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Journal Articles Photochemical and Photobiology Sciences Year : 2003

Photophysical properties of 5-methylcytosine


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 state reactions more probable. A femtosecond investigation of the excited state deactivation reveals a quite complex mechanism.
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hal-00123622 , version 1 (13-12-2019)



A. Sharonov, T. Gustavsson, Sylvie Marguet, D. Markovitsi. Photophysical properties of 5-methylcytosine. Photochemical and Photobiology Sciences, 2003, 2, pp.362 - 364. ⟨10.1039/b212664h⟩. ⟨hal-00123622⟩
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