Charge transfer through DNA plays an important role in various biological processes as gene damage, damage recognition and repair by proteins. The present thesis investigates the principles of reductive and oxidative charge transfer through DNA and between peptides and oligonucleotides using chemically modified oligonucleotides and peptides. For this purpose various photoexcitable model nucleosides are synthesised, incorporated in DNA and after that their charge transfer behaviour under the influence of DNA binding peptides was spectroscopically and chemically characterised. New fluorescent DNA-labels are also results of this work as important insights in charge transfer processes between peptides and DNA.
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Charge transfer through DNA plays an important role in various biological processes as gene damage, damage recognition and repair by proteins. The present thesis investigates the principles of reductive and oxidative charge transfer through DNA and between peptides and oligonucleotides using chemically modified oligonucleotides and peptides. For this purpose various photoexcitable model nucleosides are synthesised, incorporated in DNA and after that their charge transfer behaviour under the infl...
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