Results 1 to 10 of about 7,023 (163)

Transient Sulfenic Acids in the Synthesis of Biologically Relevant Products [PDF]

open access: yesMolecules, 2018
Sulfenic acids as small molecules are too unstable to be isolated and their transient nature offers the possibility to involve them in concerted processes that lead to the obtainment of functional groups such as sulfoxides, sulfones, and disulfides.
Anna Barattucci   +4 more
doaj   +2 more sources

Cysteine-based redox regulation and signalling in plants [PDF]

open access: yesFrontiers in Plant Science, 2013
Living organisms are subjected to oxidative stress conditions which are characterized by the production of reactive oxygen (ROS), nitrogen (RNS) and sulfur (RSS) species.
Jérémy eCouturier   +3 more
doaj   +7 more sources

Formation, reactivity, and detection of protein sulfenic acids. [PDF]

open access: yesChem Res Toxicol, 2010
It has become clear in recent decades that the post-translational modification of protein cysteine residues is a crucial regulatory event in biology. Evidence supports the reversible oxidation of cysteine thiol groups as a mechanism of redox-based signal transduction, while the accumulation of proteins with irreversible thiol oxidations is a hallmark ...
Kettenhofen NJ, Wood MJ.
europepmc   +4 more sources

Parallel evaluation of nucleophilic and electrophilic chemical probes for sulfenic acid: Reactivity, selectivity and biocompatibility

open access: yesRedox Biology, 2021
Cysteine sulfenic acids (Cys-SOH) are pivotal modifications in thiol-based redox signaling and central intermediates en route to disulfide and sulfinic acid states.
Yunlong Shi, Kate S. Carroll
doaj   +1 more source

Cysteinyl and methionyl redox switches: Structural prerequisites and consequences

open access: yesRedox Biology, 2023
Redox modifications of specific cysteinyl and methionyl residues regulate key enzymes and signal-transducing proteins in various pathways. Here, we analyzed the effect of redox modifications on protein structure screening the RCSB protein data bank for ...
Yana Bodnar, Christopher Horst Lillig
doaj   +1 more source

Isolable small-molecule cysteine sulfenic acid

open access: yesChemical Communications, 2021
A small-molecule cysteine sulfenic acid (Cys–SOH) with ‘shelf stability’ protected by a molecular cradle was synthesized by direct oxidation of a thiol with H2O2. Its crystal structure and biologically relevant reactivity were elucidated.
Tsukasa Sano   +3 more
openaire   +3 more sources

A Lesson Learnt from Food Chemistry—Elevated Temperature Triggers the Antioxidant Action of Two Edible Isothiocyanates: Erucin and Sulforaphane

open access: yesAntioxidants, 2020
In this communication we demonstrate that two natural isothiocyanates, sulforaphane (SFN) and erucin (ERN), inhibit autoxidation of lipids at 140 °C but not below 100 °C.
Jakub Cedrowski   +3 more
doaj   +1 more source

Peroxisome-Derived Hydrogen Peroxide Modulates the Sulfenylation Profiles of Key Redox Signaling Proteins in Flp-In T-REx 293 Cells

open access: yesFrontiers in Cell and Developmental Biology, 2022
The involvement of peroxisomes in cellular hydrogen peroxide (H2O2) metabolism has been a central theme since their first biochemical characterization by Christian de Duve in 1965.
Celien Lismont   +11 more
doaj   +1 more source

Akt1 intramitochondrial cycling is a crucial step in the redox modulation of cell cycle progression. [PDF]

open access: yesPLoS ONE, 2009
Akt is a serine/threonine kinase involved in cell proliferation, apoptosis, and glucose metabolism. Akt is differentially activated by growth factors and oxidative stress by sequential phosphorylation of Ser(473) by mTORC2 and Thr(308) by PDK1.
Valeria Gabriela Antico Arciuch   +6 more
doaj   +1 more source

Biocatalytic Syntheses of Antiplatelet Metabolites of the Thienopyridines Clopidogrel and Prasugrel Using Fungal Peroxygenases

open access: yesJournal of Fungi, 2021
Antithrombotic thienopyridines, such as clopidogrel and prasugrel, are prodrugs that undergo a metabolic two-step bioactivation for their pharmacological efficacy.
Jan Kiebist   +9 more
doaj   +1 more source

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