Overcoming differences: The catalytic mechanism of metallo‐β‐lactamases

DOI: 10.1016/j.febslet.2015.08.015 Authors: María-Rocío Meini, Leticia I. Llarrull, Alejandro J. Vila Abstract: Metallo-β-lactamases are the latest resistance mechanism of pathogenic and opportunistic bacteria against carbapenems, considered as last resort drugs. The...

Transient protein-linked radicals in mutant apoprotein R2 Y122F of ribonucleotide reductase upon activation by Fe(II)/O2 using stopped-flow and freeze-quench EPR spectroscopy

DOI: 10.1016/0162-0134(95)97469-7 Authors: G. Laßmann, Margareta Sahlin, Stephan Pötsch, Britt‐Marie Sjöberg, Astrid Gräslund Abstract: N/A

Three Different Oxygen-induced Radical Species in Endothelial Nitric-oxide Synthase Oxygenase Domain under Regulation by L-Arginine and Tetrahydrobiopterin

DOI: 10.1074/jbc.m404044200 Authors: Vladimír Berka, Gang Wu, Hui-Chun Yeh, Graham Palmer, Ah‐Lim Tsai Abstract: Endothelial nitric-oxide synthase (eNOS) plays important roles in vascular physiology and homeostasis. Whether eNOS catalyzes nitric oxide biosynthesis or...

Relationship between epidemiological data and the toxicity of coal mine dusts

DOI: 10.1021/bi970590m Authors: J.A. Addison, Robert Bolton, J.M.G. Davis, John S. Dodgson, I.P. Gormley Abstract: Carbon monoxide dehydrogenase/acetyl-CoA synthase (CODH/ACS) from Clostridium thermoaceticum catalyzes (i) the synthesis of acetyl-CoA from a methylated...

Manganese(II) complexes of 1,1′-bis[(pyridin-2-yl)methyl)]-2,2′-bipiperidine (PYBP): Synthesis, structure, catalytic properties in alkene epoxidation with hydrogen peroxide, and related mechanistic studies

DOI: 10.1016/j.ica.2022.121288 Authors: Guang Yang, Elena A. Mikhalyova, Alexander S. Filatov, Sergey V. Kryatov, E.V. Rybak-Akimova Abstract: N/A

Rapid Formation of a Semiquinone Species on Oxidation of Quinol by the Cytochrome bo 3 Oxidase from Escherichia coli

DOI: 10.1007/978-4-431-68476-3_4 Authors: Jeffrey P. Osborne, Sigfried M. Musser, Brian E. Schultz, Dale E. Edmondson, Sunney I. Chan, Robert B. Gennis Abstract: N/A

Addition of Oxygen to the Diiron(II/II) Cluster Is the Slowest Step in Formation of the Tyrosyl Radical in the W103Y Variant of Ribonucleotide Reductase Protein R2 from Mouse

DOI: 10.1021/bi7003747 Authors: Danny Yun, Lana Saleh, Ricardo García‐Serres, Brandon M. Chicalese, Young Hun An, Boi Hanh Huynh, J. Martin Bollinger Abstract: Activation of O2 by the diiron(II/II) cluster in protein R2 of class I ribonucleotide reductase generates...

Different Kinetic Reactivities of Electrons in Distinct TiO₂ Nanoparticle Trap States

DOI: 10.1021/acs.jpcc.0c10633 Authors: Jennifer L. Peper, Noreen E. Gentry, Anna C. Brezny, Mackenzie J. Field, Michael T. Green, James M. Mayer Abstract: Electrons added to TiO2 and other semiconductors often occupy trap states, whose reactivity can determine the...

Arginine Conversion to Nitroxide by Tetrahydrobiopterin-free Neuronal Nitric-oxide Synthase

DOI: 10.1074/jbc.m004337200 Authors: Subrata Adak, Qian Wang, Dennis J. Stuehr Abstract: We studied catalysis by tetrahydrobiopterin (H4B)-free neuronal nitric-oxide synthase (nNOS) to understand how heme and H4B participate in nitric oxide (NO) synthesis. H4B-free...

A re-examination of the reactions of cyanide with cytochrome c oxidase

DOI: 10.1042/bj2200057 Authors: M G Jones, David Bickar, Michael T. Wilson, Maurizio Brunori, Alfredo Colosimo, Paolo Sarti Abstract: Experiments were performed to examine the cyanide-binding properties of resting and pulsed cytochrome c oxidase in both their stable...