Nucleic Acids Research, 1979, Vol. 6, No. 3 1135-1149
© 1979
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A conformational study of nucleic acid phosphate ester bonds using phosphorus-31 nuclear magnetic resonance1
Gorlaeus Laboratories, State University P.O. Box 9502, 2300 RA Leiden, Netherlands
Received November 20, 1978. 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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