Results 71 to 80 of about 372,261 (217)

Saccharomyces cerevisiae Rhodanese RDL2 Uses the Arg Residue of the Active-Site Loop for Thiosulfate Decomposition

open access: yesAntioxidants, 2021
Persulfide, polysulfide and thiosulfate are examples of sulfane sulfur containing chemicals that play multiple functions in biological systems. Rhodaneses are widely present in all three kingdoms of life, which catalyze sulfur transfer among these ...
Qingda Wang   +4 more
doaj   +1 more source

Redox Modulation at Work: Natural Phytoprotective Polysulfanes From Alliums Based on Redox-Active Sulfur [PDF]

open access: yes, 2018
Purpose of review: This article provides a brief overview of natural phytoprotective products of allium with a special focus on the therapeutic potential of diallyl polysulfanes from garlic, their molecular targets and their fate in the living organisms.
A Anwar   +88 more
core   +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

The conversion of H2S to sulfane sulfur [PDF]

open access: yesNature Reviews Molecular Cell Biology, 2012
In a recently published Review article (H2S signalling through protein sulfhydration and beyond. Nature Rev. Mol. Cell Biol. 13, 499–507 (2012))1, Paul and Snyder use the term 'sulfhydration' to define a protein modification involving hydrogen sulfide (H2S) in which “the sulfhydryl group of a reactive Cys is modified to an -SSH group”.
openaire   +2 more sources

Thiosulfonate‐Derived BODIPY “Stick and Glue” Strategy for Fluorescent Thiol Labeling

open access: yesAngewandte Chemie, EarlyView.
We present a powerful photochemical strategy for converting disulfide bonds into stable thioether linkages via a [1,2]‐sigmatropic rearrangement. By integrating this reaction into traditional methanethiosulfonate‐based thiol labeling, we enable light‐triggered stabilization of peptide and protein conjugates with enhanced robustness and versatility ...
Lucie Šálková   +4 more
wiley   +2 more sources

Low Temperature Raman Spectra of Dichlorosulfane (SC12), Tetrachlorosulfurane (SC14), Dichlorodisulfane (S2C12) and Dichlorodiselane (Se2Cl2) [1] [PDF]

open access: yes, 1987
The Raman spectrum of commercial "sulfur dichloride" shows strong lines due to SCl2 and S2Cl2 and weak Cl2 lines at 25 °C, but strong SCl2 and SCl4 signals at -100 °C (the latter are superimposed on the S2Cl2 lines).
Jensen, Detlef   +2 more
core   +1 more source

Slow generation of hydrogen sulfide from sulfane sulfurs and NADH models [PDF]

open access: yesBioorganic & Medicinal Chemistry Letters, 2017
Here we report the model studies of the reactions between NADH models (using HEH and BNAH) and sulfane sulfurs (using polysulfides). Such reactions could lead to the oxidation of NADH models and the production of hydrogen sulfide (H2S). Kinetics of the reaction between BNAH and elemental sulfur S8 were determined in ethanol and the second-order rate ...
Peng, Bo   +6 more
openaire   +3 more sources

The multifaceted roles of sulfane sulfur species in cancer-associated processes

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2021
Sulfane sulfur species comprise a variety of biologically relevant hydrogen sulfide (H2S)-derived species, including per- and poly-sulfidated low molecular weight compounds and proteins. A growing body of evidence suggests that H2S, currently recognized as a key signaling molecule in human physiology and pathophysiology, plays an important role in ...
Zuhra, Karim   +4 more
openaire   +4 more sources

Hydrogen Sulfide: Redox Metabolism and Signaling [PDF]

open access: yes, 2011
The recognition of hydrogen sulfide (H2S) as an endogenously produced gas with signaling potential has stimulated research on a multitude of physiological effects mediated in the cardiovascular, immune, gastrointestinal, genitourinary, endocrine, and ...
Banerjee, Ruma
core   +1 more source

Involvement of the Azotobacter vinelandii Rhodanese-Like Protein RhdA in the Glutathione Regeneration Pathway [PDF]

open access: yes, 2012
The phenotypic features of the Azotobacter vinelandii RhdA mutant MV474 (in which the rhdA gene was deleted) indicated that defects in antioxidant systems in this organism were related to the expression of the tandem-domain rhodanese RhdA.
Forlani, Fabio   +5 more
core   +4 more sources

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