Results 21 to 30 of about 9,389 (177)

A fluorescence sensor for nitroreductase detection in hypoxic cells and zebrafish

open access: yesResults in Chemistry, 2021
Nitroreductase (NTR) is a type of cytoplasmic enzyme that depends on flavin mononucleotide or flavin adenine dinucleotide, and that is widely present in tumor cells where it increases during hypoxia. NTR can effectively reduce aromatic nitro compounds to
Wan Sun   +7 more
doaj   +1 more source

Enhanced small green fluorescent proteins as a multisensing platform for biosensor development

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Engineered light, oxygen, and voltage (LOV)-based proteins are able to fluoresce without oxygen requirement due to the autocatalytic incorporation of exogenous flavin as a chromophore thus allowing for live cell imaging under hypoxic and anaerobic ...
Guo-Teng Liang   +25 more
doaj   +1 more source

Crystal Structures of Putative Flavin Dependent Monooxygenase from Alicyclobacillus Acidocaldarius

open access: yesCrystals, 2019
Flavin dependent monooxygenases catalyze various reactions to play a key role in biological processes, such as catabolism, detoxification, and biosynthesis.
Hyunjin Moon   +2 more
doaj   +1 more source

H2O2 selectively damages the binuclear iron-sulfur cluster N1b of respiratory complex I

open access: yesScientific Reports, 2023
NADH:ubiquinone oxidoreductase, respiratory complex I, plays a major role in cellular energy metabolism by coupling electron transfer with proton translocation.
Lisa Strotmann   +6 more
doaj   +1 more source

FMN reduces Amyloid-β toxicity in yeast by regulating redox status and cellular metabolism

open access: yesNature Communications, 2020
Saccharomyces cerevisiae is a model organism to study proteins involved in neurodegeneration. Here, the authors performed a yeast genome-wide synthetic genetic interaction array (SGA) to screen for toxicity modifiers of Aβ42 and identify riboflavin ...
Xin Chen   +6 more
doaj   +1 more source

Mass spectrometry locates local and allosteric conformational changes that occur on cofactor binding

open access: yesNature Communications, 2016
The decarboxylate enzyme Fdc1 requires a prenylated flavin mononucleotide co-factor for activity. Here, the authors use a variety of mass spectrometric techniques to observe the structural changes in this protein in response to co-factor binding.
Rebecca Beveridge   +5 more
doaj   +1 more source

Co-Overexpression of RIB1 and RIB6 Increases Riboflavin Production in the Yeast Candida famata

open access: yesFermentation, 2022
Riboflavin or vitamin B2 is a water-soluble vitamin and a precursor of flavin coenzymes, flavin mononucleotide, and flavin adenine dinucleotide, which play a key role as enzyme cofactors in energy metabolism.
Yana Petrovska   +4 more
doaj   +1 more source

Flavin fluorescence lifetime and autofluorescence optical redox ratio for improved visualization and classification of brain tumors

open access: yesFrontiers in Oncology, 2023
PurposeModern techniques for improved tumor visualization have the aim to maximize the extent of resection during brain tumor surgery and thus improve patient prognosis.
David Reichert   +18 more
doaj   +1 more source

Production of Vitamin B2 (Riboflavin) by Microorganisms: An Overview

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
Riboflavin is a crucial micronutrient that is a precursor to coenzymes flavin mononucleotide and flavin adenine dinucleotide, and it is required for biochemical reactions in all living cells.
Liudmila A. Averianova   +8 more
doaj   +1 more source

The structural and functional basis of catalysis mediated by NAD(P)H:acceptor Oxidoreductase (FerB) of Paracoccus denitrificans. [PDF]

open access: yesPLoS ONE, 2014
FerB from Paracoccus denitrificans is a soluble cytoplasmic flavoprotein that accepts redox equivalents from NADH or NADPH and transfers them to various acceptors such as quinones, ferric complexes and chromate.
Vojtěch Sedláček   +3 more
doaj   +1 more source

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