Reference : Infrared Signature of DNA G-Quadruplexes in the Gas Phase
Scientific journals : Short communication
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/385
Infrared Signature of DNA G-Quadruplexes in the Gas Phase
English
Gabelica, Valérie mailto [Université de Liège - ULg > > Chimie physique, spectrométrie de masse >]
Rosu, Frédéric [Université de Liège - ULg > > Chimie physique, spectrométrie de masse >]
De Pauw, Edwin mailto [Université de Liège - ULg > > Chimie physique, spectrométrie de masse >]
Lemaire, Joël [UniVersité Paris Sud, F-91405 Orsay, France > > Laboratoire de Chimie Physiques - CLIO du CNRS > >]
Gillet, Jean-Christophe [Univ. Paris 13 > > Laboratoire de Physique des Lasers du CNRS > >]
Poully, Jean-Christophe [Univ. Paris 13 > > Laboratoire de Physique des Lasers du CNRS > >]
Lecomte, Frédéric [Univ. Paris 13 > > Laboratoire de Physique des Lasers du CNRS > >]
Grégoire, Gilles [Univ. Paris 13 > > Laboratoire de Physique des Lasers du CNRS > >]
Schermann, Jean-Pierre [Univ. Paris 13 > > Laboratoire de Physique des Lasers du CNRS > >]
Desfrançois, Charles [Univ. Paris 13 > > Laboratoire de Physique des Lasers du CNRS > >]
2008
Journal of the American Chemical Society
American Chemical Society
130
6
1810-1
Yes (verified by ORBi)
International
0002-7863
1520-5126
Washington
DC
[en] infrared ; spectroscopy ; mass spectrometry ; G-quadruplex ; structure ; conformation ; DNA
[en] DNA oligonucleotide ions forming G-quadruplex structures were studied in the gas phase using IRMPD spectroscopy. Data interpretation on these large biomolecule ions was made using carefully chosen control experiments. The major finding is a fingerprint of hydrogen bonding in the gas phase in the guanine C6=O6 stretching mode, that allows probing the conservation of G-quartets in the gas phase. The experiments demonstrate the conservation of G-quadruplex hydrogen bonds in the human telomeric sequence d(TTAGGG)4.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers
http://hdl.handle.net/2268/385
10.1021/ja077321w

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