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Nucleic Acid Substrates: Investigation Of Structural And Dynamic Features That Influence Enzyme Activity, Christopher N. Johnson
Nucleic Acid Substrates: Investigation Of Structural And Dynamic Features That Influence Enzyme Activity, Christopher N. Johnson
Chemistry Dissertations
The previous view of DNA as a linear sequence of bases is evolving to consider structure, topology and dynamics. Sequences surrounding damage lesions have been shown to effect enzyme recognition and processing. Here we present an in depth investigation of subtle structural and dynamical features imparted to nucleic acid duplexes by a designed modification or damage lesions. Highly restrained solution structures were generated and validated utilizing a range of NMR techniques. This allowed for the characterization of multiple features of the nucleic acid duplex; such as base pairing, backbone torsion angles, deoxyribose sugar pucker, and intra and inter nucleotide proton …