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IRAK4

This gene encodes a kinase that activates NF-kappaB in both the Toll-like receptor (TLR) and T-cell receptor (TCR) signaling pathways. The protein is essential for most innate immune responses. Mutations in this gene result in IRAK4 deficiency and recurrent invasive pneumococcal disease. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]
Protein class

Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Plasma proteins, Potential drug targets

Predicted location

Intracellular

Single cell type specificity

Low cell type specificity

Immune cell specificity

Low immune cell specificity

Cell line specificity

Cell line enhanced (U-937)

Interaction

Associates with MYD88 and IRAK2 to form a ternary complex called the Myddosome (PubMed:16951688, PubMed:24316379). Once phosphorylated, IRAK4 dissociates from the receptor complex and then associates with the TNF receptor-associated factor 6 (TRAF6), IRAK1, and PELI1; this intermediate complex is required for subsequent NF-kappa-B activation (PubMed:11960013, PubMed:12496252, PubMed:16951688). Direct binding of SMAD6 to PELI1 prevents complex formation and hence negatively regulates IL1R-TLR signaling and eventually NF-kappa-B-mediated gene expression (PubMed:16951688). Interacts with IL1RL1 (PubMed:16286016). Interacts (when phosphorylated) with IRAK1 (PubMed:33238146). May interact (when phosphorylated) with IRAK3 (PubMed:33238146).

Molecular function

Kinase, Serine/threonine-protein kinase, Transferase

More Types Infomation

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For Research Use Only. Not For Clinical Use.

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