Figure 3

Atomic fluctuation (Y-axis in Angstrom) for all backbone atoms in the different simulated complexes, each represented with a different color-coding (see first inset). The X-axis represents amino acid numbers, with the different secondary structure segments involved in the structural transitions (H11, H11’, H12, co-activator) marked in different colors (the color correspondence can be seen in the second inset). Values obtained from averaging over four independent 0.5μs trajectories for each system along with standard deviation value. The plot excluded the highly mobile part contributed from the loop residue 508 to 514 linking H12 to co-activator and C-terminal residues.