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IL-33 Rabbit anti-Human, Mouse, Polyclonal, Invitrogen

Rabbit Polyclonal Antibody

Manufacturer:  Invitrogen PA520398

Catalog No. PIPA520398


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Description

Description

The PA5-20398 immunogen is located within the 150-200 amino acids of IL-33. Predicted molecular ~ 31kD. In Western blot applications, this antibody has been observed to detect a band at: 33kD. Despite its predicted molecular weight, IL-33 often migrates at a higher molecular weight in SDS-PAGE. A suggested positive control is human lymph node tissue lysate. PA5-20398 can be used with blocking peptide PEP-0515. Predicted species reactivity based on immunogen sequence: Rat: (76.5%)

IL-33 (Interleukin-33) is a 270 amino acid, highly divergent protein belonging to the IL-1 family with an IL-1-like C-terminal domain. IL-33 is a dual function protein that may function both as a proinflammatory cytokine and an intracellular nuclear factor with transcriptional regulatory properties. IL-33 binds to and signals through IL1RL1/ST2 and its stimulation recruits MYD88, IRAK1, IRAK4, and TRAF6. IL-33 activates NF-kappaB and MAP kinases, and drives production of TH2-associated cytokines from in vitro polarized TH2 cells. In vivo, IL-33 induces the expression of IL-4, IL-5, and IL-13 and leads to severe pathological changes in mucosal organs. IL-33 is proteolytically converted to a mature form by CASP1 and is highly expressed in high endothelial venules found in tonsils, Peyer ft.s patches and mesenteric lymph nodes and is almost undetectable in placenta. Prolonged IL-33 treatment of mice led to the development of eosinophilia, splenomegaly, and severe pathological changes in mucosal organs such as lungs, esophagus and small intestine. Recent experiments have shown that IL-33 can also co-localize with heterochromatin and possesses transcriptional repressor activities, indicating that IL-33 may function as both a proinflammatory cytokine and an intracellular nuclear factor with transcriptional regulatory properties. Despite its predicted molecular weight, IL-33 will often run at higher molecular weight in SDS-PAGE. Studies have shown that IL-33 can also co-localize with heterochromatin and possesses transcriptional repressor activities, indicating that IL-33 may function as both a proinflammatory cytokine, and an intracellular nuclear factor with transcriptional regulatory properties.
Specifications

Specifications

IL-33
Polyclonal
Unconjugated
IL33
Liquid
Rabbit
IgG
100 μg
Maintain refrigerated at 2-8°C for up to 3 months. For long term storage store at -20°C
Primary
77125, 90865
Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Immunohistochemistry (Paraffin), Western Blot
1 mg/mL
PBS with 0.02% sodium azide
Q8BVZ5, O95760
IL33
A peptide from near the center of human IL-33
Antigen affinity chromatography
RUO
Antibody
Polyclonal
Human, Mouse, Rat
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