Interleukin-1 receptor-associated kinase 1 (IPR035536)

Short name: IRAK1

Overlapping homologous superfamilies

Family relationships



Interleukin-1 receptor-associated kinases (IRAKs) are essential components of innate immunity and inflammation in mammals and other vertebrates. They are involved in signal transduction pathways involving IL-1 and IL-18 receptors, Toll-like receptors, nuclear factor-kappaB (NF-kB), and mitogen-activated protein kinases (MAPKs). IRAKs contain an N-terminal death domain (DD) and a C-terminal kinase domain [PMID: 12620219, PMID: 16212909, PMID: 17172653, PMID: 18249132].

IRAK1 is an active kinase and also plays adaptor functions. It binds to the MyD88-IRAK4 complex via its DD, which facilitates its phosphorylation by IRAK4, activating it for further auto-phosphorylation [PMID: 17276401]. Hyper-phosphorylated IRAK1 forms a cytosolic complex with TRAF6, leading to the activation of NF-kB and MAPK pathways. IRAK1 is involved in autoimmunity and may be associated with lupus pathogenesis [PMID: 17890055].

GO terms

Biological Process

GO:0070498 interleukin-1-mediated signaling pathway

Molecular Function

GO:0004674 protein serine/threonine kinase activity

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.