Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1364573 | Bioorganic & Medicinal Chemistry Letters | 2008 | 4 Pages |
Abstract
Low-temperature NMR experiments and molecular modeling have been used to characterize the conformational behavior of a covalently cross-linked DNA base pair model. The data suggest that Watson–Crick or reverse Watson–Crick hydrogen bonding geometries have similar energies and can interconvert at low temperatures. This low-temperature process involves rotation about the crosslink CH2C(5′) (ψ) carbon–carbon bond, which is energetically preferred over the alternate CH2N(3) (φ) carbon–nitrogen bond rotation.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Erik A. Jensen, Benjamin D. Allen, Yoshito Kishi, Daniel J. O’Leary,