Serial femtosecond crystallography

TRM Barends, B Stauch, V Cherezov… - Nature reviews Methods …, 2022 - nature.com
With the advent of X-ray free-electron lasers (XFELs), new, high-throughput serial
crystallography techniques for macromolecular structure determination have emerged …

Molecular Catalysis of Energy Relevance in Metal–Organic Frameworks: From Higher Coordination Sphere to System Effects

NF Suremann, BD McCarthy, W Gschwind… - Chemical …, 2023 - ACS Publications
The modularity and synthetic flexibility of metal–organic frameworks (MOFs) have provoked
analogies with enzymes, and even the term MOFzymes has been coined. In this review, we …

Structural evidence for intermediates during O2 formation in photosystem II

A Bhowmick, R Hussein, I Bogacz, PS Simon… - Nature, 2023 - nature.com
In natural photosynthesis, the light-driven splitting of water into electrons, protons and
molecular oxygen forms the first step of the solar-to-chemical energy conversion process …

The electron–proton bottleneck of photosynthetic oxygen evolution

P Greife, M Schönborn, M Capone, R Assunção… - Nature, 2023 - nature.com
Photosynthesis fuels life on Earth by storing solar energy in chemical form. Today's oxygen-
rich atmosphere has resulted from the splitting of water at the protein-bound manganese …

Solar energy conversion by photosystem II: principles and structures

D Shevela, JF Kern, G Govindjee, J Messinger - Photosynthesis research, 2023 - Springer
Photosynthetic water oxidation by Photosystem II (PSII) is a fascinating process because it
sustains life on Earth and serves as a blue print for scalable synthetic catalysts required for …

Water networks in photosystem II using crystalline molecular dynamics simulations and room-temperature XFEL serial crystallography

MD Doyle, A Bhowmick, DC Wych… - Journal of the …, 2023 - ACS Publications
Structural dynamics of water and its hydrogen-bonding networks play an important role in
enzyme function via the transport of protons, ions, and substrates. To gain insights into these …

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 …

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 …

Functional water networks in fully hydrated photosystem II

A Sirohiwal, DA Pantazis - Journal of the American Chemical …, 2022 - ACS Publications
Water channels and networks within photosystem II (PSII) of oxygenic photosynthesis are
critical for enzyme structure and function. They control substrate delivery to the oxygen …