 | 85-107 |
| Serum (n=4) | 96 | 85-106 |
Linearity
To assess the linearity of the assay, samples containing and/or spiked with high concentrations of sE-Selectin were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Scientific Data Images for Human sE-Selectin/CD62E Quantikine ELISA Kit
Human E-Selectin/CD62E 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: E-Selectin/CD62E
Alternate Names
CD62E, ELAM1, LECAM2, SELE
Gene Symbol
SELE
Additional E-Selectin/CD62E Products
Product Documents for Human sE-Selectin/CD62E 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 sE-Selectin/CD62E 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.Citations for Human sE-Selectin/CD62E Quantikine ELISA Kit
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Sample Tested: SerumVerified Customer | Posted 09/13/2020
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Protocols
View specific protocols for Human sE-Selectin/CD62E Quantikine ELISA Kit (DSLE00):
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 100 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.
- 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.
- Aspirate and wash 4 times.
- Add 200 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes. 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
100 µL Standard, Control, or Sample
200 µL Conjugate
200 µL Substrate Solution
50 µL Stop Solution
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