title: Mechanism of UV-induced formation of Dewar lesions in DNA.
abstract: The importance of a backbone: The mechanism of formation of Dewar lesions has been investigated by using femtosecond IR spectroscopy and ab initio calculations of the exited state. The 4π electrocyclization is rather slow, occurs with an unusual high quantum yield, and--surprisingly--is controlled by the phosphate backbone.
authors: Faculty of Physics, Center for Integrative Protein Science, Ludwig Maximilians University Munich, Oettingenstrasse 67, 80538 Munich, Germany.
authors: Karin
authors: K
authors: Haiser
authors: Benjamin P
authors: BP
authors: Fingerhut
authors: Korbinian
authors: K
authors: Heil
authors: Andreas
authors: A
authors: Glas
authors: Teja T
authors: TT
authors: Herzog
authors: Bert M
authors: BM
authors: Pilles
authors: Wolfgang J
authors: WJ
authors: Schreier
authors: Wolfgang
authors: W
authors: Zinth
authors: Regina
authors: R
authors: de Vivie-Riedle
authors: Thomas
authors: T
authors: Carell
mesh_terms: D003500:Cyclization; D004247:DNA / Q000737:chemistry / Q000235:genetics*; D004249:DNA Damage / Q000528:radiation effects*; D007536:Isomerism; D009690:Nucleic Acid Conformation; D010710:Phosphates / Q000737:chemistry; D011789:Quantum Theory; D013055:Spectrophotometry, Infrared; D014466:Ultraviolet Rays
chemical_list: D010710:Phosphates; D004247:DNA