Human IL-6R alpha Quantikine ELISA Kit Best Seller
R&D Systems, part of Bio-Techne | Catalog # DR600
Key Product Details
Assay Length
4.5 hours
Sample Type & Volume Required Per Well
Cell Culture Supernates (100 µL), Serum (10 µL), EDTA Plasma (10 µL), Heparin Plasma (10 µL), Citrate Plasma (10 µL), Urine (50 µL)
Sensitivity
15.1 pg/mL
Assay Range
31.2-2000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Citrate Plasma, Urine)
Product Summary for Human IL-6R alpha Quantikine ELISA Kit
The Quantikine Human IL-6 sR Immunoassay is a 4.5 hour solid phase ELISA designed to measure human IL-6 sR in cell culture supernates, serum, plasma, and urine. It contains recombinant human IL-6 sR produced in Sf 21 cells and antibodies raised against this protein. This kit has been shown to accurately quantitate the recombinant soluble IL-6 R. Results obtained using natural IL-6 sR 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 IL-6 sR. Since the measurement of human IL-6 sR by this immunoassay is insensitive to added recombinant human IL-6, it is probable that this measurement corresponds to the total amount of the soluble receptor present in samples ( i.e. the total amount of free receptor plus the total amount of receptor bound to IL-6).
Product Specifications
Assay Type
Solid Phase Sandwich ELISA
Format
96-well strip plate
Measurement
Quantitative ELISA
Detection Method
Colorimetric - 450nm (TMB)
Conjugate
HRP
Reactivity
Human
Specificity
Natural and recombinant human IL-6 sR
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules. Cross-species reactivity not 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, EDTA Plasma, Heparin Plasma, 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) | 134 | 644 | 1669 | 130 | 645 | 1593 |
| Standard Deviation | 11.5 | 16.8 | 38.3 | 8.3 | 26.9 | 75.4 |
| CV% | 8.6 | 2.6 | 2.3 | 6.4 | 4.2 | 4.7 |
Recovery for Human IL-6R alpha Quantikine ELISA Kit
The recovery of IL-6 sR spiked to three levels throughout the range of the assay in various matrices was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=4) | 93 | 85-97 |
| Citrate Plasma (n=4) | 93 | 86-102 |
| EDTA Plasma (n=4) | 93 | 76-107 |
| Heparin Plasma (n=4) | 101 | 87-118 |
| Serum (n=4) | 93 | 86-110 |
| Urine (n=4) | 86 | 64-98 |
Linearity
To assess the linearity of the assay, samples containing or spiked with high concentrations of natural or recombinant human IL-6 sR were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the as
Scientific Data Images for Human IL-6R alpha Quantikine ELISA Kit
Human IL-6 R alpha 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: IL-6R alpha
IL-6R alpha is a transmembrane subunit of the receptor for Interleukin-6. It associates with gp130 which is a shared component of the receptors for CLC, CNTF, CT-1, IL-11, IL-27, LIF, and OSM. Soluble forms of IL-6R alpha are generated by both alternative splicing and proteolytic cleavage. In a mechanism known as trans-signaling, complexes of soluble IL-6 and IL-6R alpha elicit responses from gp130-expressing cells that lack cell surface IL-6R alpha. IL-6 plays important roles in the acute phase reaction, inflammation, hematopoiesis, bone metabolism, and cancer progression. IL-6, along with TNF-alpha and IL-1, drives the acute inflammatory response and the transition from acute inflammation to either acquired immunity or chronic inflammatory disease. When dysregulated, it contributes to chronic inflammation in obesity, insulin resistance, inflammatory bowel disease, arthritis, sepsis, and atherosclerosis.
Long Name
Interleukin 6 Receptor alpha
Alternate Names
CD126, IL-6 R alpha, IL-6Ra, IL6R, IL6R alpha
Gene Symbol
IL6R
Additional IL-6R alpha Products
Product Documents for Human IL-6R alpha Quantikine ELISA Kit
Product Specific Notices for Human IL-6R alpha Quantikine ELISA Kit
For research use only
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⚠ 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.