Interleukin 18 receptor accessory protein, also known as?IL18RAP?and?CDw218b?(cluster of differentiationw218b), is a human?gene. The protein encoded by this gene is an accessory subunit of the heterodimeric receptor for IL18. This protein enhances the IL18 binding activity of IL18R1 (IL1RRP), a ligand binding subunit of IL18 receptor. The coexpression of IL18R1 and this protein is required for the activation of NF-B and MAPK8 (JNK) in response to IL18.
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