Apoptosis signal–regulating kinase 1 (ASK1) is an upstream activator of JNK and p38 MAPK signaling cascades. Evidence now shows that the ASK1-interacting protein, AIP1, plays an important role in TNF-α–induced ASK1 activation by facilitating dissociation from its inhibitor.
M. Eugenia Guicciardi, Gregory J. Gores
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