Fig. 2: Normalized absorption and emission spectra for 4tT and T(T4tT)2T2.
From: Detection of the thietane precursor in the UVA formation of the DNA 6-4 photoadduct

Room-temperature absorption and emission spectra for 4tT in PBS at pH 7.4 are shown using blue lines, while those for T(T4tT)2T2 are depicted using red lines. We remark that the emission spectrum for T(T4tT)2T2 has a very small intensity and may not be measured accurately within the sensitivity of the spectrofluorometer used in this work. Photoexcitation was performed at 340 nm.