Article
Role of phosphatidic acid in the coupling of the ERK cascade.
The Journal of biological chemistry - 26 Dec 2008
Kraft Catherine A, Garrido José Luis, Fluharty Eric, Leiva-Vega Luis, Romero Guillermo
Abstract excerpt
The production of phosphatidic acid plays a crucial role in the activation of the ERK cascade. This role was linked to the binding of phosphatidate to a specific polybasic site within the kinase domain of Raf-1. Here we show that phosphatidate promotes ERK phosphorylation in intact cells but does not activate Raf in vitro. The kinase suppressor of Ras (KSR) contains a sequence homologous to the phosphatidate...
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