Mitogen Activated Protein (MAP) kinase kinase kinase (MAPKKK, [1] MKKK, [2] M3K, [3] or, MAP3K[4]) is a serine/threonine-specific protein kinase which acts upon MAP kinase kinase. Subsequently, MAP kinase kinase activates MAP kinase. Several types of MAPKKK can exist but are mainly characterized by the MAP kinases they activate.

2005年6月1日 · Scaffolding proteins organize MKK–MAPK complexes for activation by specific MKKKs and do so in specific locations in the cell. It is the MKKK associated with the scaffolded complex that provides selectivity for activation by upstream stimuli including GTPases, additional kinases and receptors.

Mitogen-activated protein kinase kinase kinase kinase (MAP4K) is a family of proteins involved in cellular signal transduction. Some signal transduction pathways. MAP4K is not labelled. MAPK …

Scaffolding proteins organize MKK-MAPK complexes for activation by specific MKKKs and do so in specific locations in the cell. It is the MKKK associated with the scaffolded complex that provides selectivity for activation by upstream stimuli …

1999年4月1日 · MKKs are characteristically dual specificity kinases which catalyze the phosphorylation of MAPKs on both tyrosine and threonine residues. The MKKs are themselves phosphorylated and activated by serine/threonine kinases that function as MKK kinases (MKKKs).

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MAPK modules are composed of a cascade of three intracellular protein kinases (MKKK, MKK and MAPK) which are activated successively by phosphorylation events. They are used to transduce a variety of information in organisms as diverse as yeasts, worms, flies or mammals.

2007年5月14日 · In this review, we describe how the MKKK ‘hub’ function regulates the specificity of MAPK activation, highlighting MKKKs as targets for therapeutic intervention in cancer and other diseases....

signaling hubs’ that regulate the specificity of MAPK activation. In this review, we describe how the MKKK ‘hub’ function regulates the specificity of MAPK activation, highlighting MKKKs.

Mitogen-activated protein kinase (MAPK) signaling networks represent important means of signal transduction in plants and other eukaryotes, controlling intracellular signaling by linking perception of environmental or developmental cues to downstream targets.