Topography of nucleic acid helices in solutons. A nuclear magnetic resonance study of the interactions of reporter molecules with deoxyribonucleic acid. Evidence for hydrogen-bonding interactions

Abstract

The ¹H n.m.r. signals of the methyl protons of tertiary ammonium salts' complexes with DNA are considerably more broadened than those of the corresponding quaternary ammonium salts, and strongly suggestive of H-bonding interactions of DNA with the tertiary ammonium salts (1), (3), and (5).