Results 31 to 40 of about 1,976 (189)

Hydrogen Sulfide and Persulfides Oxidation by Biologically Relevant Oxidizing Species

open access: yesAntioxidants, 2019
Hydrogen sulfide (H2S/HS⁻) can be formed in mammalian tissues and exert physiological effects. It can react with metal centers and oxidized thiol products such as disulfides (RSSR) and sulfenic acids (RSOH).
Dayana Benchoam   +3 more
doaj   +1 more source

Biological hydropersulfides and related polysulfides – a new concept and perspective in redox biology [PDF]

open access: yes, 2018
The chemical biology of thiols (RSH, e.g., cysteine and cysteine‐containing proteins/peptides) has been a topic of extreme interest for many decades due to their reported roles in protein structure/folding, redox signaling, metal ligation, cellular ...
Akaike Takaaki   +13 more
core   +2 more sources

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

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

Proteomics Profiling of S-sulfurated Proteins in Acinetobacter baumannii

open access: yesBio-Protocol, 2021
Hydrogen sulfide (H2S) is emerging as an important modulator in bacterial cytoprotection against the host immune response in infected animals, which may well be attributed to downstream highly oxidized sulfur species, termed reactive sulfur species (RSS),
Brenna Walsh, David Giedroc
doaj   +1 more source

Bis(aryl) Tetrasulfides as Cathode Materials for Rechargeable Lithium Batteries [PDF]

open access: yes, 2017
An organotetrasulfide consists of a linear chain of four sulfur atoms that could accept up to 6 e− in reduction reactions, thus providing a promising high-capacity electrode material. Herein, we study three bis(aryl) tetrasulfides as cathode materials in
Bhargav, Amruth   +6 more
core   +1 more source

Persulfidation of DJ-1 : Mechanism and Consequences

open access: yesBiomolecules, 2022
AbstractDJ-1 (also called PARK7) is a ubiquitously expressed protein involved in the etiology of Parkinson disease and cancers. At least one of its three cysteine residue is functionally essential, and its oxidation state determines the specific function of the enzyme.
Erwan Galardon   +5 more
openaire   +3 more sources

A Proteomic Approach to Study the Effect of Thiotaurine on Human Neutrophil Activation [PDF]

open access: yes, 2017
Thiotaurine, a thiosulfonate related to taurine and hypotaurine, is formed by a metabolic process from cystine and generated by a transulfuration reaction between hypotaurine and thiocysteine.
A Ferrante   +33 more
core   +2 more sources

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

Redox-Sensing Iron–Sulfur Cluster Regulators [PDF]

open access: yes, 2018
Significance: Iron–sulfur cluster proteins carry out multiple functions, including as regulators of gene transcription/translation in response to environmental stimuli.
Crack, Jason C, Le Brun, Nick E
core   +1 more source

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