The mechanism for proton-coupled electron transfer from tyrosine in a model complex and comparisons with YZ oxidation in photosystem II

Martin Sjödin, Stenbjörn Styring, Björn Åkermark, Licheng Sun, Leif Hammarström*, A. Melis, C. Dismukes, P. L. Dutton, M. Aukauloo, R. D. Britt, M. Iwaki

*この研究の対応する著者

研究成果: Article査読

50 被引用数 (Scopus)

抄録

In the water-oxidizing reactions of photosystem II (PSII), a tyrosine residue plays a key part as an intermediate electron-transfer reactant between the primary donor chlorophylls (the pigment P680) and the water-oxidizing Mn cluster. The tyrosine is deprotonated upon oxidation, and the coupling between the proton reaction and electron transfer is of great mechanistic importance for the understanding of the water-oxidation mechanism. Within a programme on artificial photosynthesis, we have made and studied the proton-coupled tyrosine oxidation in a model system and been able to draw mechanistic conclusions that we use to interpret the analogous reactions in PSII.

本文言語English
ページ(範囲)1471-1479
ページ数9
ジャーナルPhilosophical Transactions of the Royal Society B: Biological Sciences
357
1426
DOI
出版ステータスPublished - 2002 10月 29
外部発表はい

ASJC Scopus subject areas

  • 生化学、遺伝学、分子生物学(全般)
  • 農業および生物科学(全般)

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