
doi: 10.1039/b212664h
pmid: 12760530
Cytosine methylation, which determines the hot spots for DNA photo-damage, is shown to induce a red-shift of the nucleoside absorption spectrum, making the chromophore more vulnerable to solar radiation, and a tenfold increase of the fluorescence lifetime, making excited statereactions more probable. A femtosecond investigation of the excited state deactivation reveals a quite complex mechanism.
[CHIM.THEO] Chemical Sciences/Theoretical and/or physical chemistry, Spectrometry, Fluorescence, Spectrophotometry, Ultraviolet, Cytidine
[CHIM.THEO] Chemical Sciences/Theoretical and/or physical chemistry, Spectrometry, Fluorescence, Spectrophotometry, Ultraviolet, Cytidine
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