Definition: A series of reactions initiated by the activation of the transcription factor NF-kappaB. NF-kappaB is sequestered by the inhibitor I-kappaB, and is released when I-kappaB is phosphorylated by activated I-kappaB kinase. [GOC:jl, PMID:12773372][...]
Synonyms: I-kappaB kinase/NF-kappaB cascade • NIK-I-kappaB/NF-kappaB cascade