The O2-Evolving Complex of Photosystem II: Recent Insights from Quantum Mechanics/Molecular Mechanics (QM/MM), Extended X-ray Absorption Fine Structure …

M Askerka, GW Brudvig, VS Batista - Accounts of chemical …, 2017 - ACS Publications
Conspectus Efficient photoelectrochemical water oxidation may open a way to produce
energy from renewable solar power. In biology, generation of fuel due to water oxidation …

Progress toward a molecular mechanism of water oxidation in photosystem II

DJ Vinyard, GW Brudvig - Annual review of physical chemistry, 2017 - annualreviews.org
The active site of photosynthetic water oxidation is the oxygen-evolving complex (OEC) in
the photosystem II (PSII) reaction center. The OEC is a Mn4CaO5 cluster embedded in the …

Missing pieces in the puzzle of biological water oxidation

DA Pantazis - ACS Catalysis, 2018 - ACS Publications
The sunlight-powered oxidation of water by photosystem II (PSII) of algae, plants, and
cyanobacteria underpins the energy conversion processes that sustain most life on our …

Two different structures of the oxygen-evolving complex in the same polypeptide frameworks of photosystem II

A Tanaka, Y Fukushima, N Kamiya - Journal of the American …, 2017 - ACS Publications
The oxygen-evolving complex (OEC) forms the heart of photosystem II (PSII) in
photosynthesis. The crystal structure of PSII from Thermosynechococcus vulcanus has been …

Water-oxidizing complex in Photosystem II: Its structure and relation to manganese-oxide based catalysts

MM Najafpour, I Zaharieva, Z Zand, SM Hosseini… - Coordination Chemistry …, 2020 - Elsevier
Cyanobacteria, green algae, and higher plants provide the major part of molecular O 2 of
Earth atmosphere via water oxidation of oxygenic photosynthesis. The water-oxidizing …

Energetics of proton release on the first oxidation step in the water-oxidizing enzyme

K Saito, A William Rutherford, H Ishikita - Nature communications, 2015 - nature.com
In photosystem II (PSII), the Mn4CaO5 cluster catalyses the water splitting reaction. The
crystal structure of PSII shows the presence of a hydrogen-bonded water molecule directly …

Spin state as a marker for the structural evolution of nature's water-splitting catalyst

V Krewald, M Retegan, F Neese, W Lubitz… - Inorganic …, 2016 - ACS Publications
In transition-metal complexes, the geometric structure is intimately connected with the spin
state arising from magnetic coupling between the paramagnetic ions. The tetramanganese …

Structural models of the biological oxygen-evolving complex: achievements, insights, and challenges for biomimicry

S Paul, F Neese, DA Pantazis - Green Chemistry, 2017 - pubs.rsc.org
The oxygen-evolving complex (OEC) in Photosystem II (PS-II) of oxygenic photosynthesis
catalyzes the oxidation of water into dioxygen, protons and electrons, a reaction that …

The first state in the catalytic cycle of the water-oxidizing enzyme: identification of a water-derived μ-hydroxo bridge

T Lohmiller, V Krewald, A Sedoud… - Journal of the …, 2017 - ACS Publications
Nature's water-splitting catalyst, an oxygen-bridged tetramanganese calcium (Mn4O5Ca)
complex, sequentially activates two substrate water molecules generating molecular O2. Its …

Orientational Jahn–teller isomerism in the dark‐stable state of Nature's water oxidase

M Drosou, G Zahariou, DA Pantazis - Angewandte Chemie, 2021 - Wiley Online Library
The tetramanganese–calcium cluster of the oxygen‐evolving complex of photosystem II
adopts electronically and magnetically distinct but interconvertible valence isomeric forms in …