Figure 7.
The PMF curves for (a) asparagine side chain-adenine base, (b) asparagine side chain-cytosine base, (c) asparagine side chain-guanine base, and (d) asparagine side chain-thymine base. The blue cross and red circle symbols correspond to PMFs determined from the MD simulations for the side-to-side (Figure 13.a) and the head-to-head (Figure 13.b) orientations, respectively. The blue and red solid lines correspond to the analytical approximation (Eq. 18) to the PMFs for the side-to-side and the head-to-head orientations, with parameters determined by least-squares fitting of the analytical expression to the PMF determined by the MD simulations.