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| Feature | Specification |
|---|---|
| Application | タンパク質定量 |
| Dynamic Range | 6.2 - 100,000 pg/mL |
| Limit of Detection | 6.2 pg/mL |
| Sample Volume | 5 µL |
Formats:
Features:
The rat interleukin 1 beta (IL1ß) is produced as a 269 amino acid precursor that matures by proteolysis to its 152 amino acid active form. In humans, IL1a and IL1ß are central players of the immune response, displaying roles in inflammation both at local and systemic levels. IL1ß is functionally equivalent to IL1a. Its production has been reported in many cell types including brain cells, as well as monocytic and peripheral blood mononuclear cells. Among the biological activities of IL1 is the stimulation of T-helper cells, which then secrete IL2 and express IL2 receptor. IL1 acts directly on B-cells, promoting their proliferation and the synthesis of immunoglobulins. It supports tumor cytotoxicity mediated by monocytes and induces tumor regression. It has been shown that IL1 also promotes wound healing.
AlphaLISA technology allows the detection of molecules of interest in a no-wash, highly sensitive, quantitative assay. In an AlphaLISA assay, a biotinylated anti-analyte antibody binds to the Streptavidin-coated Donor beads while another anti-analyte antibody is conjugated to AlphaLISA Acceptor beads. In the presence of the analyte, the beads come into close proximity. The excitation of the Donor beads causes the release of singlet oxygen molecules that triggers a cascade of energy transfer in the Acceptor beads, resulting in a sharp peak of light emission at 615 nm.
The AlphaLISA assay is based on an AlphaLISA sandwich immunoassay involving a biotinylated anti-analyte antibody bound to Streptavidin-coated AlphaLISA Donor beads and an anti-analyte antibody conjugated to AlphaLISA Acceptor beads. Both antibodies are directed against the analyte of interest. In the presence of the target, both antibodies bind to analyte and the beads come into proximity. The excitation of the Donor beads provokes the release of singlet oxygen molecules that triggers a cascade of energy transfer within the Acceptor beads, resulting in emission with λmax at 615 nm. The intensity of the signal is directly proportional to the concentration of analyte present in the sample.
The AlphaLISA assay can be run in a 96- or 384-well detection plate (50 µL final). As described here, samples or standards are dispensed directly into the assay plate for the detection of the analyte of interest by AlphaLISA reagents. No washing steps are needed. The protocol can be further miniaturized or upscaled by simply resizing each addition volume proportionally.
| Application |
Protein Quantification
|
|---|---|
| Automation Compatible |
Yes
|
| Brand |
AlphaLISA
|
| Detection Modality |
Alpha
|
| Dynamic Range |
6.2 - 100,000 pg/mL
|
| Limit of Detection |
6.2 pg/mL
|
| Product Group |
Kit
|
| Sample Volume |
5 µL
|
| Shipping Conditions |
Shipped in Blue Ice
|
| Target |
IL1β
|
| Target Class |
Cytokines
|
| Target Species |
Rat
|
| Technology |
Alpha
|
| Therapeutic Area |
Inflammation
|
| Unit Size |
500 assay points
|
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This flyer details HTRF™ and AlphaLISA™ assays for investigating key biomarkers and signaling pathways in metabolic disease...
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