Results 81 to 90 of about 3,197 (196)

Flavin-Based Electron Bifurcation, Ferredoxin, Flavodoxin, and Anaerobic Respiration With Protons (Ech) or NAD+ (Rnf) as Electron Acceptors: A Historical Review

open access: yesFrontiers in Microbiology, 2018
Flavin-based electron bifurcation is a newly discovered mechanism, by which a hydride electron pair from NAD(P)H, coenzyme F420H2, H2, or formate is split by flavoproteins into one-electron with a more negative reduction potential and one with a more ...
Wolfgang Buckel, Rudolf K. Thauer
doaj   +1 more source

The Primary Structure of the Clostridium tartarivorum Ferredoxin, a Heat-stable Ferredoxin

open access: yesJournal of Biological Chemistry, 1971
The amino acid sequence of the Clostridium tartarivorum ferredoxin was determined to be: Ala-His-Ile-Ile-Thr-Asp-Glu-Cys-Ile-Ser-Cys-Gly-Ala-Cys-Ala-Ala-Glu-Cys-Pro-Val-Glu-Ala-Ile-His-Glu-Gly-Thr-Gly-Lys-Tyr-Gln-Val-Asp-Ala-Asp-Thr-Cys-Ile-Asp-Cys-Gly-Ala-Cys-Gln-Ala-Val-Cys-Pro-Thr-Gly-Ala-Val-Lys-Ala-Glu. The first 23 residues were determined in the
M, Tanaka   +7 more
openaire   +2 more sources

Quaternary structures of Streptococcus pneumoniae nucleoside diphosphate kinase: From hexamers to supramolecular assemblies

open access: yesProtein Science, Volume 35, Issue 9, September 2026.
Abstract The nucleoside diphosphate kinase (NDK) is a key enzyme that controls the balance of nucleotide pools in all living organisms. Beyond this fundamental role, NDKs exert pleiotropic effects in many cellular processes, including cell development, signal transduction, differentiation, tumor metastasis, and gene expression. The quaternary structure
Julie Kerboeuf   +10 more
wiley   +1 more source

Electron transport in acetate-grown Methanosarcina acetivorans

open access: yesBMC Microbiology, 2011
Background Acetate is the major source of methane in nature. The majority of investigations have focused on acetotrophic methanogens for which energy-conserving electron transport is dependent on the production and consumption of H2 as an intermediate ...
Ferry James G   +2 more
doaj   +1 more source

Evolutionary insights into bilin biosynthesis: Functional characterization of pre‐PcyA enzymes

open access: yesProtein Science, Volume 35, Issue 9, September 2026.
Abstract Biosynthesis of the linear tetrapyrrole phycocyanobilin (PCB) by the ferredoxin‐dependent bilin reductase (FDBR) PcyA is essential for light‐harvesting and regulatory processes in diverse photosynthetic organisms, yet its evolutionary origins are not fully understood. PcyA evolved from pre‐PcyA proteins found in diverse bacteria.
Federica Frascogna   +3 more
wiley   +1 more source

Complete Chloroplast Genome of Indonesian Sugarcane (Saccharum ‘Bululawang’): Comparative, Structural, and Evolutionary Analysis of Photosystem I‐Encoding Genes

open access: yesJournal of Sustainable Agriculture and Environment, Volume 5, Issue 3, September 2026.
ABSTRACT Sugarcane is one of the most important crops, providing the majority of global sugar production and serving as a major feedstock for bioenergy. Increasing demands for sustainable sugar production under climate and productivity constraint have intensified the need for molecular‐level characterization of elite cultivars.
Widhi Dyah Sawitri   +6 more
wiley   +1 more source

Simultaneous expression of ferredoxin, ferredoxin reductase and P450 in COS7 cells

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1997
cDNA fragments encoding mouse ferredoxin and ferredoxin reductase were simultaneously introduced into COS7 cells by using an expression vector, pUC-SR alpha plasmid. When using the mitochondrial fraction prepared from the transfected cells, cytochrome-c reductase activity was detected.
Itoh, Susumu   +8 more
openaire   +2 more sources

Biogenic Iron Oxide Nanoparticles Confer Induced Pre‐sowing Drought Tolerance in Glycine max via Enhanced Soil‐Plant Physiological Responses

open access: yesJournal of Sustainable Agriculture and Environment, Volume 5, Issue 3, September 2026.
ABSTRACT Drought stress severely affects soybean (Glycine max L.) growth and productivity by disrupting physiological and metabolic processes. This study evaluated the potential of biogenic iron oxide nanoparticles green synthesised using Pistacia khinjuk L. leaf extract to improve soybean tolerance to water deficit.
Usman Shafqat   +7 more
wiley   +1 more source

Ferredoxin/ferredoxin–thioredoxin reductase complex: Complete NMR mapping of the interaction site on ferredoxin by gallium substitution

open access: yesFEBS Letters, 2006
The reduction of ferredoxin–thioredoxin reductase (FTR) by plant‐type ferredoxin plays an important role in redox regulation in plants and cyanobacteria. Nuclear magnetic resonance (NMR) was used to map the binding sites on Synechocystis ferredoxin for FTR.
Xu, Xingfu   +7 more
openaire   +2 more sources

Outer‐Sphere Tuning of Synthetic Iron–Sulfur Clusters Within Nanoscale Cage Frameworks

open access: yesSmall, Volume 22, Issue 49, 1 September 2026.
Noncovalent encapsulation of a synthetic iron–sulfur cluster within hydrophobic, naphthalenediimide (NDI)‐paneled cages is shown to lead to dramatic changes in the electronic structure and covalency of the Fe─S core. ABSTRACT As atomic‐scale archetypes for multi‐electron transfer, iron–sulfur clusters are compelling candidates for the design of redox ...
Rupal Baliyan   +3 more
wiley   +1 more source

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