Interquinone Electron Transfer in Photosystem I As Evidenced by Altering the Hydrogen Bond Strength to the Phylloquinone(s)

The kinetics of electron transfer from phyllosemiquinone (PhQ•−) to the iron sulfur cluster FX in Photosystem I (PS I) are described by lifetimes of ∼20 and ∼250 ns. These two rates are attributed to reactions involving the quinones bound primarily by the PsaB (PhQB) and PsaA (PhQA) subunits, respec...

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Veröffentlicht in:	The journal of physical chemistry. B 2010-07, Vol.114 (28), p.9300-9312
Hauptverfasser:	Santabarbara, Stefano, Reifschneider, Kiera, Jasaitis, Audrius, Gu, Feifei, Agostini, Giancarlo, Carbonera, Donatella, Rappaport, Fabrice, Redding, Kevin E
Format:	Artikel
Sprache:	eng
Schlagworte:	B: Biophysical Chemistry Chlamydomonas reinhardtii - metabolism Electron Transport Hydrogen Bonding Kinetics Mutation Oxidation-Reduction Photosystem I Protein Complex - chemistry Photosystem I Protein Complex - metabolism Vitamin K 1 - chemistry
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