eIF4F is a multi-subunit complex, the composition of which varies with external and internal environmental conditions. It is composed of at least EIF4A, EIF4E and EIF4G1/EIF4G3. EIF4E is also known to interact with other partners. The interaction with EIF4ENIF1 mediates the import into the nucleus. Nonphosphorylated EIF4EBP1, EIF4EBP2 and EIF4EBP3 compete with EIF4G1/EIF4G3 to interact with EIF4E; insulin stimulated MAP-kinase (MAPK1 and MAPK3) phosphorylation of EIF4EBP1 causes dissociation of the complex allowing EIF4G1/EIF4G3 to bind and consequent initiation of translation. Rapamycin can attenuate insulin stimulation, mediated by FKBPs. this gene also interacts mutually exclusive with EIF4A1 and EIF4A2.
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Protein Aliases: eIF-4E; eIF-4F 25 kDa subunit; eIF4E; Eukaryotic translation initiation factor 4E; eukaryotic translation initiation factor 4E-like 1; mRNA cap-binding protein
Gene Aliases: AUTS19; CBP; EG668879; eIF-4E; EIF4E; Eif4e-ps; EIF4E1; EIF4EL1; EIF4F; If4e