IL33 binds IL1RL1

Stable Identifier
Reaction [binding]
Homo sapiens
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Interleukin-1 receptor-like 1 (IL1RL1, ST2), known for many years to be an orphan receptor within the IL1 receptor family, can bind Interleukin-33 (IL33) (Schmitz et al. 2005). The functional IL33 receptor is a heteromeric receptor complex consisting of IL1RL1 and Interleukin-1 receptor accessory protein (IL1RAP1) (Chackerian et al. 2007, Lingel et al. 2009). IL33 is found constitutively in the nucleus of endothelial cells where it can bind histone H2A-H2B (Roussel et al. 2008) leading to poorly understood intracrine gene regulatory functions (Carriere et al. 2007, Martin et al. 2013). It can be passively released from damaged cells, hence it has been termed an alarmin or damage-associated molecular pattern (DAMP), though IL33 is also released by undamaged cells (Lefrancais & Cayrol 2012).

Literature References
PubMed ID Title Journal Year
16286016 IL-33, an interleukin-1-like cytokine that signals via the IL-1 receptor-related protein ST2 and induces T helper type 2-associated cytokines

Li, X, Gorman, DM, Owyang, A, Murphy, E, Schmitz, J, Qin, J, Kastelein, RA, Zurawski, G, Moshrefi, M, Bazan, JF, Song, Y, Oldham, E, McClanahan, TK

Immunity 2005
This event is regulated
Orthologous Events
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