Fig. 18

Detection of εGua in DNA treated with 6-hydroxy-2,4-alkadienal by LC-MS. Mass spectrum of εGua (a) and LC-MS profiles (SIM by molecular ion 176 and fragment ion 148, b-g). b, c εGua standard, d, e reaction of HDE-2 with double-strand-DNA, f, g reaction of DDE-2 with double-strand-DNA