Overview
Product name
Human IL-1 beta ELISA KitSee all IL-1 beta kitsDetection method
ColorimetricPrecision
Intra-assay Sample n Mean SD CV% Overall 8 4.8% Inter-assay Sample n Mean SD CV% Overall 3 5.6% Sample type
Cell culture supernatant, Serum, Hep Plasma, EDTA Plasma, Cit plasmaAssay type
Sandwich (quantitative)Sensitivity
5.64 pg/mlRange
14.06 pg/ml -900 pg/mlRecovery
Sample specific recovery Sample type Average % Range Cell culture supernatant 98 96%- 100% Serum 103 101%- 105% Hep Plasma 100 99%- 101% EDTA Plasma 93 90%- 96% Cit plasma 86 84%- 88% Assay time
2h30mAssay duration
One step assaySpecies reactivity
Reacts with:HumanDoes not react with:CowProduct overview
Human IL-1 beta (Interleukin 1 beta) ELISA kit is a single-wash sandwich ELISA designed for the quantitative measurement of IL-1 beta protein in human serum, plasma, and cell culture supernatants.It uses our proprietary SimpleStep ELISA® technology. Quantitatehuman IL-1 beta with 5.64 pg/ml sensitivity.
SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:
- Single-wash protocol reduces assay time to 90 minutes or less- High sensitivity, specificity and reproducibility from superior antibodies- Fully validated in biological samples- 96-wells plate breakable into 12 x 8 wells strips
A 384-well SimpleStep ELISA® microplate (ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.
ASSAY SPECIFICITY
This kit recognizes both native and recombinant human IL-1beta protein in serum, plasma, and cell culture supernatant samples only.
Cell and tissue extract samples have not been tested with this kit.
CROSS REACTIVITY
Recombinant mouse IL-1beta and human IL-1 receptor antagonist were prepared at 50 ng/mL and 225 pg/mL and assayed for cross reactivity. No cross-reactivity was observed.
INTERFERENCE
Recombinant human Interleukin-1 receptor type 1 was prepared at 50 ng/mL and 225 pg/mL and tested for interference. No interference with was observed.
SPECIES REACTIVITY
This kit recognizes human IL-1beta protein.
Other species reactivity was determined by measuring serum samples of various species, interpolating the IL-1beta protein concentrations from the human standard curve, and expressing the interpolated concentrations as a percentage of the IL-1beta protein concentration in human serum assayed at the same dilution.
Reactivity < 3%="" was="" determined="" for="" the="" following="" species:="" mouse,="" rat,="">
Other species reactivity not determined.
Notes
Interleukin 1 beta (IL-1 beta) is produced by activated macrophages and stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation, and fibroblast growth factor activity. IL-1 proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells.
Platform
Pre-coated microplate (12 x 8 well strips)
Properties
Storage instructions
Store at +4°C. Please refer to protocols.Components 1 x 96 tests 10X Human IL-1beta Capture Antibody 1 x 600µl 10X Human IL-1beta Detector Antibody 1 x 600µl 10X Wash Buffer PT (ab206977) 1 x 20ml Antibody Diluent 4BI 1 x 6ml Human IL-1beta Lyophilized Recombinant Protein (ab9617) 2 vials Plate Seals 1 unit Sample Diluent NS (ab193972) 1 x 50ml SimpleStep Pre-Coated 96-Well Microplate (ab206978) 1 unit Stop Solution 1 x 12ml TMBDevelopment Solution 1 x 12ml Research areas
- Immunology
- Innate Immunity
- Cytokines
- Interleukins
- Cardiovascular
- Atherosclerosis
- Vascular Inflammation
- Inflammatory mediators
- Metabolism
- Types of disease
- Obesity
Function
Potent proinflammatory cytokine. Initially discovered as the major endogenous pyrogen, induces prostaglandin synthesis, neutrophil influx and activation, T-cell activation and cytokine production, B-cell activation and antibody production, and fibroblast proliferation and collagen production. Promotes Th17 differentiation of T-cells.Tissue specificity
Expressed in activated monocytes/macrophages (at protein level).Sequence similarities
Belongs to the IL-1 family.Post-translationalmodifications
Activation of the IL1B precursor involves a CASP1-catalyzed proteolytic cleavage. Processing and secretion are temporarily associated.Cellular localization
Cytoplasm, cytosol. Lysosome. Secreted, exosome. Cytoplasmic vesicle, autophagosome. Secreted. The precursor is cytosolic. In response to inflammasome-activating signals, such as ATP for NLRP3 inflammasome or bacterial flagellin for NLRC4 inflammasome, cleaved and secreted. IL1B lacks any known signal sequence and the pathway(s) of its secretion is(are) not yet fully understood (PubMed:24201029). On the basis of experimental results, several unconventional secretion mechanisms have been proposed. 1. Secretion via secretory lysosomes: a fraction of CASP1 and IL1B precursor may be incorporated, by a yet undefined mechanism, into secretory lysosomes that undergo Ca(2+)-dependent exocytosis with release of mature IL1B (PubMed:15192144). 2. Secretory autophagy: IL1B-containing autophagosomes may fuse with endosomes or multivesicular bodies (MVBs) and then merge with the plasma membrane releasing soluble IL1B or IL1B-containing exosomes (PubMed:24201029). However, autophagy impacts IL1B production at several levels and its role in secretion is still controversial. 3. Secretion via exosomes: ATP-activation of P2RX7 leads to the formation of MVBs containing exosomes with entrapped IL1B, CASP1 and other inflammasome components. These MVBs undergo exocytosis with the release of exosomes. The release of soluble IL1B occurs after the lysis of exosome membranes (By similarity). 4. Secretion by microvesicle shedding: activation of the ATP receptor P2RX7 may induce an immediate shedding of membrane-derived microvesicles containing IL1B and possibly inflammasome components. The cytokine is then released in the extracellular compartment after microvesicle lysis (PubMed:11728343). 5. Release by translocation through permeabilized plasma membrane. This may occur in cells undergoing pyroptosis due to sustained activation of the inflammasome (By similarity). These mechanisms may not be not mutually exclusive.- Information by UniProt
Alternative names
- Catabolin
- H1
- IFN beta inducing factor
see allDatabase links
- Entrez Gene:3553 Human
- Omim:147720 Human
- SwissProt:P01584 Human
- Unigene:126256 Human
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