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  • Title: A conformational study of nucleic acid phosphate ester bonds using phosphorus-31 nuclear magnetic resonance.
    Author: Haasnoot CA, Altona C.
    Journal: Nucleic Acids Res; 1979 Mar; 6(3):1135-49. PubMed ID: 440971.
    Abstract:
    A systematic phosphorus-31 nuclear magnetic resonance study of some nucleic acid constituents (6-N-(dimethyl)adenylyl-(3',5')-uridine and some nucleotide methyl esters) is presented. The temperature dependent phosphorus-31 chemical shifts were analyzed by standard thermodynamic procedures. It is shown that gt conformations about the P-O ester bonds have a lower free energy content relative to gg conformers.
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