Results 1 to 10 of about 8,783 (160)

Activity of NAD(P)H-Oxidoreductases in Ovarian Cancer [PDF]

open access: yesBiomedicines
Reactive oxygen species (ROS) play an important and controversial role in carcinogenesis. Microsomal redox chains containing NADH- and NADPH-dependent oxidoreductases are among the main sites of intracellular ROS synthesis, but their role in the ...
Maria V. Fedorova   +3 more
doaj   +2 more sources

The two alternative NADH:quinone oxidoreductases from Staphylococcus aureus: two players with different molecular and cellular roles [PDF]

open access: yesMicrobiology Spectrum
Staphylococcus aureus is an opportunistic pathogen that has emerged as a major public health threat due to the increased incidence of its drug resistance. S.
Filipa V. Sena   +7 more
doaj   +2 more sources

Assessing POR and CYB5R1 oxidoreductase-mediated oxidative rupture of PUFA in liposomes

open access: yesSTAR Protocols, 2021
Summary: Lipid peroxidation of polyunsaturated fatty acid (PUFA) phospholipids induces necrotic cell death through compromised cell membrane integrity during ferroptosis.
Bo Yan   +3 more
doaj   +1 more source

The oxidoreductases POR and CYB5R1 catalyze lipid peroxidation to execute ferroptosis

open access: yesMolecular & Cellular Oncology, 2021
Our recent study showed that two oxidoreductases – NADPH-cytochrome P450 reductase (POR) and NADH-cytochrome b5 reductase (CYB5R1) – transfer electrons to oxygen to generate hydrogen peroxide (H2O2).
Youwei Ai, Bo Yan, Xiaodong Wang
doaj   +1 more source

Copper oxide-based cathode for direct NADPH regeneration

open access: yesScientific Reports, 2021
Nearly a fourth of all enzymatic activities is attributable to oxidoreductases, and the redox reactions supported by this vast catalytic repertoire sustain cellular metabolism.
J. T. Kadowaki   +4 more
doaj   +1 more source

Intensifying Electron Utilization by Surface-Anchored Rh Complex for Enhanced Nicotinamide Cofactor Regeneration and Photoenzymatic CO2 Reduction

open access: yesResearch, 2021
Solar-driven photocatalytic regeneration of cofactors, including reduced nicotinamide adenine dinucleotide (NADH), reduced nicotinamide adenine dinucleotide phosphate (NADPH), and reduced flavin adenine dinucleotide (FADH2), could ensure the sustainable ...
Yuqing Cheng   +7 more
doaj   +1 more source

Characterization of NADH Oxidase/NADPH Polysulfide Oxidoreductase and Its Unexpected Participation in Oxygen Sensitivity in an Anaerobic Hyperthermophilic Archaeon [PDF]

open access: yesJournal of Bacteriology, 2010
ABSTRACT Many genomes of anaerobic hyperthermophiles encode multiple homologs of NAD(P)H oxidase that are thought to function in response to oxidative stress. We investigated one of the seven NAD(P)H oxidase homologs (TK1481) in the sulfur-reducing hyperthermophilic archaeon Thermococcus kodakarensis ...
Satoshi Nakamura   +5 more
openaire   +3 more sources

Identification of oxidoreductases from the petroleum Bacillus safensis strain

open access: yesBiotechnology Reports, 2015
A gram-positive bacterium, denominated CFA-06, was isolated from Brazilian petroleum in the Campos Basin and is responsible for the degradation of aromatic compounds and petroleum aromatic fractions.
Francine S.A. da Fonseca   +12 more
doaj   +1 more source

The reaction of NADPH with bovine mitochondrial NADH:ubiquinone oxidoreductase revisited [PDF]

open access: yesJournal of Bioenergetics and Biomembranes, 2010
Bovine NADH:ubiquinone oxidoreductase (Complex I) is the first complex in the mitochondrial respiratory chain. It has long been assumed that it contained only one FMN group. However, as demonstrated in 2003, the intact enzyme contains two FMN groups. The second FMN was proposed to be located in a conserved flavodoxin fold predicted to be present in the
openaire   +10 more sources

Reduction of the plastoquinone pool by exogenous NADH and NADPH in higher plant chloroplasts

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1998
Chlorophyll fluorescence measurements were performed on osmotically lysed potato chloroplasts in order to characterize the reactions involved in the dark reduction of photosynthetic inter-system chain electron carriers. Addition of NADH or NADPH to lysed chloroplasts increased the chlorophyll fluorescence level measured in the presence of a non-actinic
Michel Havaux   +4 more
openaire   +3 more sources

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