Mechanisms of proteolytic enzymes and their inhibition in QM/MM studies

B Elsässer, P Goettig - International Journal of Molecular Sciences, 2021 - mdpi.com
Experimental evidence for enzymatic mechanisms is often scarce, and in many cases
inadvertently biased by the employed methods. Thus, apparently contradictory model …

Neutron scattering in the biological sciences: progress and prospects

R Ashkar, H Bilheux, H Bordallo, R Briber… - … Section D: Structural …, 2018 - journals.iucr.org
The scattering of neutrons can be used to provide information on the structure and dynamics
of biological systems on multiple length and time scales. Pursuant to a National Science …

Capture of activated dioxygen intermediates at the copper-active site of a lytic polysaccharide monooxygenase

GC Schröder, WB O'Dell, SP Webb, PK Agarwal… - Chemical …, 2022 - pubs.rsc.org
Metalloproteins perform a diverse array of redox-related reactions facilitated by the
increased chemical functionality afforded by their metallocofactors. Lytic polysaccharide …

Direct visualization of critical hydrogen atoms in a pyridoxal 5′-phosphate enzyme

S Dajnowicz, RC Johnston, JM Parks… - Nature …, 2017 - nature.com
Enzymes dependent on pyridoxal 5′-phosphate (PLP, the active form of vitamin B6)
perform a myriad of diverse chemical transformations. They promote various reactions by …

[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 …

An N⋯ H⋯ N low-barrier hydrogen bond preorganizes the catalytic site of aspartate aminotransferase to facilitate the second half-reaction

VN Drago, S Dajnowicz, JM Parks, MP Blakeley… - Chemical …, 2022 - pubs.rsc.org
Pyridoxal 5′-phosphate (PLP)-dependent enzymes have been extensively studied for their
ability to fine-tune PLP cofactor electronics to promote a wide array of chemistries. Neutron …

On the case of the misplaced hydrogens

P Kumar, PK Agarwal, MJ Cuneo - ChemBioChem, 2021 - Wiley Online Library
Few other elements play a more central role in biology than hydrogen. The interactions,
bonding and movement of hydrogen atoms are central to biological catalysis, structure and …

[PDF][PDF] Room-temperature neutron and X-ray data collection of 3CL Mpro from SARS-CoV-2

DW Kneller, G Phillips, A Kovalevsky… - … Section F: Structural …, 2020 - journals.iucr.org
The replication of SARS-CoV-2 produces two large polyproteins, pp1a and pp1ab, that are
inactive until cleavage by the viral chymotrypsin-like cysteine protease enzyme (3CL Mpro) …

Structure and dynamics of the active site of hen egg-white lysozyme from atomic resolution neutron crystallography

J Ramos, V Laux, SA Mason, MH Lemée, MW Bowler… - Structure, 2025 - cell.com
Hen egg-white lysozyme (HEWL) is a widely used model protein in crystallographic studies
and its enzymatic mechanism has been extensively investigated for decades. Despite this …

Dangerous liaisons: Anion-induced protonation in phosphate–polyamine interactions and their implications for the charge states of biologically relevant surfaces

G Laucirica, WA Marmisollé, O Azzaroni - Physical Chemistry Chemical …, 2017 - pubs.rsc.org
Although not always considered a preponderant interaction, amine–phosphate interactions
are omnipresent in multiple chemical and biological systems. This study aims to answer …