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The Excited‐State Lifetimes in a G⋅C DNA Duplex are Nearly Independent of Helix Conformation and Base‐Pairing Motif
Author(s) -
de La Harpe Kimberly,
CrespoHernández Carlos E.,
Kohler Bern
Publication year - 2009
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200900004
Subject(s) - pairing , duplex (building) , base pair , excited state , dna , motif (music) , chemistry , helix (gastropod) , crystallography , stereochemistry , biophysics , physics , biology , atomic physics , biochemistry , quantum mechanics , ecology , superconductivity , snail , acoustics
DNA photophysics: Femtosecond transient absorption experiments reveal that excited states produced by UV light in a duplex DNA oligonucleotide decay at essentially the same rate in B and Z helix conformers (see figure).