Kinetic Characterization of Compound I Formation in the Thermostable Cytochrome P450 CYP119

DOI: 10.1074/jbc.c100745200 Authors: David Kellner, Shao-Ching Hung, Kara E. Weiss, Stephen G. Sligar Abstract: The kinetics of formation and breakdown of the putative active oxygenating intermediate in cytochrome P450, a ferryl-oxo-(pi) porphyrin cation radical...

Synthesis and reactivity of the high-valent monomeric and dimeric manganese complexes.

DOI: OA:W3012417436 Authors: Wen‐Yuan Hsieh Abstract: Photosynthetic water oxidation to form dioxygen occurs using a manganese cluster in the oxygen evolving complex (OEC). The higher oxidation states (S3 and S4) of the Mn cluster are still unclear. To examine the...

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...

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...

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...