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IL1RAP

Interleukin 1 induces synthesis of acute phase and proinflammatory proteins during infection, tissue damage, or stress, by forming a complex at the cell membrane with an interleukin 1 receptor and an accessory protein. This gene encodes the interleukin 1 receptor accessory protein. The protein is a necessary part of the interleukin 1 receptor complex which initiates signalling events that result in the activation of interleukin 1-responsive genes. Alternative splicing of this gene results in two transcript variants encoding two different isoforms, one membrane-bound and one soluble. The ratio of soluble to membrane-bound forms increases during acute-phase induction or stress.
Protein class

Enzymes, Plasma proteins

Predicted location

Intracellular, Membrane, Secreted (different isoforms)

Single cell type specificity

Cell type enhanced (Oligodendrocyte precursor cells, Hepatocytes, Extravillous trophoblasts)

Immune cell specificity

Group enriched (neutrophil, eosinophil)

Cell line specificity

Cell line enriched (SK-MEL-30)

Interaction

The interleukin-36 receptor complex is a heterodimer of IL1RL2 and IL1RAP; the association is inhibited by IL36RN (By similarity). The interleukin-1 receptor complex is a heterodimer of IL1R1 and IL1RAP. Associates with IL1R2 to form a non-signaling interleukin-1 receptor complex. Isoform 4 interacts with IL1R1 in an interleukin-1-dependent manner. Interacts with IL-33-bound IL1RL1 to form the minimal interleukin-33 signaling complex with a 1:1:1 stoichiometry. Interacts with KIT (independently of stimulation with KITLG/SCF). A mast cell-specific KITLG/SCF-induced interleukin-33 signaling complex contains IL1RL1, IL1RAP, KIT and MYD88 (By similarity). Interacts (via the first immunoglobilin domain) with PTPRD (via the third immunoglobilin domain); induces pre- and postsynaptic differentiation of neurons (By similarity).

Molecular function

Hydrolase, Receptor

More Types Infomation

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For Research Use Only. Not For Clinical Use.

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