The electron transfer complex between nitrous oxide reductase and its electron donors
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چکیده
منابع مشابه
Electron transfer complex between nitrous oxide reductase and cytochrome c552 from Pseudomonas nautica: kinetic, nuclear magnetic resonance, and docking studies.
The multicopper enzyme nitrous oxide reductase (N 2OR) catalyzes the final step of denitrification, the two-electron reduction of N 2O to N 2. This enzyme is a functional homodimer containing two different multicopper sites: CuA and CuZ. CuA is a binuclear copper site that transfers electrons to the tetranuclear copper sulfide CuZ, the catalytic site. In this study, Pseudomonas nautica cytochro...
متن کاملCuA and CuZ are variants of the electron transfer center in nitrous oxide reductase.
Nitrous oxide reductase (N2OR) is a dimeric copper-dependent bacterial enzyme that catalyzes the reduction of N2O to N2 as part of the denitrification pathway. In the absence of an x-ray crystal structure, the current model of the nature of the copper sites within the enzyme is based on four copper atoms per monomer and assigns two copper atoms to an electron transfer center, CuA, a bis-thiolat...
متن کاملElectron collisions with nitrous oxide
We have carried out theoretical studies of low-energy elastic electron collisions with nitrous oxide (N2O), obtaining differential, integral, and momentum-transfer cross sections. Polarization effects are incorporated in the electron-molecule scattering dynamics. A simple, objective, and physically motivated criterion is introduced for constructing a compact set of configurations that accuratel...
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CRYSTAL STRUCTURE OF THE PUTIDAREDOXIN REDUCTASEPUTIDAREDOXIN ELECTRON TRANSFER COMPLEX Irina F. Sevrioukova, Thomas L. Poulos, and Inna Y. Churbanova⊥, From the Departments of Molecular Biology and Biochemistry, Chemistry and Pharmaceutical Sciences, University of California, Irvine, California 92697-3900 Running title: Crystal structure of the Pdr-Pdx complex Address correspondence to: Irina ...
متن کاملElectron paramagnetic resonance observations on the cytochrome c-containing nitrous oxide reductase from Wolinella succinogenes.
Nitrous oxide reductase from Wolinella succinogenes, an enzyme containing one heme c and four Cu atoms/subunit of Mr = 88,000, was studied by electron paramagnetic resonance (EPR) at 9.2 GHz from 6 to 80 K. In the oxidized state, low spin ferric cytochrome c was observed with gz = 3.10 and an axial Cu resonance was observed with g parallel = 2.17 and g perpendicular = 2.035. No signals were det...
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ژورنال
عنوان ژورنال: JBIC Journal of Biological Inorganic Chemistry
سال: 2011
ISSN: 0949-8257,1432-1327
DOI: 10.1007/s00775-011-0812-9