Intermolecular interactions and proton transfer in the hydrogen halide–superoxide anion complexes

2016 ◽  
Vol 18 (8) ◽  
pp. 6201-6208 ◽  
Author(s):  
Sebastian J. R. Lee ◽  
J. Wayne Mullinax ◽  
Henry F. Schaefer
Keyword(s):  
Proton Transfer ◽  
Ab Initio ◽  
Intermolecular Interactions ◽  
Superoxide Anion ◽  
Radical Anion ◽  
Superoxide Radical ◽  
Hydrogen Halide ◽  
Superoxide Radical Anion ◽  
Anion Complexes

We characterize the intermolecular interactions between the halogen halides and the superoxide radical anion with ab initio computations.

Concerted double proton-transfer electron-transfer between catechol and superoxide radical anion

2017 ◽  
Vol 19 (38) ◽  
pp. 26179-26190 ◽  
Author(s):  
Jorge Quintero-Saumeth ◽  
David A. Rincón ◽  
Markus Doerr ◽  
Martha C. Daza
Keyword(s):  
Electron Transfer ◽  
Proton Transfer ◽  
Superoxide Anion ◽  
Radical Anion ◽  
Reaction Rate ◽  
Superoxide Radical ◽  
Superoxide Radical Anion ◽  
Double Proton Transfer

Catechol reacts with a superoxide anion via concerted double proton-transfer electron-transfer with a reaction rate that is dominated by tunneling.

Chemical repair mechanisms of damaged tyrosyl and tryptophanyl residues in proteins by the superoxide radical anion

2020 ◽  
Vol 44 (6) ◽  
pp. 2505-2513
Author(s):  
Leonardo Muñoz-Rugeles ◽  
Annia Galano ◽  
Juan Raúl Alvarez-Idaboy
Keyword(s):  
Superoxide Anion ◽  
Radical Anion ◽  
Anion Radical ◽  
Superoxide Radical ◽  
Superoxide Anion Radical ◽  
Superoxide Radical Anion ◽  
Diffusion Controlled ◽  
Repair Mechanisms

Even though reaction of the superoxide anion radical/hydroperoxide radical could lead to oxidation of biomolecules, it can repair oxidized tyrosyl and tryptophanyl residues in proteins at diffusion-controlled rates.

The other side of the superoxide radical anion: its ability to chemically repair DNA oxidized sites

2018 ◽  
Vol 54 (97) ◽  
pp. 13710-13713 ◽  
Author(s):  
Leonardo Muñoz-Rugeles ◽  
Annia Galano ◽  
Juan Raúl Alvarez-Idaboy
Keyword(s):  
Superoxide Anion ◽  
Radical Anion ◽  
Anion Radical ◽  
Superoxide Radical ◽  
Superoxide Anion Radical ◽  
The Other ◽  
Superoxide Radical Anion ◽  
Diffusion Controlled

Even though reaction of the superoxide anion radical/hydroperoxide radical could lead to oxidation of biomolecules, it can reduce oxidized DNA at diffusion controlled rates.

The pulse radiolytic study of one-electron oxidation of hydropropidine and hydroethidine – implications for the detection of superoxide radical anion in biological systems

2018 ◽  
Vol 120 ◽  
pp. S157 ◽  
Author(s):  
Radoslaw Michalski ◽  
Bartosz Michalowski ◽  
Jakub Pieta ◽  
Jacek Zielonka ◽  
Balaraman Kalyanaraman ◽  
...  
Keyword(s):  
Radical Anion ◽  
Superoxide Radical ◽  
Biological Systems ◽  
Superoxide Radical Anion

N,N.N′,N′-tetramethylhydroethidine (TMHE) - in search for better probes for the detection of superoxide radical anion

2017 ◽  
Vol 108 ◽  
pp. S38
Author(s):  
Adam Sikora ◽  
Radosław Michalski ◽  
Micael Hardy ◽  
Olivier Ouari ◽  
Jan Adamus ◽  
...  
Keyword(s):  
Radical Anion ◽  
Superoxide Radical ◽  
Superoxide Radical Anion
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