DNA-mediated electron transfer from a modified base to ethidium: pi-stacking as modulator of reactivity.


BACKGROUND The DNA double helix is composed of an array of aromatic heterocyclic base pairs and, as a molecular pi-stack, represents a novel system for studying long-range electron transfer. Because many base damage and repair processes result from electron-transfer reactions, the ability of DNA to mediate charge transport holds important biological… (More)


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