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Updated: Sep 28, 2026

A New Approach for the Comparative Analysis of Multiprotein Complexes Based on 15N Metabolic Labeling and Quantitative Mass Spectrometry
Published on: March 13, 2014
A plausible mechanism of electron transfer between quinones in photosynthetic reaction centers
A Peluso1, M Di Donato, R Improta
1Dipartimento di Chimica, Università di Salerno, Baronissi, Salerno, I-84081, Italy. apeluso@chem.unisa.it
Abstract:
The mechanism of long-range electron transfer between the primary and the secondary quinone of photosynthetic reaction centers has been investigated, with particular attention on the role of the iron-histidine bridge. Computations suggest that in such a system, where the molecular subunits are packed together by H-bonds, a mobile electron, injected on one end of the chain, can be carried to the other end by switching the positions of the H-bonded hydrogens. Energy estimates would suggest that the proposed mechanism is plausible and worthy of further experimental investigations.
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