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

