| Application | Recommended Dilution |
|---|---|
| FC | 1:50-1:200 |
Interleukin-33 serves as a critical alarmin cytokine that orchestrates immune responses at barrier surfaces, playing essential roles in type 2 immunity, tissue repair, and inflammatory disease pathogenesis. As a member of the IL-1 family, IL-33 is released from damaged epithelial and endothelial cells to activate innate lymphoid cells, mast cells, and T helper 2 cells through its receptor ST2. The protein exists in multiple biologically active forms, including cleaved variants spanning residues 102-266 and 109-266, making reliable detection crucial for understanding its complex processing and signaling dynamics.
This recombinant monoclonal antibody, clone 2D3, offers researchers the consistency and reproducibility that recombinant technology provides. Because the antibody sequence is defined and produced in a controlled expression system, you can expect uniform performance across experiments and between lot numbers, eliminating the variability that can complicate longitudinal studies or multi-site collaborations. Affinity chromatography purification ensures high purity for demanding applications.
Validation in flow cytometry demonstrates effective intracellular detection of IL-33 in HT29 human colorectal adenocarcinoma cells, with clear signal separation from isotype control when used at 1:100 dilution following fixation and permeabilization. This human cell line validation supports the antibody's utility for studying IL-33 expression in epithelial contexts. The antibody is also validated for ELISA applications, with recommended flow cytometry dilutions ranging from 1:50 to 1:200 depending on your experimental system.
This antibody supports investigations into allergic inflammation, asthma, inflammatory bowel disease, and tissue damage responses where IL-33 signaling drives pathological or protective outcomes.
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