Compares RNA force fields and water models, suggesting enhanced reliability in structural simulations.
We compare the performance of two different RNA force fields in four water models in simulating the conformational ensembles r(GACC) and r(CCCC). With the increased sampling facilitated by multidimensional replica exchange molecular dynamics (M-REMD), populations are compared to NMR data to evaluate force field reliability. The combination of AMBER ff12 with vdW(bb) modifications and the OPC water model produces results in quantitative agreement with the NMR ensemble that have eluded us to date.
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Bergonzo et al. (2015) studied this question.
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