title: Electron transfer in photosystem I containing native and modified quinone acceptors.
abstract: The pigment-protein complex of photosystem I (PS I) catalyzes light-driven oxidation of plastocyanin or cytochrome c6 and reduction of ferredoxin or flavodoxin in oxygenic photosynthetic organisms. In this review, we describe the current state of knowledge of the processes of excitation energy transfer and formation of the primary and secondary ion-radical pairs within PS I. The electron transfer reaction involving quinone cofactor in the A1 site and its role in providing asymmetry of electron transport as well as interaction with oxygen and ascorbate in PS I are discussed.
authors.affiliation: A.N. Belozersky Institute of Physical-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia. semenov@genebee.msu.ru.
authors.forename: A Yu
authors.initials: AY
authors.lastname: Semenov
authors.forename: A A
authors.initials: AA
authors.lastname: Petrova
authors.forename: M D
authors.initials: MD
authors.lastname: Mamedov
authors.forename: V A
authors.initials: VA
authors.lastname: Nadtochenko
mesh_terms: D004579:Electron Transport; D010084:Oxidation-Reduction; D045331:Photosystem I Protein Complex / Q000737:chemistry / Q000378:metabolism*; D010970:Plastocyanin / Q000737:chemistry* / Q000378:metabolism*; D011809:Quinones / Q000737:chemistry / Q000378:metabolism*
chemical_list: D045331:Photosystem I Protein Complex; D011809:Quinones; D010970:Plastocyanin