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J Org Chem. 2009 May 15;74(10):3621-5. doi: 10.1021/jo900375f.

Electron relay race in peptides.

Author information

1
Universität Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland. bernd.giese@unibas.ch

Abstract

A peptide assay was developed that allows the measurement of electron-transfer (ET) efficiencies in peptides. It turns out that two-step ET processes are faster than single-step reactions. This requires relay amino acids with appropriate redox potentials. Not only aromatic but also sulfur-containing aliphatic amino acids can act as stepping stones for the charge. With tryptophan, histidine, and cysteine the reaction is a more complex proton-coupled ET.

PMID:
19344128
DOI:
10.1021/jo900375f
[Indexed for MEDLINE]
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