Role of Hydrophobic Interactions in the Flavodoxin Mediated Electron Transfer from Photosystem I to Ferredoxin-NADP+Reductase inAnabaenaPCC 7119†

Biochemistry ◽  
2003 ◽  
Vol 42 (7) ◽  
pp. 2036-2045 ◽  
Author(s):  
Isabel Nogués ◽  
Marta Martínez-Júlvez ◽  
José A. Navarro ◽  
Manuel Hervás ◽  
Lorena Armenteros ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Hydrophobic Interactions ◽  
Mediated Electron Transfer

scholarly journals On the role of non-diagonal system–environment interactions in bridge-mediated electron transfer

2020 ◽  
Vol 153 (18) ◽  
pp. 185101
Author(s):  
Nirmalendu Acharyya ◽  
Roman Ovcharenko ◽  
Benjamin P. Fingerhut
Keyword(s):  
Electron Transfer ◽  
System Environment ◽  
Diagonal System ◽  
Mediated Electron Transfer

Photosystem I Multilayers within Porous Indium Tin Oxide Cathodes Enhance Mediated Electron Transfer

2020 ◽  
Vol 7 (3) ◽  
pp. 585-585
Author(s):  
Kody D. Wolfe ◽  
Dilek Dervishogullari ◽  
Christopher D. Stachurski ◽  
Joshua M. Passantino ◽  
G. Kane Jennings ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Mediated Electron Transfer ◽  
Oxide Cathodes

scholarly journals Photosystem I Multilayers within Porous Indium Tin Oxide Cathodes Enhance Mediated Electron Transfer

2019 ◽  
Vol 7 (3) ◽  
pp. 596-603 ◽  
Author(s):  
Kody D. Wolfe ◽  
Dilek Dervishogullari ◽  
Christopher D. Stachurski ◽  
Joshua M. Passantino ◽  
G. Kane Jennings ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Mediated Electron Transfer ◽  
Oxide Cathodes

scholarly journals Essential Role of a Single Arginine of Photosystem I in Stabilizing the Electron Transfer Complex with Ferredoxin

2000 ◽  
Vol 275 (10) ◽  
pp. 7030-7036 ◽  
Author(s):  
Patrick Barth ◽  
Isabelle Guillouard ◽  
Pierre Sétif ◽  
Bernard Lagoutte
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Essential Role ◽  
Electron Transfer Complex

scholarly journals Structure of plant Photosystem I-plastocyanin complex reveals strong hydrophobic interactions

2021 ◽  
Author(s):  
Ido Caspy ◽  
Mariia Fadeeva ◽  
Sebastian Kuhlgert ◽  
Anna Borovikova-Sheinker ◽  
Daniel Klaiman ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Genetic Engineering ◽  
Photosystem I ◽  
Ternary Complex ◽  
Hydrophobic Interactions ◽  
Structural Data ◽  
Water Molecules ◽  
Ferredoxin Oxidoreductase ◽  
Complex Forms ◽  
Oxidized Pc

Photosystem I is defined as plastocyanin-ferredoxin oxidoreductase. Taking advantage of genetic engineering, kinetic analyses and cryo-EM, our data provide novel mechanistic insights into binding and electron transfer between PSI and Pc. Structural data at 2.74 Å resolution reveals strong hydrophobic interactions in the plant PSI-Pc ternary complex, leading to exclusion of water molecules from PsaA-PsaB / Pc interface once the PSI-Pc complex forms. Upon oxidation of Pc, a slight tilt of bound oxidized Pc allows water molecules to accommodate the space between Pc and PSI to drive Pc dissociation. Such a scenario is consistent with the six times larger dissociation constant of oxidized as compared to reduced Pc and mechanistically explains how this molecular machine optimized electron transfer for fast turnover.

Ultrafast Dynamics in DNA-Mediated Electron Transfer: Base Gating and the Role of Temperature

2003 ◽  
Vol 115 (47) ◽  
pp. 6076-6080 ◽  
Author(s):  
Melanie A. O'Neill ◽  
Hans-Christian Becker ◽  
Chaozhi Wan ◽  
Jacqueline K. Barton ◽  
Ahmed H. Zewail
Keyword(s):  
Electron Transfer ◽  
Ultrafast Dynamics ◽  
Mediated Electron Transfer

scholarly journals Photosynthetic Electron Transfer by Dint of Protein Mobile Carriers. Multi-particle Brownian and Molecular Modeling

2019 ◽  
Vol 224 ◽  
pp. 03008
Author(s):  
Galina Riznichenk ◽  
Ilya Kovalenko ◽  
Vladimir Fedorov ◽  
Sergei Khruschev ◽  
Andrey Rubin
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Protein Interactions ◽  
Thylakoid Membrane ◽  
Electrostatic Interactions ◽  
Simulation Method ◽  
Photosynthetic Membrane ◽  
Dynamic Simulations ◽  
Multienzyme Complexes

The paper presents the review of works on modeling the interaction of photosynthetic proteins using the multiparticle Brownian dynamics method developed at the Department of Biophysics, Biological Faculty, Lomonosov Moscow State University. The method describes the displacement of individual macromolecules – mobile electron carriers, and their electrostatic interactions between each other and with pigment-protein complexes embedded in photosynthetic membrane. Three-dimensional models of the protein molecules were constructed on the basis of the data from the Protein Data Bank. We applied the Brownian methods coupled to molecular dynamic simulations to reveal the role of electrostatic interactions and conformational motions in the transfer of an electron from the cytochrome complex Cyt b6f) membrane we developed the model which combines events of proteins Pc diffusion along the thylakoid membrane, electrostatic interactions of Pc with the membrane charges, formation of Pc super-complexes with multienzyme complexes of Photosystem I and to the molecule of the mobile carrier plastocyanin (Pc) in plants, green algae and cyanic bacteria. Taking into account the interior of photosynthetic membrane we developed the model which combines events of proteins Pc diffusion along the thylakoid membrane, electrostatic interactions of Pc with the membrane charges, formation of Pc super-complexes with multienzyme complexes of Photosystem I and Cyt b6f, embedded in photosynthetic membrane, electron transfer and complex dissociation. Multiparticle Brownian simulation method can be used to consider the processes of protein interactions in subcellular systems in order to clarify the role of individual stages and the biophysical mechanisms of these processes.

Ultrafast Dynamics in DNA-Mediated Electron Transfer: Base Gating and the Role of Temperature

2003 ◽  
Vol 42 (47) ◽  
pp. 5896-5900 ◽  
Author(s):  
Melanie A. O'Neill ◽  
Hans-Christian Becker ◽  
Chaozhi Wan ◽  
Jacqueline K. Barton ◽  
Ahmed H. Zewail
Keyword(s):  
Electron Transfer ◽  
Ultrafast Dynamics ◽  
Mediated Electron Transfer

scholarly journals AnabaenaFlavodoxin as an Electron Carrier from Photosystem I to Ferredoxin-NADP+Reductase. Role of Flavodoxin Residues in Protein−Protein Interaction and Electron Transfer†

Biochemistry ◽  
2005 ◽  
Vol 44 (1) ◽  
pp. 97-104 ◽  
Author(s):  
Isabel Nogués ◽  
Manuel Hervás ◽  
José R. Peregrina ◽  
José A. Navarro ◽  
Miguel A. de la Rosa ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photosystem I ◽  
Protein Interaction ◽  
Electron Carrier ◽  
Protein Protein Interaction
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