the optically detected magnetic resonance ( odmr ) spectra of the covalent dna adduct of 9,10-epoxy-9,10,11,12-tetrahydrobenzo [ e ] pyrene ( bepe ) reveal that the excited triplet state chromophore is perturbed by the nucleic acid and that this perturbation is diminished successively by denaturation and enzymatic hydrolysis of the modified dna , indicating that the adduct resides in an environment with some quasi-intercalative character .
C0242958
dna
C0012854
dna