scholarly journals Experimental approaches to studying biological electron transfer

1985 ◽  
Vol 62 (11) ◽  
pp. 932 ◽  
Author(s):  
Robert A. Scott ◽  
A. Grant Mauk ◽  
Harry B. Gray
Keyword(s):  
Electron Transfer ◽  
Approaches To Studying ◽  
Experimental Approaches ◽  
Biological Electron Transfer

Evolution of moonlighting proteins: insight from yeasts

2014 ◽  
Vol 42 (6) ◽  
pp. 1715-1719 ◽  
Author(s):  
Carlos Gancedo ◽  
Carmen-Lisset Flores ◽  
Juana M. Gancedo
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Present Article ◽  
Catabolite Repression ◽  
Kluyveromyces Lactis ◽  
Approaches To Studying ◽  
Moonlighting Proteins ◽  
Experimental Approaches ◽  
Gal Genes

The present article addresses the possibilities offered by yeasts to study the problem of the evolution of moonlighting proteins. It focuses on data available on hexokinase from Saccharomyces cerevisiae that moonlights in catabolite repression and on galactokinase from Kluyveromyces lactis that moonlights controlling the induction of the GAL genes. Possible experimental approaches to studying the evolution of moonlighting hexose kinases are suggested.

Quantum effects in biological electron transfer

2012 ◽  
Vol 14 (17) ◽  
pp. 5902 ◽  
Author(s):  
Aurélien de la Lande ◽  
Nathan S. Babcock ◽  
Jan Řezáč ◽  
Bernard Lévy ◽  
Barry C. Sanders ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Quantum Effects ◽  
Biological Electron Transfer

scholarly journals One-megadalton metalloenzyme complex inGeobacter metallireducensinvolved in benzene ring reduction beyond the biological redox window

2019 ◽  
Vol 116 (6) ◽  
pp. 2259-2264 ◽  
Author(s):  
Simona G. Huwiler ◽  
Claudia Löffler ◽  
Sebastian E. L. Anselmann ◽  
Hans-Joachim Stärk ◽  
Martin von Bergen ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Benzene Ring ◽  
Active Site ◽  
Anaerobic Bacterium ◽  
Class Ii ◽  
High Molecular Mass ◽  
Redox Potentials ◽  
Geobacter Metallireducens ◽  
Redox Couples ◽  
Biological Electron Transfer

Reversible biological electron transfer usually occurs between redox couples at standard redox potentials ranging from +0.8 to −0.5 V. Dearomatizing benzoyl-CoA reductases (BCRs), key enzymes of the globally relevant microbial degradation of aromatic compounds at anoxic sites, catalyze a biological Birch reduction beyond the negative limit of this redox window. The structurally characterized BamBC subunits of class II BCRs accomplish benzene ring reduction at an active-site tungsten cofactor; however, the mechanism and components involved in the energetic coupling of endergonic benzene ring reduction have remained hypothetical. We present a 1-MDa, membrane-associated, Bam[(BC)2DEFGHI]2complex from the anaerobic bacteriumGeobacter metallireducensharboring 4 tungsten, 4 zinc, 2 selenocysteines, 6 FAD, and >50 FeS cofactors. The results suggest that class II BCRs catalyze electron transfer to the aromatic ring, yielding a cyclic 1,5-dienoyl-CoA via two flavin-based electron bifurcation events. This work expands our knowledge of energetic couplings in biology by high-molecular-mass electron bifurcating machineries.

scholarly journals iBET: Immersive visualization of biological electron-transfer dynamics

2016 ◽  
Vol 65 ◽  
pp. 94-99 ◽  
Author(s):  
C. Masato Nakano ◽  
Erick Moen ◽  
Hye Suk Byun ◽  
Heng Ma ◽  
Bradley Newman ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Immersive Visualization ◽  
Biological Electron Transfer

Role of conducting polymeric interfaces in promoting biological electron transfer

1997 ◽  
Vol 12 (8) ◽  
pp. 721-727 ◽  
Author(s):  
Karl S. Ryder ◽  
David G. Morris ◽  
Jonathan M. Cooper
Keyword(s):  
Electron Transfer ◽  
Biological Electron Transfer
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