Results 31 to 40 of about 7,062 (200)

Polysulfide stabilization by tyrosine and hydroxyphenyl-containing derivatives that is important for a reactive sulfur metabolomics analysis

Redox Biology, 2019
The physiological importance of reactive sulfur species (RSS) such as cysteine hydropersulfide (CysSSH) has been increasingly recognized in recent years.
Hisyam Abdul Hamid, Akira Tanaka, Tomoaki Ida, Akira Nishimura, Tetsuro Matsunaga, Shigemoto Fujii, Masanobu Morita, Tomohiro Sawa, Jon M. Fukuto, Péter Nagy, Ryouhei Tsutsumi, Hozumi Motohashi, Hideshi Ihara, Takaaki Akaike   +13 more
doaj   +1 more source

The extraordinary catalytic ability of peroxiredoxins: a combined experimental and QM/MM study on the fast thiol oxidation step [PDF]

, 2014
Peroxiredoxins (Prxs) catalyze the reduction of peroxides, a process of key relevance in a variety of cellular processes. The first step in the catalytic cycle of all Prxs is the oxidation of a cysteine residue to sulfenic acid, which occurs 103–107 ...
Estrin, Dario Ariel, González Lebrero, Mariano Camilo, Radi Isola, Rafael, Reyes, Aníbal M., Trujillo, Madia, Zeida Camacho, Ari Fernando   +5 more
core   +1 more source

Unusually stable azetidinone sulfenic acids

Tetrahedron Letters, 1998
Abstract Sulfoxides of (2S,5S,6S)-penams rearrange upon heating in benzene or toluene to form unusually stable azetidinone sulfenic acids. A reversal of the process, the annelation of the sulfenic acids, is disfavoured due to steric congestion on the endo-face of the corresponding penam sulfoxides.
Fekner, T, Baldwin, J, Adlington, R, Schofield, C   +3 more
openaire   +2 more sources

OhsR acts as an organic peroxide-sensing transcriptional activator using an S-mycothiolation mechanism in Corynebacterium glutamicum

Microbial Cell Factories, 2018
Background Corynebacterium glutamicum is a well-known producer of various l-amino acids in industry. During the fermenting process, C. glutamicum unavoidably encounters oxidative stress due to a specific reactive oxygen species (ROS) produced by ...
Meiru Si, Tao Su, Can Chen, Jinfeng Liu, Zhijin Gong, Chengchuan Che, GuiZhi Li, Ge Yang   +7 more
doaj   +1 more source

Protein promiscuity in H2O2 signaling [PDF]

, 2019
Significance: Decrypting the cellular response to oxidative stress relies on a comprehensive understanding of the redox signaling pathways stimulated under oxidizing conditions.
Bodra, Nandita, De Smet, Barbara, Ezerina, Daria, Huang, Jingjing, Lewandowska, Aleksandra, Messens, Joris, Pedre, Brandan, Rosado, Leonardo Astolfi, Tossounian, Maria-Armineh, Van Breusegem, Frank, Young, David   +10 more
core   +2 more sources

Reaction of peroxynitrite with thiols, hydrogen sulfide and persulfides

Redox Biochemistry and Chemistry
Three decades of research on the biochemistry of peroxynitrite (ONOOH/ONOO−) have established that this stealthy oxidant is formed in biological systems, and that its main targets are carbon dioxide (CO2), metalloproteins and thiols (RSH).
Madia Trujillo, Ernesto Cuevasanta, Lucía Turell, Dayana Benchoam, Gerardo Ferrer-Sueta, Ari Zeida, Celia Quijano, Sebastián Carballal, Rafael Radi, Beatriz Alvarez   +9 more
doaj   +1 more source

A New Family of Membrane Electron Transporters and Its Substrates, Including a New Cell Envelope Peroxiredoxin, Reveal a Broadened Reductive Capacity of the Oxidative Bacterial Cell Envelope

mBio, 2012
The Escherichia coli membrane protein DsbD functions as an electron hub that dispatches electrons received from the cytoplasmic thioredoxin system to periplasmic oxidoreductases involved in protein disulfide isomerization, cytochrome c biogenesis, and ...
Seung-Hyun Cho, Derek Parsonage, Casey Thurston, Rachel J. Dutton, Leslie B. Poole, Jean-Francois Collet, Jon Beckwith   +6 more
doaj   +1 more source

Structural basis of redox-dependent modulation of galectin-1 dynamics and function [PDF]

, 2014
Galectin-1 (Gal-1), a member of a family of multifunctional lectins, plays key roles in diverse biological processes including cell signaling, immunomodulation, neuroprotection and angiogenesis.
Caramelo, Julio Javier, Estrin, Dario Ariel, Guardia, Carlos Manuel Alberto, Mendez Huergo, Santiago Patricio, Rabinovich, Gabriel Adrian, Radi, Rafael, Trujillo, Madia   +6 more
core   +4 more sources

Sulfenic acid chemistry, detection and cellular lifetime

Biochimica et Biophysica Acta (BBA) - General Subjects, 2014
Reactive oxygen species-mediated cysteine sulfenic acid modification has emerged as an important regulatory mechanism in cell signaling. The stability of sulfenic acid in proteins is dictated by the local microenvironment and ability of antioxidants to reduce this modification.
Gupta, Vinayak, Carroll, Kate S.
openaire   +2 more sources

Sulfonated, Disulfide‐Bridged Polymer Networks for Atmospheric Water Harvesting

Small, EarlyView.
Atmospheric water harvesting is a promising solution to the water crisis. Here, disulfide‐containing hyper‐crosslinked‐style polymers are prepared by combined Friedel–Crafts alkylation and thiol self‐condensation. Exhibiting exceptional uptake capacities, the polymers demonstrate dynamic bonding behavior.
Joseph J. Dale, Paul Schweng, Mathilde Gerbaud, Robert T. Woodward   +3 more
wiley   +1 more source