(A-B) Interactions between loop L4 and linker MP in AG04 (A) and Siwi (B) (PDB ID: 5GUH). The van der Waals surfaces are
shown as dots.
(C-D) Interactions of loops L31 and L32 in AG04 (C) and Siwi (D). The AGO-specific insert (yellow)
makes space for four water molecules (LAKE2).
(E) Model of the water-mediated RISC assembly and disassembly (see the main text for details). The MD simulation predicts
that mature RISC exchanges water molecules in LAKEs with the solvent (blue arrows). The water-mediated RISC disassembly is
hypothetical based on our and previous studies.