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. Author manuscript; available in PMC: 2023 Jul 1.
Published in final edited form as: Adv Drug Deliv Rev. 2022 May 5;186:114316. doi: 10.1016/j.addr.2022.114316

Fig. 1.

Fig. 1.

RNA hierarchical structure and dynamics. (A) Secondary and (B) tertiary structures of tRNA (Lys, 3). Reprinted with permission from [51]. Copyright 2010 Molcular Diversity Preservation International; (C) Quaternary structure of phi29 pRNA hexamer. Adapted with permission from [57]. Copyright 2021 American Chemical Society; (D) Three tiers of RNA dynamics in hierarchical free-energy landscape. Adapted with permission from [14]. Copyright 2019 Springer Nature Limited.