Local RNA Structure, Ion Hydration Shell and the Energy Barrier for Water Exchange from the Ion Hydration Shell Determine the Mechanism of Ion Condensation on Specific RNA Sites
Abstract:RNA folding and functioning require the binding of metal ions in specific cavities of the folded structure. This property is critical to the functioning of riboswitches that especially regulate the metal ions concentration in bacteria. However, the fundamental principles governing the specific binding of metal ions in RNA are unclear. We probed the condensation mechanism of biologically relevant alkali (Na+ and K+), alkaline earth (Mg2+ and Ca2+), and transition metals (Mn2+, Co2+, Ni2+ and Zn2+) on a part of … Show more
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