Abstract:Two phylloquinone molecules (
A
1
), one being predominantly coordinated by PsaA subunit residues (
A
1A
) the other by those of PsaB (
A
1B
), act as intermediates in the two parallel electron transfer chains of Photosystem I. The oxidation kinetics of the two phyllosemiquinones by the iron-sulfur cluster F
X
differ by approximately one order of magnitude, with
being… Show more
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