Before revision:  Two important conclusions were made: (i) the computed bending and twisting rigidities of DNA agree well with experimental data , and (ii) for lengths of a few helical turns, DNA dynamics exhibits long-range correlations in qualitative difference from the worm-like rod (WLR) model. Earlier similar studies showed that (i) the current MD forcefields systematically overestimate the DNA rigidity, and (ii) MD trajectories of DNA involve only short-range correlations;
After revision:  Two important conclusions were made: (i) the computed bending and twisting rigidities of DNA agree well with experimental data , and (ii) for lengths of a few helical turns, DNA dynamics exhibits long-range bending and stretching correlations. Earlier studies using similar forcefields concluded that (i) the current MD forcefields systematically overestimate the DNA rigidity, and (ii) MD trajectories of DNA involve only short-range correlations;