title: 15NH4+ ion movement inside d(G4T4G4)2 G-quadruplex is accelerated in the presence of smaller Na+ ions.
abstract: 2D NMR studies demonstrate that the residence lifetime of 15NH4+ ions within the bimolecular G-quadruplex adopted by d(G4T4G4) is reduced from 270 ms in the presence of ammonium ions alone to 36 ms in the presence of Na+ ions.
authors.affiliation: NMR center, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia.
authors.forename: Primoz
authors.initials: P
authors.lastname: Sket
authors.forename: Martin
authors.initials: M
authors.lastname: Crnugelj
authors.forename: Wiktor
authors.initials: W
authors.lastname: Kozminski
authors.forename: Janez
authors.initials: J
authors.lastname: Plavec