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Long-Range Electron Transfer through DNA Films

✍ Scribed by Shana O. Kelley; Nicole M. Jackson; Michael G. Hill; Jacqueline K. Barton

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 164 KB
Volume: 38
Category: Article
ISSN: 0044-8249
DOI: 10.1002/(sici)1521-3773(19990401)38:7<941::aid-anie941>3.0.co;2-7

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✦ Synopsis

Regardless of its position within the DNA film, cross-linked daunomycin (DM) is efficiently reduced electrochemically, indicating that the electron transfer exhibits a shallow distance dependence. Upon the introduction of an intervening cytosine-adenine (CA) mismatch, the electrochemical response is dramatically attenuated (shown schematically). Therefore, the DNA double helix can facilitate long-range electron transfer, but only in the presence of a well-stacked pathway.

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