| Field | Specification |
|---|---|
| Target | |
| Alternative names | Interleukin 6 ;Interleukin 6, isoform CRA_b ;IL6 ;mCG_11634 ; |
| Gene ID | |
| UniProt # | |
| Reactivity | |
| Applications | |
| Immunogen | Expression system for standard: E.coli; Immunogen sequence: F25-T211 |
| Expression system | |
| Expression region | |
| Assay type | |
| Sample type(s) | Cell Culture Supernatant, Serum, Plasma |
| Sensitivity | |
| Detection range | |
| Assay time | |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Assay Principle
This sandwich ELISA quantifies mouse interleukin-6 (gene Il6) in cell culture supernatants, serum and plasma (heparin, EDTA, citrate). Strips are pre-coated with a capture antibody. After the sample is added, a biotinylated detection antibody binds the captured protein, and an avidin–biotin–peroxidase complex supplies the enzyme. TMB develops color in proportion to the bound target; the reaction is stopped and read at 450 nm, and concentrations are read from the standard curve.
Interleukin-6 (IL-6) is a multifunctional cytokine released by macrophages, dendritic cells and many other cells during infection and tissue injury. It binds IL-6R and then the signaling subunit gp130, activating JAK–STAT3 through classic or trans-signaling. IL-6 drives the acute phase response, B-cell differentiation and Th17 development, and it is one of the most widely measured inflammatory markers.
Kit Components
| Anti-Mouse IL6 Pre-coated 96-well strip microplate | 1 plate (96 wells) |
|---|---|
| Mouse IL6 Standard | 2 vials, 10 ng/tube |
| Mouse IL6 Biotinylated antibody (100x) | 100 µL |
| Avidin-Biotin-Peroxidase Complex (100x) | 100 µL |
| Sample Diluent | 30 mL |
| Antibody Diluent | 12 mL |
| Avidin-Biotin-Peroxidase Diluent | 12 mL |
| Color Developing Reagent (TMB) | 10 mL |
| Stop Solution | 10 mL |
| Wash Buffer (25x) | 20 mL |
| Adhesive plate sealers | 4 |
Also required (not supplied): microplate reader for 450 nm; incubator; automated plate washer (optional); precision pipettes for 0.5 µL through 1 mL volumes of aqueous solutions; multichannel pipettes (recommended for many samples); deionized or distilled water; 500 mL graduated cylinders; test tubes for dilution.
Kit components are not sold separately.
Performance Data
| Species | Mouse |
|---|---|
| Sample types | Cell culture supernatants, serum and plasma (heparin, EDTA, citrate) |
| Assay range | 15.6 pg/mL–1,000 pg/mL |
| Sensitivity | <1 pg/mL |
| Standard | Recombinant mouse Il6 (Phe25–Thr211), expressed in E. coli |
| Cross-reactivity | None detected against related proteins in supplier testing |
| Intra-assay CV | 4.9–7.2% (3 samples, n = 16 each) |
| Inter-assay CV | 5.4–8.4% (3 samples, n = 24 each) |
| Format | 96 wells, removable strips |
Sample dilution: start at 1:1. In the supplier’s tests, serum and plasma samples measured below the lowest standard.
Example standard curve (OD450, pg/mL): 0 = 0.083; 15.6 = 0.144; 31.2 = 0.212; 62.5 = 0.337; 125 = 0.577; 250 = 0.972; 500 = 1.545; 1000 = 2.333. Run a new standard curve on every plate.
Storage & Handling
Store at 4 °C for up to 6 months or −20 °C for up to 12 months. Avoid repeated freeze–thaw cycles. Ships on gel ice and tolerates up to 3 days at room temperature; freeze on arrival.
Safety
Sample data
| Concentration (pg/ml) | 0 | 15.6 | 31.2 | 62.5 | 125 | 250 | 500 | 1000 |
| O.D. | 0.083 | 0.144 | 0.212 | 0.337 | 0.577 | 0.972 | 1.545 | 2.333 |
Intra/inter assay consistency
| Intra-Assay Precision | Inter-Assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 16 | 16 | 16 | 24 | 24 | 24 |
| Mean (pg/ml) | 36 | 159 | 436 | 36 | 147 | 482 |
| Standard deviation | 2.41 | 7.79 | 34.94 | 2.91 | 7.93 | 40.48 |
| CV (%) | 6.7% | 4.9% | 7.2% | 8.1% | 5.4% | 8.4% |
Kit components
Description|Quantity Pre-coated 96-well strip microplate|1 Standard|2 vials Biotinylated antibody (100x)|100ul Avidin-Biotin-Peroxidase Complex (100x)|100ul Sample Diluent|30ml Antibody Diluent|12ml Avidin-Biotin-Peroxidase Diluent|12ml Color Developing Reagent (TMB)|10ml Stop Solution|10ml Wash Buffer (25x)|20ml Adhesive plate sealers|4Materials required but not provided
- Microplate Reader capable of reading absorbance at 450nm.
- Incubator.
- Automated plate washer (optional).
- Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
- Multichannel pipettes are recommended for large amount of samples.
- Deionized or distilled water.
- 500ml graduated cylinders.
- Test tubes for dilution.
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