Results 31 to 40 of about 4,338 (207)

Mass spectrometric identification of intermediates in the O2-driven [4Fe-4S] to [2Fe-2S] cluster conversion in FNR [PDF]

open access: yes, 2017
The iron-sulfur cluster containing protein FNR is the master regulator for the switch between anaerobic and aerobic respiration in Escherichia coli and many other bacteria. The [4Fe-4S] cluster functions as the sensory module, undergoing reaction with O2
Crack, Jason C.   +2 more
core   +1 more source

CoQ deficiency causes disruption of mitochondrial sulfide oxidation, a new pathomechanism associated with this syndrome [PDF]

open access: yes, 2017
Coenzyme Q (CoQ) is a key component of the mitochondrial respiratory chain, but it also has several other functions in the cellular metabolism. One of them is to function as an electron carrier in the reaction catalyzed by sulfide:quinone oxidoreductase (
Barriocanal-Casado, Eliana   +5 more
core   +4 more sources

Mass spectrometric detection of iron nitrosyls, sulfide oxidation and mycothiolation during nitrosylation of the NO sensor [4Fe-4S] NsrR [PDF]

open access: yes, 2018
Identification of RRE-type iron-nitrosyl species formed upon nitrosylation of [4Fe–4S] NsrR.
Crack, Jason C.   +2 more
core   +1 more source

Mammalian frataxin directly enhances sulfur transfer of NFS1 persulfide to both ISCU and free thiols [PDF]

open access: yes, 2014
Friedreich's ataxia is a severe neurodegenerative disease caused by the decreased expression of frataxin, a mitochondrial protein that stimulates iron sulfur (Fe-S) cluster biogenesis.
Belot, Laura   +7 more
core   +2 more sources

Effects of inhibiting antioxidant pathways on cellular hydrogen sulfide and polysulfide metabolism [PDF]

open access: yes, 2019
Elaborate antioxidant pathways have evolved to minimize the threat of excessive reactive oxygen species (ROS) and to regulate ROS as signaling entities.
Gao, Yan, Olson, Kenneth R.
core   +1 more source

Reactions of isolated persulfides provide insights into the interplay between H2S and persulfide reactivity [PDF]

open access: yesFree Radical Biology and Medicine, 2015
Hydrogen sulfide is ubiquitous in biological systems and exerts function over a wide range of important physiological processes. Complementing free H2S, the reductant-labile sulfur pool plays significant roles in the translocation and action of sulfide, however the chemistry of reductant-labile sulfide sources has not been studied systematically. Using
T Spencer, Bailey, Michael D, Pluth
openaire   +2 more sources

Hypoxia increases persulfide and polysulfide formation by AMP kinase dependent cystathionine gamma lyase phosphorylation

open access: yesRedox Biology, 2023
Hydropersulfide and hydropolysulfide metabolites are increasingly important reactive sulfur species (RSS) regulating numerous cellular redox dependent functions.
Shafiul Alam   +13 more
doaj   +1 more source

Biochemical properties of Paracoccus denitrificans FnrP:Reactions with molecular oxygen and nitric oxide [PDF]

open access: yes, 2016
In Paracoccus denitrificans, three CRP/FNR family regulatory proteins, NarR, NnrR and FnrP, control the switch between aerobic and anaerobic (denitrification) respiration.
A Volbeda   +57 more
core   +1 more source

Sulfur Atom in its Bound State Is a Unique Element Involved in Physiological Functions in Mammals

open access: yesMolecules, 2016
It was in the 1950s that the term polysulfide or persulfide was introduced in biological studies. The unfamiliar term “sulfane sulfur” sometimes appeared in papers published in the 1970s, and was defined in the review article by Westley in 1983.
Shin Koike, Yuki Ogasawara
doaj   +1 more source

Hydrogen Sulfide Signaling in Plants: Emerging Roles of Protein Persulfidation [PDF]

open access: yes, 2018
Hydrogen sulfide (H2S) has been largely referred as a toxic gas and environmental hazard, but recent years, it has emerged as an important gas-signaling molecule with effects on multiple physiological processes in both animal and plant systems.
Aroca Aguilar, Ángeles   +2 more
core   +1 more source

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