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MAP Kinase Signaling System - Physiology
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Definition of 'MAP Kinase Signaling System'

An intracellular signaling system involving the MAP kinase cascades (three-membered protein kinase cascades). Various upstream activators, which act in response to extracellular stimuli, trigger the cascades by activating the first member of a cascade, MAP KINASE KINASE KINASES; (MAPKKKs). Activated MAPKKKs phosphorylate MITOGEN-ACTIVATED PROTEIN KINASE KINASES which in turn phosphorylate the MITOGEN-ACTIVATED PROTEIN KINASES; (MAPKs). The MAPKs then act on various downstream targets to affect gene expression. In mammals, there are several distinct MAP kinase pathways including the ERK (extracellular signal-regulated kinase) pathway, the SAPK/JNK (stress-activated protein kinase/c-jun kinase) pathway, and the p38 kinase pathway. There is some sharing of components among the pathways depending on which stimulus originates activation of the cascade.

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Saturday, November 21, 2009

Nemo-like kinase induces apoptosis and inhibits androgen receptor signaling in prostate cancer cells.

29 Sep 2009 BACKGROUND: The mitogen-activated protein kinases (MAPKs) regulate cell growth, differentiation, and stress responses, and many critical signaling pathways are subject to cross-regulation by MAPK signaling. Previous studies have yielded evidence of ... Read more...


Altered distribution and function of A2A adenosine receptors in the brain of WAG/Rij rats with genetic absence epilepsy, before and after appearance of the disease.

30 Aug 2009 The involvement of excitatory adenosine A(2A) receptors (A(2A)Rs), which probably contribute to the pathophysiology of convulsive seizures, has never been investigated in absence epilepsy. Here, we examined the distribution and function of A(2A)Rs ... Read more...


p75 neurotrophin receptor is implicated in the ability of neurotrophin-3 to negatively modulate activated ERK1/2 signaling in TrkA-expressing adult sensory neurons.

30 Aug 2009 Neurotrophin-3 (NT-3) can negatively modulate trkA and associated phenotype in intact sensory neurons, while positively regulating trkC and associated phenotype. How NT-3 effects this response is not clear. Whether NT-3 exerts a differential ... Read more...

 

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Technical information about 'MAP Kinase Signaling System'

Definition: An intracellular signaling system involving the MAP kinase cascades (three-membered protein kinase cascades). Various upstream activators, which act in response to extracellular stimuli, trigger the cascades by activating the first member of a cascade, MAP KINASE KINASE KINASES; (MAPKKKs). Activated MAPKKKs phosphorylate MITOGEN-ACTIVATED PROTEIN KINASE KINASES which in turn phosphorylate the MITOGEN-ACTIVATED PROTEIN KINASES; (MAPKs). The MAPKs then act on various downstream targets to affect gene expression. In mammals, there are several distinct MAP kinase pathways including the ERK (extracellular signal-regulated kinase) pathway, the SAPK/JNK (stress-activated protein kinase/c-jun kinase) pathway, and the p38 kinase pathway. There is some sharing of components among the pathways depending on which stimulus originates activation of the cascade.

Descriptor UI: D020935

Alternative terms: MAP Kinase Signaling System; MAP Kinase Signaling Pathways; MAP Kinase Cascade; Cascade, MAP Kinase; Cascades, MAP Kinase; Kinase Cascade, MAP; Kinase Cascades, MAP; MAP Kinase Cascades; MAP Kinase Modules; Kinase Module, MAP; Kinase Modules, MAP; MAP Kinase Module; Module, MAP Kinase; Modules, MAP Kinase; MAP Kinase Signaling Cascades;

Related Mesh Headings: Mitogen-Activated Protein Kinases; Mitogen-Activated Protein Kinase Kinases; MAP Kinase Kinase Kinases;

Allowable Qualifiers: drug effects; genetics; immunology; physiology; radiation effects; ethics;

Tree Number: G02.111.087.800.560; G02.149.115.800.560; G03.495.553.560; G04.299.880.560;

History Note: 2000

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