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  Evidence for Distinct Electron Transfer Processes in Terminal Oxidases from Different Origin by Means of Protein Film Voltammetry

Meyer, T., Melin, F., Xie, H., von der Hocht, I., Choi, S. K., Noor, M. R., et al. (2014). Evidence for Distinct Electron Transfer Processes in Terminal Oxidases from Different Origin by Means of Protein Film Voltammetry. Journal of the American Chemical Society, 136(31), 10821-11196. doi:10.1021/ja505126v.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0026-B1A7-F Version Permalink: https://hdl.handle.net/21.11116/0000-000C-2733-F
Genre: Journal Article

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 Creators:
Meyer, Thomas1, Author
Melin, Frédéric1, Author
Xie, Hao2, Author                 
von der Hocht, Iris2, Author           
Choi, Sylvia K.3, Author
Noor, Mohamed R.4, Author
Michel, Hartmut2, Author                 
Gennis, Robert B3, Author
Soulimane, Tewfik4, Author
Hellwig, Petra1, Author
Affiliations:
1Chimie de la Matière Complexe UMR 7140, Laboratoire de Bioélectrochimie et Spectroscopie, CNRS-Universitéde Strasbourg, 1 rue Blaise Pascal, 67070 Strasbourg, France, ou_persistent22              
2Department of Molecular Membrane Biology, Max Planck Institute of Biophysics, Max Planck Society, ou_2068290              
3Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States, ou_persistent22              
4Department of Chemical & Environmental Sciences and Materials & Surface Science Institute (MSSI), University of Limerick, Limerick, Ireland, ou_persistent22              

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 Abstract: Cytochrome aa3 from Paracoccus denitrificans and cytochrome ba3 from Thermus thermophilus, two distinct members of the heme−copper oxidase superfamily, were immobilized on electrodes modified with gold nanoparticles. This procedure allowed us to achieve direct electron transfer between the enzyme and the gold nanoparticles and to obtain evidence for different electrocatalytic properties of the two enzymes. The pH dependence and thermostability reveal that the enzymes are highly adapted to their native environments. These results suggest that evolution resulted in different solutions to the common problem of electron transfer to oxygen.

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Language(s): eng - English
 Dates: 20142014-052014-07-232014-08-06
 Publication Status: Issued
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/ja505126v
 Degree: -

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Title: Journal of the American Chemical Society
  Other : J. Am. Chem. Soc.
  Abbreviation : JACS
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: 4 Volume / Issue: 136 (31) Sequence Number: - Start / End Page: 10821 - 11196 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870