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Energy landscape of RNA exemplified by tP5abc.15, 16, 17 Motions correspond to reorientation of bonds and molecular tumbling on ps–ns scale, base‐flipping on μs–ms scale and large structural reorientations, such as (re‐)folding on s scale. Several NMR methods access motions ranging from timescales of ps to days. RNA structures are reprinted with permission from refs. 15 and 16.
