Summary
Precision
Recovery
Linearity
Data Examples
Product Datasheets
Preparation and Storage
Background
Related Research Areas
Human XCL1/Lymphotactin Quantikine ELISA Kit Summary
Assay Type
Solid Phase Sandwich ELISA
Format
96-well strip plate
Assay Length
4.5 hours
Sample Type & Volume Required Per Well
Cell Culture Supernates (100 uL), Serum (100 uL), EDTA Plasma (100 uL), Heparin Plasma (100 uL)
Sensitivity
0.023 ng/mL
Assay Range
0.2 - 10 ng/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
Specificity
Natural and recombinant human Lymphotactin. This assay also recognizes human XCL2.
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.
Product Summary
The Quantikine Human XCL1/Lymphotactin Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human Lymphotactin in cell culture supernates, serum, and plasma. It contains E. coli-expressed recombinant human Lymphotactin and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human Lymphotactin 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 Lymphotactin.
Precision
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in twenty separate assays to assess inter-assay precision. Assays were performed by at least three technicians using two lots of components
Cell Culture Supernates
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (ng/mL) | 0.92 | 2.83 | 5.57 | 1.01 | 3.08 | 6.29 |
| Standard Deviation | 0.024 | 0.078 | 0.116 | 0.095 | 0.278 | 0.494 |
| CV% | 2.6 | 2.8 | 2.1 | 9.4 | 9 | 7.9 |
Serum, EDTA Plasma, Heparin Plasma
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (ng/mL) | 1.12 | 3.27 | 6.66 | 1.14 | 3.32 | 6.69 |
| Standard Deviation | 0.031 | 0.085 | 0.184 | 0.084 | 0.199 | 0.374 |
| CV% | 2.8 | 2.6 | 2.8 | 7.4 | 6 | 5.6 |
Recovery
The recovery of human Lymphotactin spiked to levels throughout the range of the assay in various matrices was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=4) | 109 | 99-116 |
| EDTA Plasma (n=4) | 95 | 86-100 |
| Heparin Plasma (n=4) | 93 | 87-101 |
| Serum (n=4) | 98 | 89-107 |
Linearity
To assess the linearity of the assay, samples spiked with high concentrations of human Lymphotactin were diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Scientific Data
Product Datasheets
Preparation and Storage
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: XCL1/Lymphotactin
Lymphotactin (Lptn), also known as SCM-1a and ATAC, belongs to the C or gamma subfamily of chemokines and has been designated XCL1. Human Lymphotactin encodes a 114 amino acid (aa) precursor with a 21 aa predicted signal peptide. The gene for lymphotactin has been mapped to chromosome 1 in both human and mouse.
Long Name:
Chemokine [C Motif] Ligand 1
Entrez Gene IDs:
6375 (Human); 16963 (Mouse)
Alternate Names:
ATAC; ATACSmall-inducible cytokine C1; C motif chemokine 1; chemokine (C motif) ligand 1; Cytokine SCM-1; LPTNSCM-1-alpha; LTNXC chemokine ligand 1; Lymphotactin; lymphotaxin; SCM-1 alpha; SCM-1; SCM1A; SCM-1a; SCYC1SCM1; single cysteine motif 1a; small inducible cytokine subfamily C, member 1 (lymphotactin); XCL1
⚠ 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.
Assay Procedure
Refer to the product 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 3 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 1 hour 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
100 µL Standard, Control, or Sample
200 µL Conjugate
200 µL Substrate Solution
50 µL Stop Solution
FAQs
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