Abstract
Eukaryotic initiation factor 4E (eIF4E) has long been known as the cap-binding protein that participates in recruitment of mRNA to the ribosome. A number of recent advances have not only increased our understanding of how eIF4E acts in translation but also uncovered non-translational roles. New structures have been determined for eIF4E in complex with various ligands and for other cap-binding proteins. We have also learned that most eukaryotic organisms express multiple eIF4E family members, some involved in general translation but others having specialized functions, including repression of translation. A number of new eIF4E-binding proteins have been reported, some of which tether it to specific mRNAs.
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