Hydrogen bonding in duplex DNA probed by DNP enhanced solid-state NMR N-H bond length measurements
Hydrogen bonding in duplex DNA probed by DNP enhanced solid-state NMR N-H bond length measurements
Numerous biological processes and mechanisms depend on details of base pairing and hydrogen bonding in DNA. Hydrogen bonds are challenging to quantify by X-ray crystallography and cryo-EM due to difficulty of visualizing hydrogen atom locations but can be probed with site specificity by NMR spectroscopy in solution and the solid state with the latter particularly suited to large, slowly tumbling DNA complexes. Recently, we showed that low-temperature dynamic nuclear polarization (DNP) enhanced... More... |
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