A deep hole trap is 7-deazaguanine (Z) - According to time-resolved transient absorption spectroscopy and kinetic modeling - For hole transport in DNA from a guanine (G) to a Z base across one or two intervening adenine-thymine base pairs. The Gibbs energy for hole transport from G to Z was determined to be - 0.19 eV, much larger than values for GG or GGG sites. Thus Z effectively prevents charge migration in DNA.
|Number of pages||3|
|Journal||Angewandte Chemie - International Edition|
|Publication status||Published - Mar 15 2002|
- DNA conjugates
- Electron transfer
- Picosecond spectroscopy 1020-1022
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