Product nameAnti-IL-33 antibody
See all IL-33 primary antibodies
DescriptionRabbit polyclonal to IL-33
Tested applicationsSuitable for: WBmore details
Species reactivityReacts with: Human
Predicted to work with: Orangutan
Synthetic peptide corresponding to Human IL-33 aa 50-150 conjugated to keyhole limpet haemocyanin.
(Peptide available as
- This antibody gave a positive signal in Human lymph node tissue lysate.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
Storage bufferPreservative: 0.02% Sodium Azide
Constituents: 1% BSA, PBS, pH 7.4
Concentration information loading...
PurityImmunogen affinity purified
Our Abpromise guarantee covers the use of ab90078 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||Use a concentration of 1 µg/ml. Detects a band of approximately 26 kDa (predicted molecular weight: 30 kDa).|
FunctionCytokine 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 specificityExpressed at high level in high endothelial venules found in tonsils, Peyer patches and mesenteric lymph nodes. Almost undetectable in placenta.
Sequence similaritiesBelongs to the IL-1 family. Highly divergent.
DomainThe homeodomain-like HTH domain mediates nuclear localization and heterochromatin association.
modificationsThe 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 localizationNucleus. Chromosome. Cytoplasmic vesicle, secretory vesicle. Secreted. Associates with heterochromatin and mitotic chromosomes (PubMed:17185418).
- Information by UniProt
- C9orf26 antibody
- CHROMOSOME 9 OPEN READING FRAME 26 antibody
- DKFZp586H0523 antibody
Anti-IL-33 antibody (ab90078) at 1 µg/ml + Human lymph node tissue lysate - total protein (ab29871) at 10 µg
Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 30 kDa
Observed band size: 26 kDa why is the actual band size different from the predicted?
Additional bands at: 55 kDa, 72 kDa. We are unsure as to the identity of these extra bands.
Exposure time: 20 minutes
The predicted molecular weight of IL33 is 30 kDa (SwissProt), however we expect to observe a band at 26 kDa. Abcam welcomes customer feedback and would appreciate any comments regarding this product and the data presented above.
ab90078 has not yet been referenced specifically in any publications.