The structure of Watson-Crick guanine-cytosine (GC), adenine-thymine (AT), and adenine-uracil (AU) base pair.
Representation of conformational space for the six-membered ring.
The population distribution of puckering degree (S) of pyrimidine rings in isolated and paired states. The dotted line is used to clarify the threshold value for a ring being planar (S ⩽ 0.1) or non-planar (S > 0.1) conformer.
The population distribution of displacement of the exocyclic and endocyclic atoms of nucleic acid base pairs.
Population of different conformations of pyrimidine rings in nucleic pairs in gas phase.
Population of different conformations of imidazole rings in nucleic base pairs in gas phase.
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