scholarly journals Elucidating the mechanisms of coupled electron transfer and catalytic reactions by protein film voltammetry

2006 ◽  
Vol 1757 (4) ◽  
pp. 225-239 ◽  
Author(s):  
Judy Hirst
Keyword(s):  
Electron Transfer ◽  
Catalytic Reactions ◽  
Protein Film ◽  
Protein Film Voltammetry

scholarly journals Mind the gap: diversity and reactivity relationships among multihaem cytochromes of the MtrA/DmsE family

2012 ◽  
Vol 40 (6) ◽  
pp. 1268-1273 ◽  
Author(s):  
Kathryn D. Bewley ◽  
Mackenzie A. Firer-Sherwood ◽  
Jee-Young Mock ◽  
Nozomi Ando ◽  
Catherine L. Drennan ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Membrane Proteins ◽  
Outer Membrane ◽  
Outer Membrane Proteins ◽  
Evolutionary Relationship ◽  
Shewanella Oneidensis ◽  
Anaerobic Respiration ◽  
Electron Acceptors ◽  
Protein Film ◽  
Protein Film Voltammetry

Shewanella oneidensis MR-1 has the ability to use many external terminal electron acceptors during anaerobic respiration, such as DMSO. The pathway that facilitates this electron transfer includes the decahaem cytochrome DmsE, a paralogue of the MtrA family of decahaem cytochromes. Although both DmsE and MtrA are decahaem cytochromes implicated in the long-range electron transfer across a ~300 Å (1 Å=0.1 nm) wide periplasmic ‘gap’, MtrA has been shown to be only 105 Å in maximal length. In the present paper, DmsE is further characterized via protein film voltammetry, revealing that the electrochemistry of the DmsE haem cofactors display macroscopic potentials lower than those of MtrA by 100 mV. It is possible this tuning of the redox potential of DmsE is required to shuttle electrons to the outer-membrane proteins specific to DMSO reduction. Other decahaem cytochromes found in S. oneidensis, such as the outer-membrane proteins MtrC, MtrF and OmcA, have been shown to have electrochemical properties similar to those of MtrA, yet possess a different evolutionary relationship.

Protein film voltammetry and co-factor electron transfer dynamics in spinach photosystem II core complex

2013 ◽  
Vol 120 (1-2) ◽  
pp. 153-167 ◽  
Author(s):  
Yun Zhang ◽  
Nikki Magdaong ◽  
Harry A. Frank ◽  
James F. Rusling
Keyword(s):  
Electron Transfer ◽  
Photosystem Ii ◽  
Core Complex ◽  
Protein Film ◽  
Protein Film Voltammetry

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

2014 ◽  
Vol 136 (31) ◽  
pp. 10854-10857 ◽  
Author(s):  
Thomas Meyer ◽  
Frédéric Melin ◽  
Hao Xie ◽  
Iris von der Hocht ◽  
Sylvia K. Choi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Protein Film ◽  
Protein Film Voltammetry ◽  
Terminal Oxidases ◽  
Transfer Processes ◽  
Electron Transfer Processes ◽  
Different Origin

The electron-transfer intermediates of the oxygen evolution reaction (OER) as polarons by in situ spectroscopy

2021 ◽  
Author(s):  
Hanna Lyle ◽  
Suryansh Singh ◽  
Michael Paolino ◽  
Ilya Vinogradov ◽  
Tanja Cuk
Keyword(s):  
Electron Transfer ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Catalytic Reactions ◽  
In Situ Spectroscopy ◽  
Chemical Bonds

The conversion of diffusive forms of energy (electrical and light) into short, compact chemical bonds by catalytic reactions regularly involves moving a carrier from an environment that favors delocalization to one that favors localization.

Protein Film Voltammetry ofRhodobacterCapsulatusXanthine Dehydrogenase

2003 ◽  
Vol 125 (50) ◽  
pp. 15352-15358 ◽  
Author(s):  
Kondo François Aguey-Zinsou ◽  
Paul V. Bernhardt ◽  
Silke Leimkühler
Keyword(s):  
Protein Film ◽  
Protein Film Voltammetry

scholarly journals Electron transfer and catalytic reactions of cytochrome bc1

2012 ◽  
Vol 1817 ◽  
pp. S4
Author(s):  
M. Czapla ◽  
A. Borek ◽  
M. Sarewicz ◽  
A. Osyczka
Keyword(s):  
Electron Transfer ◽  
Catalytic Reactions ◽  
Cytochrome Bc1
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