JNK1 physically interacts with transactivation domain of TAp63γ.
Overexpression of JNK1 inhibits TAp63γ transactivity.
Ser12 in TAp63γ is critical for JNK1-mediated trans-inhibition.
Inhibition or knockdown of JNK1 increases TAp63γ transactivity.
JNK1 inhibits TAp63γ-mediated cell apoptosis.