Figure 2.

Mutually exclusive binding of PABP and eIF4B to eIFiso4G and eIF4G in plants. For eIFiso4F: (A) binding of PABP or (B) binding of eIF4B is depicted. For eIF4F: (A) binding of PABP to both PABP binding sites, (B) binding of eIF4B to both eIF4B binding sites, (C) binding of eIF4B and PABP to the N- and C-terminal binding sites, respectively, or (D) binding of PABP and eIF4B to the N- and C-terminal binding sites, respectively, is depicted. eIF4B is shown interacting with eIF4A (indicated with bars) but whether eIF4B can bind eIF4A when bound to eIFiso4G or eIF4G is unknown.