NDLI: The structure and activation of substrate water molecules in the S<sub>2</sub> state of photosystem II studied by hyperfine sublevel correlation spectroscopy

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Contents list

Proton-coupled electron transfer

Proton-coupled electron transfer: classification scheme and guide to theoretical methods

The role of proton coupled electron transfer in water oxidation

Electrochemical approach to proton-coupled electron transfers: recent advances

Bimolecular proton-coupled electron transfer from tryptophan with water as the proton acceptor

Proton-coupled electron transfer kinetics for the hydrogen evolution reaction of hangman porphyrins

Proton relay and electron flow in the O–O single bond formation in water oxidation by the ruthenium blue dimer

The structure and activation of substrate water molecules in the S₂ state of photosystem II studied by hyperfine sublevel correlation spectroscopy

Electrochemical hydrogen production in aqueous micellar solution by a diiron benzenedithiolate complex relevant to [FeFe] hydrogenases

Electrochemical generation of hydrogen from acetic acid using a molecular molybdenum–oxo catalyst

Using combinations of oxidants and bases as PCET reactants: thermochemical and practical considerations

Post-processing pathways in carbon capture and storage by mineral carbonation (CCSM) towards the introduction of carbon neutral materials

Top ten fundamental challenges of biomass pyrolysis for biofuels

Towards solution processed all-carbon solar cells: a perspective

Conjugated porous polymers for energy applications

Air as the renewable carbon source of the future: an overview of CO₂ capture from the atmosphere

Electrical energy storage for transportation—approaching the limits of, and going beyond, lithium-ion batteries

Pyrolytic conversion of cellulose to fuels: levoglucosan deoxygenation via elimination and cyclization within molten biomass

First implementation of alkaline polymer electrolyte water electrolysis working only with pure water

Nickel oxide functionalized silicon for efficient photo-oxidation of water

Highly stable Si-based multicomponent anodes for practical use in lithium-ion batteries

Growth of ultrathin mesoporous Co₃O₄ nanosheet arrays on Ni foam for high-performance electrochemical capacitors

Comb-shaped polymers to enhance hydroxide transport in anion exchange membranes

A tubular polypyrrole based air electrode with improved O₂ diffusivity for Li–O₂ batteries

Triple-coaxial electrospun amorphous carbon nanotubes with hollow graphitic carbon nanospheres for high-performance Li ion batteries

A cobalt(ii) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction

Superhydrophobic and superoleophilic properties of graphene-based sponges fabricated using a facile dip coating method

Raman spectroscopic monitoring of carbon deposition on hydrocarbon-fed solid oxide fuel cell anodes

Hierarchical TiO₂–Si nanowire architecture with photoelectrochemical activity under visible light illumination

Second-coordination-sphere and electronic effects enhance iridium(iii)-catalyzed homogeneous hydrogenation of carbon dioxide in water near ambient temperature and pressure

Improving the cycling stability of silicon nanowire anodes with conducting polymer coatings

Rechargeable Li–O₂ batteries with a covalently coupled MnCo₂O₄–graphene hybrid as an oxygen cathode catalyst

Exploration of the active center structure of nitrogen-doped graphene-based catalysts for oxygen reduction reaction

High efficiency polymer solar cells based on poly(3-hexylthiophene)/indene-C₇₀ bisadduct with solvent additive

Lithium storage in nitrogen-rich mesoporous carbon materials

Selective oxidation of complex, water-insoluble biomass to formic acid using additives as reaction accelerators

Low effective mass leading to high thermoelectric performance

Bioelectrical redox cycling of anthraquinone-2,6-disulfonate coupled to perchlorate reduction

Impact of Sr segregation on the electronic structure and oxygen reduction activity of SrTi_1−xFe_xO₃ surfaces

Crystallographically preferred oriented TiO₂ nanotube arrays for efficient photovoltaic energy conversion

Enhanced methane yields from anaerobic digestion of Arthrospira maxima biomass in an advanced flow-through reactor with an integrated recirculation loop microbial fuel cell

Low-cost and large-scale synthesis of alkaline earth metal germanate nanowires as a new class of lithium ion battery anode material

Design criteria for electrochemical shock resistant battery electrodes

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The structure and activation of substrate water molecules in the S₂ state of photosystem II studied by hyperfine sublevel correlation spectroscopy

Content Provider	Royal Society of Chemistry (RSC)
Author	Chatterjee, Ruchira Shen, Jian-Ren Milikisiyants, Sergey Coates, Christopher S. Lakshmi, K. V. Koua, Faisal H. M.
Copyright Year	2012
Abstract	The water-splitting protein, photosystem II, catalyzes the light-driven oxidation of water to dioxygen. The solar water oxidation reaction takes place at the catalytic center, referred to as the oxygen-evolving complex, of photosystem II. During the catalytic cycle, the oxygen-evolving complex cycles through five distinct intermediate states, S0–S4. In this study, we trap the oxygen-evolving complex in the S2 intermediate state by low temperature illumination of photosystem II isolated from three different species, Thermosynechococcus vulcanus, the PsbB variant of Synechocystis PCC 6803 and spinach. We apply two-dimensional hyperfine sublevel correlation spectroscopy to detect weak magnetic interactions between the paramagnetic tetra-nuclear manganese cluster of the S2 state of the OEC and the surrounding protons. We identify five groups of protons that are interacting with the tetra-nuclear manganese cluster. From the values of hyperfine interactions and using the recently reported 1.9 Å resolution X-ray structure of the OEC in the S1 state [Umena et al., Nature, 2011, 473, 55], we discuss the assignments of the five groups of protons and draw important conclusions on the structure of the oxygen-evolving complex in the S2 state. In addition, we conclude that the structure of OEC is nearly identical in photosystem II from Thermosynechococcus vulcanus, the PsbB variant of Synechocystis PCC 6803 and spinach.
Starting Page	7747
Ending Page	7756
Page Count	10
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	5
Issue Number	7
Journal	Energy & Environmental Science
DOI	10.1039/c2ee21210b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	OEC Protein Photosystem II Catalysis Oxygen Oxygen-evolving complex Catalytic cycle Synechocystis Spinach Hyperfine structure Two-dimensional nuclear magnetic resonance spectroscopy Paramagnetism Manganese X-ray crystallography
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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Water oxidation catalysis by manganese oxides: learning from evolution

Layered manganese oxides for water-oxidation: alkaline earth cations influence catalytic activity in a photosystem II-like fashion

Electronic Structure of Tyrosyl D Radical of Photosystem II, as Revealed by 2D-Hyperfine Sublevel Correlation Spectroscopy

The state of manganese in the photosynthetic apparatus: 4. Structure of the manganese complex in Photosystem II studied using EXAFS spectroscopy. The S1 state of the O2-evolving Photosystem II complex from spinach

Applied magnetic resonance is mn-bound substrate water protonated in the s2 state of photosystem ii?.

The Basic Properties of the Electronic Structure of the Oxygen-evolving Complex of Photosystem II Are Not Perturbed by Ca2+ Removal

Structure of the catalytic, inorganic core of oxygen-evolving photosystem II at 1.9 Å resolution.

Influence of the 33 kDa manganese-stabilizing protein on the structure and substrate accessibility of the oxygen-evolving complex of photosystem II.

Three-dimensional Electron Cryo-microscopy Study of the Extrinsic Domains of the Oxygen-evolving Complex of Spinach ASSIGNMENT OF THE PsbO PROTEIN

The structure and activation of substrate water molecules in the S₂ state of photosystem II studied by hyperfine sublevel correlation spectroscopy

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Water oxidation catalysis by manganese oxides: learning from evolution

Layered manganese oxides for water-oxidation: alkaline earth cations influence catalytic activity in a photosystem II-like fashion

Electronic Structure of Tyrosyl D Radical of Photosystem II, as Revealed by 2D-Hyperfine Sublevel Correlation Spectroscopy

The state of manganese in the photosynthetic apparatus: 4. Structure of the manganese complex in Photosystem II studied using EXAFS spectroscopy. The S1 state of the O2-evolving Photosystem II complex from spinach

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Three-dimensional Electron Cryo-microscopy Study of the Extrinsic Domains of the Oxygen-evolving Complex of Spinach ASSIGNMENT OF THE PsbO PROTEIN

The structure and activation of substrate water molecules in the S2 state of photosystem II studied by hyperfine sublevel correlation spectroscopy

The structure and activation of substrate water molecules in the S₂ state of photosystem II studied by hyperfine sublevel correlation spectroscopy