Figure 7.
The side chain Ile78 reoriented upon binding of toluene to T4 lysozyme L99A. (a) In the bound state the Ile78 side chain occupied one rotamer state (blue sticks), while the side chain showed partial occupancy of two rotamers (blue and green sticks) in the unbound state. (b) The ξ1 dihedral angle of Ile78 as a function of simulation time in the simulation of the interacting (state A, blue) and the noninteracting state (state B, green) and its distribution. The non-interacting state had to be sampled long enough to observe multiple transitions between the rotamers.