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Issue 22, 2003
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Competitive electron transfers from a tyrosyl side-chain and peptide bond in the photodegradation of N-tosyl α-aminomethylamides: an insight into photosynthesis and photodamage in the biological oxidation of water?

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Abstract

Photo-excited N-tosyl derivatives of phenylalanyl- and, more particularly, O-methyltyrosylmethylamides undergo electron transfer from aryl to tosyl groups whereas the photo-degradation of aliphatic analogues is initiated by electron transfer from the peptide bond, suggesting the latter as one possible reason for the rapid turnover of the D1 protein in biological water oxidation when the essential mediating role of tyrosine 116 in the PSII complex is inhibited.

Graphical abstract: Competitive electron transfers from a tyrosyl side-chain and peptide bond in the photodegradation of N-tosyl α-aminomethylamides: an insight into photosynthesis and photodamage in the biological oxidation of water?

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Publication details

The article was received on 23 Jul 2003, accepted on 23 Sep 2003 and first published on 09 Oct 2003


Article type: Communication
DOI: 10.1039/B308525B
Chem. Commun., 2003, 2838-2839

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    Competitive electron transfers from a tyrosyl side-chain and peptide bond in the photodegradation of N-tosyl α-aminomethylamides: an insight into photosynthesis and photodamage in the biological oxidation of water?

    R. R. Hill, S. A. Moore and D. R. Roberts, Chem. Commun., 2003, 2838
    DOI: 10.1039/B308525B

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