Article
Mapping of the inducible IkappaB phosphorylation sites that signal its ubiquitination and degradation.
Molecular and cellular biology - 1 Apr 1996
DiDonato J, Mercurio F, Rosette C, Wu-Li J, Suyang H, Ghosh S, Karin M
Abstract excerpt
Extracellular stimuli that activate the transcription factor NF-kappaB cause rapid phosphorylation of the IkappaBalpha inhibitor, which retains NF-kappaB in the cytoplasm of nonstimulated cells. Phosphorylation of IkappaBalpha is followed by its rapid degradation, the inhibition of which prevents NF-kappaB activation. To determine the relationship between these events, we mapped the inducible phosphorylation...
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