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Keywords: electron transfer
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Articles
Regulation of electron transfer in the terminal step of the respiratory chain
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2023) 51 (4): 1611–1619.
Published: 06 July 2023
...Wataru Sato; Koichiro Ishimori In mitochondria, electrons are transferred along a series of enzymes and electron carriers that are referred to as the respiratory chain, leading to the synthesis of cellular ATP. The series of the interprotein electron transfer (ET) reactions is terminated...
Articles
Approaches to single-molecule studies of metalloprotein electron transfer using scanning probe-based techniques
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2018) 46 (1): 1–9.
Published: 22 December 2017
...Martin Elliott; D. Dafydd Jones The single-molecule properties of metalloproteins have provided an intensely active research area in recent years. This brief review covers some of the techniques used to prepare, measure and analyse the electron transfer properties of metalloproteins, concentrating...
Articles
The alternative oxidases: simple oxidoreductase proteins with complex functions
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2013) 41 (5): 1305–1311.
Published: 23 September 2013
... 2013 The Authors 2013 di-iron carboxylate protein electron transfer protein engineering respiration ubiquinol oxidase It is generally recognized that the distribution of the AOX (alternative oxidase) is substantially wider than previously thought [ 1 ]. In addition to being ubiquitous...
Articles
Does bioelectrochemical cell configuration and anode potential affect biofilm response?
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2012) 40 (6): 1308–1314.
Published: 21 November 2012
...Amit Kumar; Krishna Katuri; Piet Lens; Dónal Leech Electrochemical gradients are the backbone of basic cellular functions, including chemo-osmotic transport and ATP synthesis. Microbial growth, terminal respiratory proteins and external electron transfer are major pathways competing for electrons...
Articles
Mind the gap: diversity and reactivity relationships among multihaem cytochromes of the MtrA/DmsE family
Available to PurchaseKathryn D. Bewley, Mackenzie A. Firer-Sherwood, Jee-Young Mock, Nozomi Ando, Catherine L. Drennan, Sean J. Elliott
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2012) 40 (6): 1268–1273.
Published: 21 November 2012
... 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...
Includes: Supplementary data
Articles
Microscale gradients and their role in electron-transfer mechanisms in biofilms
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2012) 40 (6): 1315–1318.
Published: 21 November 2012
...Haluk Beyenal; Jerome T. Babauta The chemical and electrochemical gradients in biofilms play a critical role in electron-transfer processes between cells and a solid electron acceptor. Most of the time, electron-transfer processes have been investigated in the bulk phase, for a biofilm electrode...
Articles
Electron Transport at the Microbe–Mineral Interface: a synthesis of current research challenges
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2012) 40 (6): 1163–1166.
Published: 21 November 2012
... they are insoluble in water, they cannot enter the bacterial cells. So, to exploit these electron sinks and sources, specific respiratory electron-transfer mechanisms must overcome the physical limitations associated with electron transfer between a microbe and extracellular metal oxides. Recent microbiological...
Articles
On conducting electron traffic across the periplasm
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2012) 40 (6): 1178–1180.
Published: 21 November 2012
... electrons could be conducted across this compartment in Shewanella . Recent structural biology work in Shewanella has focused on components of the Mtr respiratory pathway. The structure of MtrF, a paralogue of MtrC in S. oneidensis , has provided insight into electron-transfer reactions beyond the OM...
Articles
Exploring the biochemistry at the extracellular redox frontier of bacterial mineral Fe(III) respiration
Available to PurchaseDavid J. Richardson, Marcus J. Edwards, Gaye F. White, Nanakow Baiden, Robert S. Hartshorne, Jim Fredrickson, Liang Shi, John Zachara, Andrew J. Gates, Julea N. Butt, Thomas A. Clarke
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2012) 40 (3): 493–500.
Published: 22 May 2012
.... These extracellular proteins are charged with electrons provided by an inter-membrane electron-transfer pathway that links the extracellular face of the outer membrane with the inner cytoplasmic membrane and thereby intracellular electron sources. In the present paper, we consider the common structural features...
Articles
Engineering oxidoreductases: maquette proteins designed from scratch
Available to PurchaseBruce R. Lichtenstein, Tammer A. Farid, Goutham Kodali, Lee A. Solomon, J.L. Ross Anderson, Molly M. Sheehan, Nathan M. Ennist, Bryan A. Fry, Sarah E. Chobot, Chris Bialas, Joshua A. Mancini, Craig T. Armstrong, Zhenyu Zhao, Tatiana V. Esipova, David Snell, Sergei A. Vinogradov, Bohdana M. Discher, Christopher C. Moser, P. Leslie Dutton
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2012) 40 (3): 561–566.
Published: 22 May 2012
... maquettes to functional assembly in membranes, on nanostructured titania, and to organize on selected planar surfaces and materials. These protein maquettes engage in light harvesting and energy transfer, in photochemical charge separation and electron transfer, in stable dioxygen binding and in simple...
Articles
Tied down: tethering redox proteins to the outer membrane in Neisseria and other genera
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2011) 39 (6): 1895–1899.
Published: 21 November 2011
... and orientation of the globular domains by these tethers favours the formation of electron-transfer complexes for entropic reasons. The attachment to the outer membrane may also affect the exposure of the host to redox proteins with a moonlighting function in the host–microbe interaction, thus affecting the host...
Articles
The petite purple photosynthetic powerpack
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2009) 37 (2): 400–407.
Published: 20 March 2009
... subjected to an intensive spectroscopic scrutiny, coupled with genetic manipulation and structural studies, that has revealed many of the molecular and mechanistic details of biological energy transfer, electron transfer and coupled proton translocation. This review provides a short overview...
Articles
Mechanism of CB1954 reduction by Escherichia coli nitroreductase
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2009) 37 (2): 413–418.
Published: 20 March 2009
...-[aziridin-1-yl]-2,4-dinitrobenzamide (CB1954) cancer treatment electron transfer Escherichia coli nitroreductase hydride transfer virus-directed enzyme prodrug therapy (VDEPT) VDEPT (virus-directed enzyme prodrug therapy) is a gene therapy approach to cancer treatment aimed at overcoming...
Articles
The bacterial respiratory nitric oxide reductase
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2009) 37 (2): 392–399.
Published: 20 March 2009
... Biochemical Society 2009 electron transfer haem-copper oxidase membrane protein nitric oxide nitrous oxide proton transfer The volume of nitrous oxide (N 2 O) discharged into the atmosphere each year is lower compared with carbon dioxide (CO 2 ) and methane. However, because it persists...
Articles
Tryptophan 13 C nuclear-spin polarization generated by intraprotein electron transfer in a LOV2 domain of the blue-light receptor phototropin
Available to PurchaseWolfgang Eisenreich, Markus Fischer, Werner Römisch-Margl, Monika Joshi, Gerald Richter, Adelbert Bacher, Stefan Weber
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2009) 37 (2): 382–386.
Published: 20 March 2009
... on nuclear-spin polarized tryptophan resonances that are generated by light-induced intraprotein electron transfer to the FMN cofactor. The spectra are discussed with respect to earlier data obtained from 13 C-NMR experiments on unlabelled LOV2 domains that have been reconstituted with FMN 13 C isotopologues...
Articles
Molecular architecture of the proton diode of cytochrome c oxidase
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2008) 36 (6): 1169–1174.
Published: 19 November 2008
... and, in addition, it is also linked to proton pumping across the membrane. Thus the Cyt c O moves an equivalent of two positive charges across the membrane per electron transferred to O 2 . Proton transfer through Cyt c O must be controlled by the protein to prevent leaks, which would dissipate the proton...
Articles
Flavocytochrome P450 BM3 and the origin of CYP102 fusion species
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2006) 34 (6): 1173–1177.
Published: 25 October 2006
... arrangement enables efficient electron transfer within the enzyme and a catalytic efficiency that cannot be matched in P450 systems from higher organisms. P450 BM3's potential for industrially relevant chemical transformations is now recognized, and variants with biotechnological applications have been...
Articles
Proton transfer in bacterial nitric oxide reductase
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2006) 34 (1): 188–190.
Published: 20 January 2006
... NOR and the chemically less reactive oxidant O 2 [Flock, Watmough and Ädelroth (2005) Biochemistry 44 , 10711–10719]. When fully reduced NOR reacts with O 2 , proton-coupled electron transfer occurs in a reaction that is rate-limited by internal proton transfer from a group with a p K a of 6.6...
Articles
Role of electron-transfer quenching of chlorophyll fluorescence by carotenoids in non-photochemical quenching of green plants
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2005) 33 (4): 858–862.
Published: 01 August 2005
...) of NPQ involves the formation of a quenching complex. Recently, we have studied the influence of formation of a zeaxanthin–chlorophyll complex on the excited states of the pigments using high-level quantum chemical methodology. In the case of complex formation, electron-transfer quenching of chlorophyll...
Articles
Molecular and thermodynamic bioenergetics
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2005) 33 (4): 825–828.
Published: 01 August 2005
... thermodynamics relationships in systems biology. The future lies with the second as the first is nearing completion. 1 email [email protected] 22 3 2005 © 2005 The Biochemical Society 2005 bioenergetics of evolution chemical elements in evolution electron transfer laws...
Articles
Flavoenzyme catalysed oxidation of amines: roles for flavin and protein-based radicals
Available to PurchaseS.E. Rigby, J. Basran, J.P. Combe, A.W. Mohsen, H. Toogood, A. van Thiel, M.J. Sutcliffe, D. Leys, A.W. Munro, N.S. Scrutton
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2005) 33 (4): 754–757.
Published: 01 August 2005
... in the oxidation of amines is discussed. 1 To whom correspondence should be addressed (email [email protected] ). 15 3 2005 © 2005 The Biochemical Society 2005 amine catalysis electron transfer flavoprotein oxidation radical Our group has studied the mechanisms of amine oxidation...
Articles
Biodiversity of cytochrome P450 redox systems
Available to PurchaseK.J. McLean, M. Sabri, K.R. Marshall, R.J. Lawson, D.G. Lewis, D. Clift, P.R. Balding, A.J. Dunford, A.J. Warman, J.P. McVey, A.-M. Quinn, M.J. Sutcliffe, N.S. Scrutton, A.W. Munro
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2005) 33 (4): 796–801.
Published: 01 August 2005
... tuberculosis . 13 4 2005 © 2005 The Biochemical Society 2005 biodiversity cytochrome P450 electron transfer ferredoxin flavoprotein redox partner system P450s (cytochrome P450 mono-oxygenases) are an ever-growing family of enzymes that show extraordinary diversity...
Articles
Rewiring photosynthesis: engineering wrong-way electron transfer in the purple bacterial reaction centre
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2005) 33 (4): 851–857.
Published: 01 August 2005
... has been partially successful in rerouting electron transfer along the normally inactive B-branch, allowing comparison of the kinetics of equivalent electron transfer reactions on the two branches. Both the primary and secondary electron transfer steps on the B-branch appear to be considerably slower...
Articles
A semi-empirical molecular orbital scheme to study electron transfer in iron–sulphur proteins
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2005) 33 (1): 20–21.
Published: 01 February 2005
.... Am. Chem. Soc. 2001 123 3734 3742 1 To whom correspondence should be addressed (email [email protected] ). 30 9 2004 © 2005 The Biochemical Society 2005 density functional theory (DFT) electron transfer iron-only hydrogenase iron–sulphur protein PM3...
Articles
The molecular machinery of Keilin's respiratory chain
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2003) 31 (6): 1095–1105.
Published: 01 December 2003
... of mitochondria in health and disease, have prompted a new era of interest in mitochondrial function. An historical perspective In his historical account of the discovery of the respiratory chain and cytochromes, Keilin [1] modestly described his Key words: electron transfer, energy coupling, Fourier-transform...
Articles
Calmodulin-dependent regulation of mammalian nitric oxide synthase
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2003) 31 (3): 502–505.
Published: 01 June 2003
... binding of calmodulin (CaM) at elevated intracellular Ca 2+ levels to produce NO as part of a number of cell signalling pathways. CaM binds to the linker region between the two domains and activates the enzyme by inducing intramolecular electron transfer. Protein-engineering experiments have shown...
Articles
Electron transfer in human cytochrome P450 reductase
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2003) 31 (3): 497–501.
Published: 01 June 2003
... and studies by site-directed mutagenesis have enabled detailed characterization of the mechanism of electron transfer using stopped-flow and equilibrium-perturbation methods, and redox potentiometry. These studies and the mechanism of electron transfer in CPR are reported herein. 1 To whom correspondence...
Articles
Novel domain packing in the crystal structure of a thiosulphate-oxidizing enzyme
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2002) 30 (4): 638–642.
Published: 01 August 2002
... bacterium Rhodovulum sulfidophilum is a heterodimeric c -type cytochrome that is involved in the oxidation of thiosulphate and sulphide. The recently solved crystal structure of the SoxAX complex represents the first structurally characterized example of a productive electron transfer complex between...
Articles
Biosynthesis of iron-sulphur clusters is a complex and highly conserved process
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2002) 30 (4): 680–685.
Published: 01 August 2002
...J. Frazzon; J. R. Fick; D. R. Dean Iron-sulphur ([Fe-S]) clusters are simple inorganic prosthetic groups that are contained in a variety of proteins having functions related to electron transfer, gene regulation, environmental sensing and substrate activation. In spite of their simple structures...
Articles
Evolution of bioinorganic motifs in P450-containing systems
Available to Purchase
Journal:
Biochemical Society Transactions
Biochem Soc Trans (2001) 29 (2): 139–147.
Published: 01 May 2001
[email protected] ) 23 11 2000 © 2001 Biochemical Society 2001 cytochrome b 5 electron transfer ferredoxin flavoprotein genome 3D, three-dimensional CPR, NADPH: cytochrome P450 reductase AdR, NADPH: adrenodoxin reductase Adx, adrenodoxin b5R, NADH: cytochrome b 5 reductase...
Articles
The Chemical and Biological Versatility of Riboflavin
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Journal:
Biochemical Society Transactions
Biochem Soc Trans (2000) 28 (4): 283–296.
Published: 01 August 2000
...V. Massey Since their discovery and chemical characterization in the 1930s, flavins have been recognized as being capable of both one- and two-electron transfer processes, and as playing a pivotal role in coupling the two-electron oxidation of most organic substrates to the one-electron transfers...
