SCF (Stem cell factor), also known as c-kit ligand (KL), mast cell growth factor (MGF), and steel factor (SLF) promotes the survival, differentiation, and mobilization of multiple cell types including myeloid, erythroid, megakaryocytic, lymphoid, germ cell, and melanocyte progenitors. SCF is a primary growth and activation factor for mast cells and eosinophils. SCF is expressed as a transmembrane, but a soluble form can be released by proteolytic shedding. Noncovalent dimers of transmembrane or soluble SCF interact with the receptor tyrosine kinase SCF R/c-kit to trigger receptor dimerization and signaling. SCF assists in the recovery of cardiac function following myocardial infarction by increasing the number of cardiomyocytes and vascular channels.
Human SCF Quantikine ELISA Kit
R&D Systems | Catalog # DCK00
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Key Product Details
Assay Length
4.5 hours
Sample Type & Volume Required Per Well
Cell Culture Supernates (100 µL), Serum (100 µL), EDTA Plasma (100 µL), Heparin Plasma (100 µL), Citrate Plasma (100 µL)
Sensitivity
9 pg/mL
Assay Range
31.2-2000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Citrate Plasma)
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Product Summary for Human SCF Quantikine ELISA Kit
The Quantikine Human SCF Immunoassay is a 4.5 hour solid phase ELISA designed to measure SCF levels in cell culture supernates, serum, and plasma. It contains E. coli-expressed recombinant human soluble SCF (KL-1 variant) and antibodies raised against this recombinant factor. Results obtained for naturally occurring human SCF samples 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 natural human SCF.
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 SCF. This assay cross-reacts 15.6% with Canine SCF, 16.1% with Feline SCF, 3.5% with Mouse SCF and 1.0% with Rat SCF.
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules. Cross-species reactivity observed with 1 or more 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
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (pg/mL) | 153 | 709 | 1427 | 151 | 729 | 1552 |
| Standard Deviation | 3.6 | 11.6 | 61.0 | 12.1 | 45.8 | 125 |
| CV% | 2.4 | 1.6 | 4.3 | 8.0 | 6.3 | 8.1 |
Citrate Plasma, EDTA Plasma, Heparin Plasma, Serum
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (pg/mL) | 139 | 655 | 1419 | 142 | 703 | 1574 |
| Standard Deviation | 5.5 | 12.9 | 54.0 | 14.6 | 36.0 | 94.0 |
| CV% | 4.0 | 2.0 | 3.8 | 10.3 | 5.1 | 6.0 |
Recovery for Human SCF Quantikine ELISA Kit
The recovery of SCF spiked to levels throughout the range of the assay in various matrices was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=2) | 85 | 75-93 |
| Citrate Plasma (n=8) | 94 | 84-112 |
| EDTA Plasma (n=8) | 98 | 82-110 |
| Heparin Plasma (n=8) | 99 | 88-116 |
| Serum (n=8) | 99 | 87-111 |
Linearity
To assess the linearity of the assay, the following biological samples were diluted with the appropriate Calibrator Diluent and then assayed. The cell culture media was spiked with exogenous SCF.
Scientific Data Images for Human SCF Quantikine ELISA Kit
Human SCF/c-kit Ligand ELISA Cell Culture Supernate Standard Curve
Human SCF/c-kit Ligand ELISA Serum/Plasma 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: SCF/c-kit Ligand
Long Name
Stem Cell Factor
Alternate Names
c-kit Ligand, DCUA, DFNA69, FPH2, FPHH, KITLG, KL-1, MGF, SHEP7, SLF
Gene Symbol
KITLG
Additional SCF/c-kit Ligand Products
Product Documents for Human SCF 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 SCF 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
Citations for Human SCF Quantikine ELISA Kit
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Protocols
View specific protocols for Human SCF Quantikine ELISA Kit (DCK00):
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 twice for a total of 3 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 3 times.
- Add 200 µL Substrate Solution to each well. Incubate at room temperature for 20 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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