https://www.selleckchem.com/pr....oducts/rimiducid-ap1
An analytical model for the free energy change during collapse of an RNA molecule from an extended to a compact conformation is proposed. It considers explicit binding of water and ion molecules to the RNA and the exchange of these molecules with the aqueous solution. Microscopic states of the system are captured on a two-dimensional square lattice and evaluated using contact energies. We compute the free energy as a function of a collapse variable and the number of ions bound to the RNA. The major driving force to the collapse
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