Arabidopsis thaliana dehydroascorbate reductase 2 : conformational flexibility during catalysis [PDF]
, 2017 Dehydroascorbate reductase (DHAR) catalyzes the glutathione (GSH)-dependent reduction of dehydroascorbate and plays a direct role in regenerating ascorbic acid, an essential plant antioxidant vital for defense against oxidative stress.
Bodra, Nandita +8 more
core +1 more source
A novel OxyR sensor and regulator of hydrogen peroxide stress with one cysteine residue in Deinococcus radiodurans. [PDF]
PLoS ONE, 2008 In bacteria, OxyR is a peroxide sensor and transcription regulator, which can sense the presence of reactive oxygen species and induce antioxidant system.
Huan Chen +9 more
doaj +1 more source
Hyperoxidation of Peroxiredoxins and Effects on Physiology of Drosophila
Antioxidants, 2021 The catalytic activity of peroxiredoxins (Prx) is determined by the conserved peroxidatic cysteine (CysP), which reacts with peroxides to form sulfenic acid (Cys-SOH).
Austin McGinnis +3 more
doaj +1 more source
Overoxidation of chloroplast 2-Cys peroxiredoxins: balancing toxic and signaling activities of hydrogen peroxide [PDF]
, 2013 Photosynthesis, the primary source of biomass and oxygen into the biosphere, involves the transport of electrons in the presence of oxygen and, therefore, chloroplasts constitute an important source of reactive oxygen species, including hydrogen peroxide.
Armario Nájera, María Victoria +8 more
core +2 more sources
Isolation of stable non cyclic 1,2-disulfoxides: revisiting the thermolysis of S-aryl sulfinimines [PDF]
, 2014 The thermolysis of S-aryl sulfinimines is shown to generate 1,2-disulfoxides and disulfides via initial Cope elimination, dimerisation of the produced sulfenic acid to a thiosulfinate, and subsequent disproportionation of the ...
Arini +54 more
core +2 more sources
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 +3 more
openaire +2 more sources
Frontiers in Microbiology, 2021 Biofabrication utilizes biological materials and biological means, or mimics thereof, for assembly. When interfaced with microelectronics, electrobiofabricated assemblies enable exquisite sensing and reporting capabilities.
Sally Wang +15 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 +10 more
core +2 more sources
Redox signaling, Nox5 and vascular remodeling in hypertension [PDF]
, 2015 Purpose of review: Extensive data indicate a role for reactive oxygen species (ROS) and redox signaling in vascular damage in hypertension. However, molecular mechanisms underlying these processes remain unclear, but oxidative post-translational ...
De Lucca Camargo, Livia +5 more
core +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 +5 more
core +1 more source