Eukaryotic translation initiation factor 4B (EIF4B)

Required for the binding of mRNA to ribosomes. Functions in close association with EIF4-F and EIF4-A.

Binds close to the 5'- terminal cap of mRNA in existence of EIF-4F and ATP. Promotes the ATPase activity as well as the ATP-dependent RNA unwinding activity of both EIF4-A and EIF4-F.