SK48-E26
SK48-E26 is a human interleukin-1β (IL-1β) inhibitor, with a IC50 of 400 pM against human IL-1β, a IC50 of 185 pM against cynomolgus monkey IL-1β, and a Ka value ranging from 0.048 nM to 3 nM for human IL-1β. SK48-E26 binds to the conformational epitope of human IL-1β spanning amino acid residues 95-101, and blocks the biological activity of IL-1β. SK48-E26 can be used in research related to IL-1β-mediated inflammatory diseases and osteoarthritis.
For research use only. We do not sell to patients.
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
Species Reactivity
Human
In Vitro
SK48-E26 effectively captures human recombinant IL-1β in an ELISA format, enabling detection of hrIL-1β at concentrations as low as 0.1 to 0.2 ng/mL with a linear response to IL-1β concentration[1].
SK48-E26 specifically neutralizes human recombinant IL-1β activity in an EL-4 cell-based bioassay, binds a conformational epitope on hrIL-1β spanning amino acids 95-101, and has an affinity for IL-1β of 0.5 to 3 nM[1].
Mutations in the heavy chain CDR3 region of SK48-E26 Fab fragments increase affinity for human recombinant IL-1β, with the V120T/R121K mutant showing a 9.79-fold improvement over the wild-type SK48-E26 Fab[1].
SK48-E26 (10-200 nM) binds to human IL-1β with an equilibrium dissociation constant of 242 pM[2].
SK48-E26 (1×10-15-1×10-7 M; 1 h pre-incubation with IL-1β, 16-20 h incubation with cells) neutralizes human IL-1β with an IC50 of 400 pM and cynomolgus IL-1β with an IC50 of 185 pM in MRC-5 cells[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
Gene ID
Accession
Target
IL-1b
Conjugated
Unconjugated
Reconsititution
The product can be reconstituted/diluted with sterile PBS or saline.
Format
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Product Image
Application
ELISA, FACS, Functional assay
Chemical Information
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SMILES
[SK48-E26]
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Formulation
Please refer to the lot-specific COA for specific buffer information.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocols
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Cell Cytotoxicity Assay
Cytotoxicity assays are usually based on the assessment of cell membrane damage, which can also be indirectly detected by measuring cell viability. Detection methods include MTT assay, CKK-8 assay, LDH assay and ATP assay, etc.
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Pyroptosis Solutions
Pyroptosis is a lytic inflammatory cell-death pathway executed by gasdermin pores, most classically through inflammasome-mediated activation of caspase-1, cleavage of gasdermin D, membrane pore formation, LDH release, and secretion of IL-1β and IL-18. The canonical pathway is commonly modeled by priming cells with an inflammatory signal such as LPS to induce pro-IL-1β and inflammasome components, followed by an activation signal such as ATP or nigericin to activate NLRP3, ASC speck formation, caspase-1 cleavage, GSDMD cleavage, cytokine release, and pyroptotic membrane rupture. The non-canonical pathway is triggered when cytosolic LPS activates mouse caspase-11 or human caspase-4/5, leading to GSDMD cleavage and pyroptosis, and this can secondarily activate NLRP3-dependent IL-1β release. Pyroptosis is linked to inflammatory injury, infection, cancer, liver disease, ocular disease, placental inflammation, and other disease phenotypes, but unresolved questions include which gasdermin fam
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)