Human IL-33 Propeptide Antibody Summary
Met1-Ser111
Accession # O95760
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Scientific Data
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Detection of Human IL‑33 Propeptide by Western Blot. Western blot shows lysates of Jurkat human acute T cell leukemia cell line, Raji human Burkitt's lymphoma cell line, and K562 human chronic myelogenous leukemia cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human IL-33 Propeptide Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4810) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for IL-33 Propeptide at approximately 31 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.
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IL‑33 in HUVEC Human Cells. IL-33 was detected in immersion fixed HUVEC human umbilical vein endothelial cells using Goat Anti-Human IL-33 Propeptide Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4810) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the Northern-Lights™ 557-conjugated Anti-Goat IgG Secondary Antibody (yellow; Catalog # NL001) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: IL-33
IL-33 (interleukin 33; also NF-HEV and IL-1F11) is a 31-32 kDa member of the IL-1 family of proteins. It is expressed in endothelial cells and reportedly has two functions; first, it induces Th2-type cytokines, and second, it acts as a nuclear transcription factor. Human IL-33 is 270 amino acids (aa) in length. It contains a putative proregion (aa 1-111) and a mature segment (aa 112-270). The proregion contains a bipartite NLS (aa 61-78), plus an alpha -helical homeodomain-like HTH motif (aa 1-65). The HTH motif mediates nuclear localization and heterochromatin association. A potential caspase 1 cleavage site exists in human IL-33 (Ser111-Ser112), but not in IL-33 from canine, porcine or bovine. There is one splice variant that shows a deletion of aa 113-118. Over aa 1-111, human IL-33 propeptide is 45% aa identical to mouse IL-33 propeptide.
Product Datasheets
Citation for Human IL-33 Propeptide Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
1 Citation: Showing 1 - 1
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Activator protein transcription factors coordinate human IL-33 expression from noncanonical promoters in chronic airway disease
Authors: Raphael, HE;Hassan, GF;Osorio, OA;Cohen, LS;Payne, MD;Katz-Kiriakos, E;Tata, I;Hicks, J;Byers, DE;Zhang, B;Alexander-Brett, J;
JCI insight
Species: Human
Sample Types: Cell Lysates
Applications: Western Blot
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