The structure of photosystem II and the mechanism of water oxidation in photosynthesis

JR Shen - Annual review of plant biology, 2015 - annualreviews.org
Oxygenic photosynthesis forms the basis of aerobic life on earth by converting light energy
into biologically useful chemical energy and by splitting water to generate molecular oxygen …

Water oxidation in photosystem II

W Lubitz, M Chrysina, N Cox - Photosynthesis research, 2019 - Springer
Biological water oxidation, performed by a single enzyme, photosystem II, is a central
research topic not only in understanding the photosynthetic apparatus but also for the …

Untangling the sequence of events during the S2 → S3 transition in photosystem II and implications for the water oxidation mechanism

M Ibrahim, T Fransson, R Chatterjee… - Proceedings of the …, 2020 - National Acad Sciences
In oxygenic photosynthesis, light-driven oxidation of water to molecular oxygen is carried out
by the oxygen-evolving complex (OEC) in photosystem II (PS II). Recently, we reported the …

Alternative Mechanism for O2 Formation in Natural Photosynthesis via Nucleophilic Oxo–Oxo Coupling

Y Guo, J Messinger, L Kloo, L Sun - Journal of the American …, 2023 - ACS Publications
O2 formation in photosystem II (PSII) is a vital event on Earth, but the exact mechanism
remains unclear. The presently prevailing theoretical model is “radical coupling”(RC) …

Oxygen-evolving photosystem II structures during S1–S2–S3 transitions

H Li, Y Nakajima, E Nango, S Owada, D Yamada… - Nature, 2024 - nature.com
Photosystem II (PSII) catalyses the oxidation of water through a four-step cycle of S i states
(i= 0–4) at the Mn4CaO5 cluster,–, during which an extra oxygen (O6) is incorporated at the …

Current understanding of the mechanism of water oxidation in photosystem II and its relation to XFEL data

N Cox, DA Pantazis, W Lubitz - Annual review of biochemistry, 2020 - annualreviews.org
The investigation of water oxidation in photosynthesis has remained a central topic in
biochemical research for the last few decades due to the importance of this catalytic process …

Molecular principles of redox-coupled protonation dynamics in photosystem II

F Allgower, AP Gamiz-Hernandez… - Journal of the …, 2022 - ACS Publications
Photosystem II (PSII) catalyzes light-driven water oxidization, releasing O2 into the
atmosphere and transferring the electrons for the synthesis of biomass. However, despite …

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 …

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 …