Fig. 4.
HX of some small domain peptides in apo (A and C) and ADP-bound (B and D) Hsp104, placed before and after the MD. E360R placed in the small domain greatly destabilizes the small subdomain, promotes its dynamics, and indirectly destabilizes the neighboring M domain (Fig. 3), which facilitates ADP escape. The other mutants have much smaller effects on this region.