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Phosphorylation of the cap-binding protein eIF4E by the MAPK-activated protein kinase Mnk1
1Department of Biochemistry, McGill University, Montreal, Quebec, Canada. Pyronnet@med.mcgill.ca
Biochemical Pharmacology
|September 29, 2000
Abstract:
The purpose of this review is to summarize recent experimental data describing the regulation of the phosphorylation of eIF4E, the cap-binding protein, by the MAPK-activated protein kinase Mnk1. Mnk1 does not interact directly with eIF4E, but uses a docking site in eIF4G, a partner of eIF4E. Consequently, control of eIF4E phosphorylation may not strictly depend on changes in Mnk1 activity. The possibility that integrity of the eIF4E/eIF4G/Mnk1 complex also impinges upon eIF4E phosphorylation is discussed.