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1-39 of 39
Keywords: electron transfer
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Articles
Journal:
Biochemical Journal
Biochem J (2024) 481 (24): 2017–2036.
Published: 23 December 2024
...Pilar C. Portela; Marta A. Silva; Alexandre Almeida; Gonçalo F. Damas; Carlos A. Salgueiro Geobacter ’s unique ability to perform extracellular electron transfer (EET) to electrodes in microbial fuel cells (MFCs) has sparked the implementation of sustainable production of electrical energy. However...
Includes: Supplementary data
Articles
In Collection
Awards
Journal:
Biochemical Journal
Biochem J (2023) 480 (5): 319–333.
Published: 15 March 2023
... and annotated. Substrates and cofactors are indicated. Electron transfer path is indicated by light blue arrow. Quinone cavity is shown as grey surface. ( B ) Structure of the mammalian (ovine) complex I [ 25 ] with 14 core subunits coloured and annotated and the remaining supernumerary subunits shown in grey...
Includes: Multimedia, Supplementary data
Articles
Jessie Branch, Badri S. Rajagopal, Alessandro Paradisi, Nick Yates, Peter J. Lindley, Jake Smith, Kristian Hollingsworth, W. Bruce Turnbull, Bernard Henrissat, Alison Parkin, Alan Berry, Glyn R. Hemsworth
Journal:
Biochemical Journal
Biochem J (2021) 478 (14): 2927–2944.
Published: 28 July 2021
... the electron transfer to the LPMO, a direct interaction between enzymes must occur [ 52 , 53 ]. In silico docking [ 52 , 53 ] and protein–protein interaction studies [ 54 ] so far suggest that these enzyme partners directly contact the copper ion to allow its reduction, but the transient nature...
Includes: Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2021) 478 (14): 2871–2887.
Published: 23 July 2021
... is particularly relevant if observed in the physiological pH range, as it may contribute to the electrochemical gradient for ATP synthesis. A constitutively produced family of five triheme cytochromes (PpcA−E) from the bacterium Geobacter sulfurreducens plays a crucial role in extracellular electron transfer...
Includes: Supplementary data
Articles
Ido Caspy, Mariia Fadeeva, Sebastian Kuhlgert, Anna Borovikova-Sheinker, Daniel Klaiman, Gal Masrati, Friedel Drepper, Nir Ben-Tal, Michael Hippler, Nathan Nelson
Journal:
Biochemical Journal
Biochem J (2021) 478 (12): 2371–2384.
Published: 23 June 2021
...-EM, our data provide novel mechanistic insights into binding and electron transfer between PSI and Pc. Structural data at 2.74 Å resolution reveals strong hydrophobic interactions in the plant PSI–Pc ternary complex, leading to exclusion of water molecules from PsaA–PsaB/Pc interface once the PSI–Pc...
Includes: Multimedia, Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2020) 477 (9): 1631–1650.
Published: 05 May 2020
...Felix Buchert; Laura Mosebach; Philipp Gäbelein; Michael Hippler Proton gradient regulation 5 (PGR5) is involved in the control of photosynthetic electron transfer, but its mechanistic role is not yet clear. Several models have been proposed to explain phenotypes such as a diminished steady-state...
Includes: Supplementary data
Articles
Wataru Sato, Seiji Hitaoka, Takeshi Uchida, Kyoko Shinzawa-Itoh, Kazunari Yoshizawa, Shinya Yoshikawa, Koichiro Ishimori
Journal:
Biochemical Journal
Biochem J (2020) 477 (8): 1565–1578.
Published: 29 April 2020
...Wataru Sato; Seiji Hitaoka; Takeshi Uchida; Kyoko Shinzawa-Itoh; Kazunari Yoshizawa; Shinya Yoshikawa; Koichiro Ishimori In the electron transfer (ET) reaction from cytochrome c (Cyt c ) to cytochrome c oxidase (C c O), we determined the number and sites of the hydration water released from...
Includes: Supplementary data
Articles
Takaaki Suzuki, Akito Nishizawa, Masashi Kikuchi, Chihiro Nonaka, Mariko Komuro, Miki Nakayama, Yasuhiro Kashino, Masao Fukuda, Shigenobu Kimura
Journal:
Biochemical Journal
Biochem J (2019) 476 (23): 3615–3630.
Published: 10 December 2019
... dechlorination and aerobic oxidative degradation for lower-chlorinated PCBs [ 4 , 5 ]. bioremediation cyanobacteria electron transfer ferredoxin reductase Rieske-type ferredoxin thioredoxin reductase © 2019 The Author(s). Published by Portland Press Limited on behalf of the Biochemical Society...
Includes: Supplementary data
Articles
In Collection
Awards
Journal:
Biochemical Journal
Biochem J (2019) 476 (15): 2173–2190.
Published: 09 August 2019
...Cvetelin Vasilev; Guy E. Mayneord; Amanda A. Brindley; Matthew P. Johnson; C. Neil Hunter The reversible docking of small, diffusible redox proteins onto a membrane protein complex is a common feature of bacterial, mitochondrial and photosynthetic electron transfer (ET) chains. Spectroscopic...
Includes: Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2018) 475 (17): 2861–2875.
Published: 14 September 2018
... of five periplasmic triheme cytochromes, which are important to bridge the electron transfer from the cytoplasmic donors to the extracellular acceptors. Using NMR and visible spectroscopic techniques, a detailed thermodynamic characterization of PpcA was obtained, including the determination of the heme...
Includes: Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2017) 474 (15): 2563–2572.
Published: 18 July 2017
... of a substrate protein that binds to the surface of MauG and is oxidized by the high-valent hemes via long-range electron transfer. Ascorbate was also shown to prolong the activity of a P107V MauG variant that is more prone to inactivation. A previously unknown ascorbate peroxidase activity of MauG...
Articles
Redox- and pH-linked conformational changes in triheme cytochrome PpcA from Geobacter sulfurreducens
Journal:
Biochemical Journal
Biochem J (2017) 474 (2): 231–246.
Published: 06 January 2017
... response around −150 mV [ 35 – 37 ], which can be driven by PpcA, as the protein is functionally active at this redox potential [ 25 ]. electron transfer Geobacter multiheme cytochrome NMR solution structure Multiheme cytochromes are key players in extracellular electron transfer (EET...
Includes: Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2016) 473 (12): 1769–1775.
Published: 10 June 2016
... that this process occurs via two sequential long-range electron transfer (ET) reactions from methionine to the haems. The first ET is coupled to proton transfer (PT) to the haems from solvent via an ordered water network. The second ET is coupled to PT at the methionine site and occurs during the oxidation...
Articles
Journal:
Biochemical Journal
Biochem J (2016) 473 (1): 67–72.
Published: 09 December 2015
...Brian A. Dow; Victor L. Davidson The electron transfer (ET) properties of two types of high-valent hemes were studied within the same protein matrix; the bis -Fe IV state of MauG and the Compound I state of Y294H MauG. The latter is formed as a consequence of mutation of the tyrosine which forms...
Articles
Journal:
Biochemical Journal
Biochem J (2015) 469 (2): 279–288.
Published: 06 July 2015
... is that only certain members need to be oxidized or reduced to maintain function. disulfide formation electron transfer endoplasmic reticulum protein disulfide isomerase redox potential thiol-disulfide exchange A family of proteins, collectively termed the protein disulfide isomerases (PDIs...
Articles
Akito Nishizawa, Ayaka Harada, Miki Senda, Yuka Tachihara, Daisuke Muramatsu, Shinya Kishigami, Shigemasa Mori, Keisuke Sugiyama, Toshiya Senda, Shigenobu Kimura
Journal:
Biochemical Journal
Biochem J (2014) 462 (2): 257–265.
Published: 07 August 2014
... a method combining structure-based systematic mutations and site-directed random mutagenesis. biphenyl degradation electron transfer flavoprotein protein design random mutagenesis specificity prediction In the large-scale production of biological compounds using bacteria, redox balance...
Includes: Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2013) 456 (1): 129–137.
Published: 24 October 2013
...-steady-state reaction phase during which reaction intermediates of a processive enzyme reaction accumulate. electron transfer haem MauG methylamine dehydrogenase precursor protein radical tryptophan tryptopylquinone The dihaem enzyme MauG [ 1 ] catalyses the biosynthesis of the TTQ...
Articles
Journal:
Biochemical Journal
Biochem J (2013) 450 (3): 607–617.
Published: 28 February 2013
...-deshielded) conformational state. Moreover, computer simulations of the kinetic traces of cytochrome c reduction by the mutants suggest that they have higher conformational transition rates (1.5–4-fold) and rates of interflavin electron transfer (1.5–2-fold) relative to wild-type nNOSred. We conclude...
Includes: Supplementary data
Articles
Sophie J. Marritt, Thomas G. Lowe, Jordan Bye, Duncan G. G. McMillan, Liang Shi, Jim Fredrickson, John Zachara, David J. Richardson, Myles R. Cheesman, Lars J. C. Jeuken, Julea N. Butt
Journal:
Biochemical Journal
Biochem J (2012) 444 (3): 465–474.
Published: 29 May 2012
... (email [email protected] ). 1 2 2012 12 3 2012 29 3 2012 29 3 2012 © The Authors Journal compilation © 2012 Biochemical Society 2012 cytochrome electron paramagnetic resonance (EPR) electron transfer magnetic circular dichroism (MCD) mineral respiration quinol...
Includes: Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2012) 443 (2): 505–514.
Published: 27 March 2012
... into NO and citrulline. Both steps are thought to proceed via similar mechanisms in which the cofactor BH 4 (tetrahydrobiopterin) activates dioxygen at the haem site by electron transfer. The subsequent events are poorly understood due to the lack of stable intermediates. By analogy with cytochrome P450, a haem-iron oxo...
Includes: Supplementary data
Articles
Filipe Folgosa, Cristina M. Cordas, Joana A. Santos, Alice S. Pereira, José J. G. Moura, Pedro Tavares, Isabel Moura
Journal:
Biochemical Journal
Biochem J (2011) 438 (3): 485–494.
Published: 26 August 2011
... constants for the electron transfer between reduced rubredoxin and the different SOR forms were determined to be 2.8×10 7 M −1 ·s −1 and 1.3×10 6 M −1 ·s −1 for SOR Fe(IIII)-Fe(II) and for SOR Fe(IIII)-Fe(III) forms respectively, and 3.2×10 6 M −1 ·s −1 for the SOR Zn(II)-Fe(III) form. The results obtained...
Includes: Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2011) 435 (1): 197–206.
Published: 15 March 2011
... is conserved in our chimaeric enzymes, whereas the recognition, interactions and positioning of both catalytic domains are probably modified. The main consequences of the chimaerogenesis are a decrease in the internal electron-transfer rate between both flavins correlated with changes in the geometry...
Includes: Supplementary data
Articles
Jesús Tejero, Ashis Biswas, Mohammad Mahfuzul Haque, Zhi-Qiang Wang, Craig Hemann, Cornelius L. Varnado, Zachary Novince, Russ Hille, Douglas C. Goodwin, Dennis J. Stuehr
Journal:
Biochemical Journal
Biochem J (2011) 433 (1): 163–174.
Published: 15 December 2010
... these changes combine to alter its catalytic behaviour. electron transfer flavoprotein haemprotein mesohaem nitric oxide nitric oxide synthase (NOS) NO (nitric oxide) is a signalling molecule with a wide range of functions in biology [ 1 ]. In animals NO is synthesized from L -Arg ( L -arginine...
Articles
Journal:
Biochemical Journal
Biochem J (2010) 432 (3): 485–494.
Published: 25 November 2010
... coefficient=1.5±0.3, and 75±4% of the CYP3A4 can be reduced by NADPH in the presence of testosterone. Transfer of the first electron from CPR to CYP3A4 was measured by stopped-flow, trapping the reduced CYP3A4 as its Fe(II)–CO complex and measuring the characteristic absorbance change. Rapid electron transfer...
Includes: Supplementary data
Articles
Hazel M. Girvan, Colin W. Levy, Paul Williams, Karl Fisher, Myles R. Cheesman, Stephen E. J. Rigby, David Leys, Andrew W. Munro
Journal:
Biochemical Journal
Biochem J (2010) 427 (3): 455–466.
Published: 14 April 2010
...-to-haem electron transfer ~2-fold (to 473 s −1 ) in I401E, and resulted in stabilization of Fe(II)O 2 complexes in the I401E and L86E P450s. EPR demonstrated some iron co-ordination by glutamate carboxylate in L86E and F261E mutants, indicating structural plasticity in the haem domains. The Fe(II)O 2...
Includes: Supplementary data
Articles
Muna Sabri, Adrian J. Dunford, Kirsty J. McLean, Rajasekhar Neeli, Nigel S. Scrutton, David Leys, Andrew W. Munro
Journal:
Biochemical Journal
Biochem J (2009) 417 (1): 103–114.
Published: 12 December 2008
..., although the limiting flavin reduction rate constant was similar in all mutants. The R199A mutation abolished electron transfer between hydroquinone FprA and NADP + , while this reaction progressed (via an FADH 2 -NADP + charge-transfer intermediate) for R200A FprA, albeit more slowly ( k lim =58.1 s −1...
Includes: Supplementary data
Articles
Rajasekhar Neeli, Muna Sabri, Kirsty J. McLean, Adrian J. Dunford, Nigel S. Scrutton, David Leys, Andrew W. Munro
Journal:
Biochemical Journal
Biochem J (2008) 411 (3): 563–570.
Published: 14 April 2008
... ). 20 9 2007 29 1 2008 31 1 2008 31 1 2008 © The Authors Journal compilation © 2008 Biochemical Society 2008 adrenodoxin reductase coenzyme selectivity electron transfer flavoprotein reductase A Mycobacterium tuberculosis Restriction enzymes and DNA ligase were...
Includes: Supplementary data
Articles
Journal:
Biochemical Journal
Biochem J (2007) 406 (1): 125–129.
Published: 26 July 2007
... 2007 3 5 2007 © The Authors Journal compilation © 2007 Biochemical Society 2007 brain mitochondrion electron transfer hydrogen peroxide production NADH:ubiquinone oxidoreductase (Complex I) reactive oxygen species succinate Mitochondria are the major site of ROS (reactive...
Articles
Journal:
Biochemical Journal
Biochem J (2005) 388 (3): 869–878.
Published: 07 June 2005
... and His 65 in BphA3 are the ligands of the Rieske-type [2Fe-2S] cluster. However, the requirement and role of the histidine ligands of the Rieske-type [2Fe-2S] cluster in BphA3 in electron transfer from BphA4 have not been elucidated. In the present study, a high-level expression system for the WT...
Articles
Journal:
Biochemical Journal
Biochem J (2004) 378 (1): 45–51.
Published: 15 February 2004
...Peter B. CROWLEY; David M. HUNTER; Katsuko SATO; William McFARLANE; Christopher DENNISON In general, inter-protein electron transfer proceeds via the formation of transient complexes. The initial stage of the interaction between plastocyanin (PCu) and cytochrome f (cyt f ) from plants is mediated...
Articles
Journal:
Biochemical Journal
Biochem J (2003) 374 (3): 761–766.
Published: 15 September 2003
... substrate. By contrast, with p -methoxythioanisole, the data imply formation of an intermediate ternary complex comprising compound II, radical cation and neutral substrate, such that a chain of electron transfer reactions starting from neutral molecule and progressing to oxidized haem via substrate radical...
Articles
Journal:
Biochemical Journal
Biochem J (2003) 373 (1): 115–123.
Published: 01 July 2003
... interact for electron transfer between lactate-reduced FMN and haem b 2 ; in vivo , the latter reduces cytochrome c . In the crystal structure, one haem domain out of two is mobile. Previously we have described a monoclonal antibody, raised against the tetramer, that only recognizes the native haem domain...
Articles
Journal:
Biochemical Journal
Biochem J (2003) 371 (2): 377–383.
Published: 15 April 2003
... 2003 The Biochemical Society, London ©2003 2003 cupredoxin electron transfer paramagnetic NMR Abbreviations used: CBP, cucumber basic protein; CST, cucumber stellacyanin; LMCT, ligand to metal charge transfer; SCu, stellacyanin from Rhus vernicifera ; UCu, umecyanin. Biochem...
Articles
Jon R. LLOYD, Ching LEANG, Allison L. HODGES MYERSON, Maddalena V. COPPI, Stacey CUIFO, Barb METHE, Steven J. SANDLER, Derek R. LOVLEY
Journal:
Biochemical Journal
Biochem J (2003) 369 (1): 153–161.
Published: 01 January 2003
... to the GenBank ® , EMBL, DDBJ and GSDB Nucleotide Sequence databases under accession number AF505790. 16 4 2002 4 9 2002 30 9 2002 30 9 2002 The Biochemical Society, London ©2003 2003 dissimilatory Fe(III) reduction electron transfer iron respiration...
Articles
Journal:
Biochemical Journal
Biochem J (2001) 360 (3): 717–726.
Published: 10 December 2001
[email protected] ). 25 7 2001 3 10 2001 8 10 2001 The Biochemical Society, London ©2001 2001 electron transfer ferredoxin iron–sulphur cluster oxidation voltammetry Abbreviations used: Av FdI, Azotobacter vinelandii ferredoxin (Fd)I; Cp Fd, Clostridium pasteurianum...
Articles
Journal:
Biochemical Journal
Biochem J (2001) 356 (2): 595–604.
Published: 24 May 2001
... in the GenBank® database under accession number AF116872. cyanide-resistant respiration electron transfer histidine kinase reactive oxygen species Abbreviations used: AOX, alternative oxidase; ROS, reactive oxygen species; ORF, open reading frame. Biochem. J. (2001) 356, 595 604 (Printed...
Articles
Journal:
Biochemical Journal
Biochem J (2001) 354 (1): 89–98.
Published: 08 February 2001
..., the N-terminal domain is less stable than the isolated C-terminal domain, a finding consistent with the known properties of the full-length 2Fe and cadmium-substituted Ps. oleovorans rubredoxin. alkaline hydroxylation electron transfer metalloprotein 1 Present address: Department...
Articles
Euan H. J. GORDON, Andrew D. PIKE, Anne E. HILL, Pauline M. CUTHBERTSON, Stephen K. CHAPMAN, Graeme A. REID
Journal:
Biochemical Journal
Biochem J (2000) 349 (1): 153–158.
Published: 26 June 2000
... of Oxford, South Parks Road, Oxford, OX1 3QU, U.K. 2 To whom correspondence should be addressed (e-mail [email protected]). 24 1 2000 20 3 2000 10 4 2000 The Biochemical Society, London © 2000 2000 electron transfer iron respiration redox potentials Biochem. J...
Articles
Journal:
Biochemical Journal
Biochem J (1999) 341 (2): 307–314.
Published: 08 July 1999
... 1999 30 3 1999 5 5 1999 The Biochemical Society, London © 1999 1999 amine oxidation electron transfer flavoprotein Biochem. J. (1999) 341, 307 314 (Printed in Great Britain) 307 Reductive half-reaction of the H172Q mutant of trimethylamine dehydrogenase : evidence against...