Hydrogen bonds lengths in nucleic acids estimated from longitudinal nitrogen-15 relaxation

J Magn Reson. 2003 Nov;165(1):1-8. doi: 10.1016/s1090-7807(03)00271-4.

Abstract

A new NMR method has been designed for the measurement of the longitudinal relaxation rates of both donor and acceptor nitrogen-15 nuclei in Watson-Crick base pairs in 15N-enriched nucleic acids. The experiment was applied to a 22-nucleotide RNA hairpin. The lengths of four hydrogen bonds could be estimated from the longitudinal relaxation rates.

Publication types

  • Comparative Study
  • Evaluation Study
  • Research Support, Non-U.S. Gov't
  • Validation Study

MeSH terms

  • Algorithms*
  • Base Pairing*
  • Crystallography / methods*
  • Hydrogen / chemistry*
  • Hydrogen Bonding
  • Magnetic Resonance Spectroscopy / methods*
  • Models, Chemical
  • Nitrogen Isotopes
  • Nucleic Acid Conformation*
  • Nucleic Acids / chemistry
  • Polynucleotides / chemistry
  • RNA / chemistry*

Substances

  • Nitrogen Isotopes
  • Nucleic Acids
  • Polynucleotides
  • RNA
  • Hydrogen