Interleukin-18/Interleukin-18 receptor 1 (IL18:IL18R1) complex binds Interleukin-18 receptor accessory protein (IL18RAP, IL18 receptor beta chain), forming a high-affinity signaling complex (Born et al. 1998, Debets et al. 2001). This IL18RAP subunit seems to be necessary for the signal transduction (Kim et al. 2001).
Bird, TA, Born, TL, Thomassen, E, Sims, JE
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