Article
Phosphorylation of NF-kappaB1/p105 by oncoprotein kinase Tpl2: implications for a novel mechanism of Tpl2 regulation.
Biochimica et biophysica acta - 1 Feb 2006
Babu Geetha R, Jin Wei, Norman Lourdes, Waterfield Michael, Chang Mikyoung, Wu Xuefeng, Zhang Minying, Sun Shao-Cong
Abstract excerpt
The oncoprotein kinase Tpl2 plays an essential role in macrophage activation by the bacterial component lipopolysaccharide (LPS). In response to LPS stimulation, Tpl2 phosphorylates a downstream kinase, MEK1, leading to the activation of ERK signaling pathway. Recent studies demonstrate that the NF-kappaB1 precursor protein p105 functions as an inhibitor of Tpl2 and that the LPS-stimulated Tpl2 activation...
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