Reduction of substrates by nitrogenases

LC Seefeldt, ZY Yang, DA Lukoyanov, DF Harris… - Chemical …, 2020 - ACS Publications
Nitrogenase is the enzyme that catalyzes biological N2 reduction to NH3. This enzyme
achieves an impressive rate enhancement over the uncatalyzed reaction. Given the high …

Review on the QM/MM methodologies and their application to metalloproteins

CE Tzeliou, MA Mermigki, D Tzeli - Molecules, 2022 - mdpi.com
The multiscaling quantum mechanics/molecular mechanics (QM/MM) approach was
introduced in 1976, while the extensive acceptance of this methodology started in the 1990s …

Evolution of Stabilized 1T‐MoS2 by Atomic‐Interface Engineering of 2H‐MoS2/Fe−Nx towards Enhanced Sodium Ion Storage

H **a, L Zan, P Yuan, G Qu, H Dong, Y Wei… - Angewandte …, 2023 - Wiley Online Library
Metallic conductive 1T phase molybdenum sulfide (MoS2) has been identified as promising
anode for sodium ion (Na+) batteries, but its metastable feature makes it difficult to obtain …

Iron-only Fe-nitrogenase underscores common catalytic principles in biological nitrogen fixation

C Trncik, F Detemple, O Einsle - Nature Catalysis, 2023 - nature.com
Nitrogenases uniquely reduce atmospheric N2 to bioavailable ammonium. They group into
three isoforms that primarily differ in the architecture of their active-site cofactors. A …

Challenges and opportunities for applications of advanced X-ray spectroscopy in catalysis research

GE Cutsail III, S DeBeer - ACS Catalysis, 2022 - ACS Publications
X-ray spectroscopy has had a significant and continually growing impact on catalysis
research for nearly 50 years. In particular, the ability to obtain element selective electronic …

The spectroscopy of nitrogenases

C Van Stappen, L Decamps, GE Cutsail III… - Chemical …, 2020 - ACS Publications
Nitrogenases are responsible for biological nitrogen fixation, a crucial step in the
biogeochemical nitrogen cycle. These enzymes utilize a two-component protein system and …

Multiscale QM/MM modelling of catalytic systems with ChemShell

Y Lu, K Sen, C Yong, DSD Gunn, JA Purton… - Physical Chemistry …, 2023 - pubs.rsc.org
Hybrid quantum mechanical/molecular mechanical (QM/MM) methods are a powerful
computational tool for the investigation of all forms of catalysis, as they allow for an accurate …

Catalysis and structure of nitrogenases

O Einsle - Current Opinion in Structural Biology, 2023 - Elsevier
In providing bioavailable nitrogen as building blocks for all classes of biomacromolecules,
biological nitrogen fixation is an essential process for all organismic life. Only a single …

Understanding the Electronic Structure Basis for N2 Binding to FeMoco: A Systematic Quantum Mechanics/Molecular Mechanics Investigation

Y Pang, R Bjornsson - Inorganic Chemistry, 2023 - ACS Publications
The FeMo cofactor (FeMoco) of Mo nitrogenase is responsible for reducing dinitrogen to
ammonia, but it requires the addition of 3–4 e–/H+ pairs before N2 even binds. A binding …

Analysis of the Geometric and Electronic Structure of Spin-Coupled Iron–Sulfur Dimers with Broken-Symmetry DFT: Implications for FeMoco

B Benediktsson, R Bjornsson - Journal of Chemical Theory and …, 2022 - ACS Publications
The open-shell electronic structure of iron–sulfur clusters presents considerable challenges
to quantum chemistry, with the complex iron–molybdenum cofactor (FeMoco) of nitrogenase …