Overview

  • Product name
  • Description
    Rabbit polyclonal to IL33
  • Tested applications
    Suitable for: IHC-P, WBmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Synthetic peptide corresponding to a region within N terminal amino acids 36 - 85 (AKEVCPMYFM KLRSGLMIKK EACYFRRETT KRPSLKTGRK HKRHLVLAAC) of Human IL33 (NP_254274)

  • Positive control
    • 293T cell lysate

Properties

Applications

Our Abpromise guarantee covers the use of ab83873 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P Use a concentration of 4 - 8 µg/ml.
WB Use a concentration of 1 mg/ml. Predicted molecular weight: 31 kDa. Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.

Target

  • Function
    Cytokine that binds to and signals through the IL1RL1/ST2 receptor which in turn activates NF-kappa-B and MAPK signaling pathways in target cells (PubMed:16286016). Involved in the maturation of Th2 cells inducing the secretion of T-helper type 2-associated cytokines. Also involved in activation of mast cells, basophils, eosinophils and natural killer cells. Acts as a chemoattractant for Th2 cells, and may function as an "alarmin", that amplifies immune responses during tissue injury (PubMed:17853410, PubMed:18836528).
    In quiescent endothelia the uncleaved form is constitutively and abundantly expressed, and acts as a chromatin-associated nuclear factor with transcriptional repressor properties, it may sequester nuclear NF-kappaB/RELA, lowering expression of its targets (PubMed:21734074). This form is rapidely lost upon angiogenic or proinflammatory activation (PubMed:18787100).
  • Tissue specificity
    Expressed at high level in high endothelial venules found in tonsils, Peyer patches and mesenteric lymph nodes. Almost undetectable in placenta.
  • Sequence similarities
    Belongs to the IL-1 family. Highly divergent.
  • Domain
    The homeodomain-like HTH domain mediates nuclear localization and heterochromatin association.
  • Post-translational
    modifications
    The full length protein can be released from cells and is able to signal via the IL1RL1/ST2 receptor. However, proteolytic processing by CSTG/cathepsin G and ELANE/neutrophil elastase produces C-terminal peptides that are more active than the unprocessed full length protein. May also be proteolytically processed by calpains (PubMed:19596270). Proteolytic cleavage mediated by apoptotic caspases including CASP3 and CASP7 results in IL33 inactivation (PubMed:19559631). In vitro proteolytic cleavage by CASP1 was reported (PubMed:16286016) but could not be confirmed in vivo (PubMed:19465481) suggesting that IL33 is probably not a direct substrate for that caspase.
  • Cellular localization
    Nucleus. Chromosome. Cytoplasmic vesicle, secretory vesicle. Secreted. Associates with heterochromatin and mitotic chromosomes (PubMed:17185418).
  • Information by UniProt
  • Database links
  • Alternative names
    • C9orf26 antibody
    • CHROMOSOME 9 OPEN READING FRAME 26 antibody
    • DKFZp586H0523 antibody
    • DVS27 antibody
    • DVS27 related protein antibody
    • IL 1F11 antibody
    • IL 33 antibody
    • IL-1F11 antibody
    • IL-33 antibody
    • IL1F11 antibody
    • IL33 antibody
    • IL33_HUMAN antibody
    • Interleukin 1 family member 11 antibody
    • Interleukin 33 antibody
    • INTERLEUKIN 33 NFHEV antibody
    • Interleukin 33 precursor antibody
    • Interleukin-1 family member 11 antibody
    • Interleukin-33 (109-270) antibody
    • Interleukin33 antibody
    • NF HEV antibody
    • NF-HEV antibody
    • NFEHEV antibody
    • NFHEV antibody
    • Nuclear factor for high endothelial venules antibody
    • Nuclear factor from high endothelial venules antibody
    • OTTHUMP00000021041 antibody
    • RP11 575C20.2 antibody
    see all

Images

  • Anti-IL33 antibody (ab83873) at 1 µg/ml + 293T cell lysate at 10 µg

    Secondary
    HRP conjugated anti-Rabbit IgG at 1/50000 dilution

    Predicted band size : 31 kDa
    Observed band size : 26 kDa (why is the actual band size different from the predicted?)
    Gel concentration 12%
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human skin tissue labelling IL33 with ab83873 at 4-8µg/ml.

References

ab83873 has not yet been referenced specifically in any publications.

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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"

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