Understanding biological hydrogen transfer through the lens of temperature dependent kinetic isotope effects

JP Klinman, AR Offenbacher - Accounts of chemical research, 2018 - ACS Publications
Hydrogen atom transfer (HAT) is a salient feature of many enzymatic C–H cleavage
mechanisms. In systems where kinetic isolation of HAT is achieved, selective labeling of …

[HTML][HTML] Bacterial lipoxygenases: Biochemical characteristics, molecular structure and potential applications

R Chrisnasari, M Hennebelle, JP Vincken… - Biotechnology …, 2022 - Elsevier
Lipoxygenases (LOXs) are enzymes that catalyze dioxygenation of polyunsaturated fatty
acids into fatty acid hydroperoxides. The formed fatty acid hydroperoxides are of interest as …

Temporal and spatial resolution of distal protein motions that activate hydrogen tunneling in soybean lipoxygenase

JPT Zaragoza, AR Offenbacher, S Hu… - Proceedings of the …, 2023 - National Acad Sciences
The enzyme soybean lipoxygenase (SLO) provides a prototype for deep tunneling
mechanisms in hydrogen transfer catalysis. This work combines room temperature X-ray …

An open quantum systems approach to proton tunnelling in DNA

L Slocombe, M Sacchi, J Al-Khalili - Communications Physics, 2022 - nature.com
One of the most important topics in molecular biology is the genetic stability of DNA. One
threat to this stability is proton transfer along the hydrogen bonds of DNA that could lead to …

Exploring proton-coupled electron transfer at multiple scales

S Hammes-Schiffer - Nature computational science, 2023 - nature.com
The coupling of electron and proton transfer is critical for chemical and biological processes
spanning a wide range of length and time scales and often occurring in complex …

Exploring the minimum-energy pathways and free-energy profiles of enzymatic reactions with QM/MM calculations

K Yagi, S Ito, Y Sugita - The Journal of Physical Chemistry B, 2021 - ACS Publications
Understanding molecular mechanisms of enzymatic reactions is of vital importance in
biochemistry and biophysics. Here, we introduce new functions of hybrid quantum …

Theoretical perspectives on non-Born–Oppenheimer effects in chemistry

S Hammes-Schiffer - … Transactions of the Royal Society A, 2022 - royalsocietypublishing.org
The Born–Oppenheimer approximation, which assumes that the electrons respond
instantaneously to the motion of the nuclei, breaks down for a wide range of chemical and …

[HTML][HTML] Proton transfer reactions: from photochemistry to biochemistry and bioenergetics

AP Demchenko - BBA advances, 2023 - Elsevier
The present Review is an attempt by projecting the basic knowledge on photochemical
proton transfer to achieve consistent understanding of proton motions in biocatalysis …

Graph-theory-based molecular fragmentation for efficient and accurate potential surface calculations in multiple dimensions

A Kumar, N DeGregorio, SS Iyengar - Journal of Chemical Theory …, 2021 - ACS Publications
We present a multitopology molecular fragmentation approach, based on graph theory, to
calculate multidimensional potential energy surfaces in agreement with post-Hartree–Fock …

Origins of the diffuse shared proton vibrational signatures in proton-coupled electron transfer model dyad complexes

L Chen, Z Ma, JA Fournier - The Journal of Chemical Physics, 2022 - pubs.aip.org
Phenol-benzimidazole and phenol-pyridine dyad complexes have served as popular model
systems for the study of proton-coupled electron transfer (PCET) kinetics in solution-phase …