Facile Electron Transfer during Formation of Cluster X and Kinetic Competence of X for Tyrosyl Radical Production in Protein R2 of Ribonucleotide Reductase from Mouse

DOI: 10.1021/bi011797p Authors: Danny Yun, Carsten Krebs, Govind P. Gupta, David F. Iwig, Boi Hanh Huynh, J. Martin Bollinger Abstract: The kinetics and mechanism of formation of the tyrosyl radical and mu-(oxo)diiron(III) cluster in the R2 subunit of ribonucleotide...

Replacing the Axial Ligand Tyrosine 75 or Its Hydrogen Bond Partner Histidine 83 Minimally Affects Hemin Acquisition by the Hemophore HasAp from Pseudomonas aeruginosa

DOI: 10.1021/bi500030p Authors: Ritesh Kumar, Hirotoshi Matsumura, Scott Lovell, Huili Yao, Juan Carlos Rodrı́guez, K.P. Battaile, Pierre Moënne‐Loccoz, Mario Rivera Abstract: Hemophores from Pseudomonas aeruginosa (HasAp), Serratia marcescens (HasAsm), and Yersinia...

Characterization of the Intramolecular Electron Transfer Pathway from 2-Hydroxyphenazine to the Heterodisulfide Reductase fromMethanosarcina thermophila

DOI: 10.1074/jbc.m004809200 Authors: Eisuke Murakami, Uwe Deppenmeier, Stephen W. Ragsdale Abstract: Heterodisulfide reductase (HDR) is a component of the energy-conserving electron transfer system in methanogens. HDR catalyzes the two-electron reduction of coenzyme...

Water and time dependent interaction of iron(III) with indole-3-acetic acid

DOI: 10.1007/s11224-007-9259-6 Authors: Krisztina Kovács, Virender K. Sharma, Alexander A. Kamnev, Э. Кузманн, Z. Homonnay, A. Vértes Abstract: N/A

Long-range proton-coupled electron transfer in the Escherichia coli class Ia ribonucleotide reductase

DOI: 10.1042/ebc20160072 Authors: Steven Y. Reece, Mohammad R. Seyedsayamdost Abstract: Escherichia coli class Ia ribonucleotide reductase (RNR) catalyzes the conversion of nucleotides to 2′-deoxynucleotides using a radical mechanism. Each turnover requires...