Photochemistry of highly organized biomolecules: Sequence-selective photoreaction of DNA
described. One example includes a specific photocleavage of DNA duplex at 5' side of 5'-GG-3' sequence by a "photo-Fenton reagent", whereas the other is the sequenceselective photoreaction of S-AB'U- site of DNA duplex which results in formation of a 2-deoxyribonolactone residue with release of free adenine via selective hydrogen