Article
Rap1 couples cAMP signaling to a distinct pool of p42/44MAPK regulating excitability, synaptic plasticity, learning, and memory.
Neuron - 17 Jul 2003
Morozov Alexei, Muzzio Isabel A, Bourtchouladze Rusiko, Van-Strien Niels, Lapidus Kyle, Yin DeQi, Winder Danny G, Adams J Paige, Sweatt J David, Kandel Eric R
Abstract excerpt
Learning-induced synaptic plasticity commonly involves the interaction between cAMP and p42/44MAPK. To investigate the role of Rap1 as a potential signaling molecule coupling cAMP and p42/44MAPK, we expressed an interfering Rap1 mutant (iRap1) in the mouse forebrain. This expression selectively decreased basal phosphorylation of a membrane-associated pool of p42/44MAPK, impaired cAMP-dependent LTP in the...
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