Direct Spectroscopic and Kinetic Evidence for the Involvement of a Peroxodiferric Intermediate during the Ferroxidase Reaction in Fast Ferritin Mineralization

DOI: 10.1021/bi980847w Authors: Alice S. Pereira, William Small, Carsten Krebs, Pedro Tavares, Dale E. Edmondson, Elizabeth C. Theil, Boi Hanh Huynh Abstract: Rapid freeze-quench (RFQ) Mössbauer and stopped-flow absorption spectroscopy were used to monitor the...

An Oxyferrous Heme/Protein-based Radical Intermediate Is Catalytically Competent in the Catalase Reaction of Mycobacterium tuberculosis Catalase-Peroxidase (KatG)

DOI: 10.1074/jbc.m808106200 Authors: Javier Suárez, Kalina Ranguelova, Andrzej A. Jarzęcki, J. Manzerova, Vladimir Krymov, Xiangbo Zhao, Shengwei Yu, Leonid Metlitsky, Gary J. Gerfen, Richard S. Magliozzo Abstract: A mechanism accounting for the robust catalase...

Cobamides and Ribonucleotide Reduction

DOI: 10.1016/s0021-9258(19)42735-x Authors: William H. Orme‐Johnson, Helmut Beinert, Raymond L. Blakley Abstract: Abstract Reaction mixtures containing coenzyme B12 (5′-deoxyadenosylcobalamin), an equivalent concentration of ribonucleotide reductase from...

Kinetic analysis of amino acid radicals formed in H ₂ O ₂ -driven Cu ^I LPMO reoxidation implicates dominant homolytic reactivity

DOI: 10.1073/pnas.1922499117 Authors: Stephen M. Jones, Wesley J. Transue, Katlyn K. Meier, Bradley R. Kelemen, Edward I. Solomon Abstract: Lytic polysaccharide monooxygenases (LPMOs) have been proposed to react with both [Formula: see text] and [Formula: see text] as...

Insights in the mechanism of selective olefin oligomerisation catalysis using stopped-flow freeze-quench techniques: A Mo K-edge QEXAFS study

DOI: 10.1016/j.jcat.2011.10.015 Authors: Stuart A. Bartlett, Peter P. Wells, Maarten Nachtegaal, Andrew J. Dent, Giannantonio Cibin, Gillian Reid, John Evans, Moniek Tromp Abstract: N/A