Electrochemical data on redox properties of human Cofilin-2 and its Mutant S3D

Data in Brief

Federica del Monte¹  Marcello Pignataro²  Daniele Moro³  Giovanni Valdrè³  Lidia Lancellotti⁴  Fabrizio Bernini⁴  Marco Borsari⁴  Daniele Malferrari⁴  Elena Castellini⁴  Giulia Di Rocco⁵  Carlo Augusto Bortolotti⁵  Khaushik Subramanian⁶ 

[1] Corresponding authors.;Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, USA;Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy;Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Modena, Italy;Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy;Novartis Institutes of Biomedical Research, Boston, USA;

关键词: Human cofilin;    Disulfide bridge;    Cyclic voltammetry;    Redox properties;    Electrochemistry;    Cysteine;   

DOI  :  

来源: DOAJ

【 摘 要 】

The reported data are related to a research paper entitled ''Phosphorylated cofilin-2 is more prone to oxidative modifications on Cys39 and favors amyloid fibril formation'' [1]. Info about the formation and redox properties of the disulfide bridge of a protein is quite difficult to obtain and only in a few cases was it possible to observe a cyclic voltammetry (CV) signal [2,3]. Human cofilin-2 contains two cysteines (Cys39 and Cys80) which can be oxidized in suitable conditions and form a disulfide bridge [1]. For this purpose, CV measurements were carried out on human cofilin-2 WT and its mutant S3D immobilized on a gold electrode coated by an anionic self-assembled monolayer (SAM), after a pre-oxidation time which was fundamental for observing a CV signal relating to the oxidation/reduction process of the disulfide bridge of the proteins. The data include CV curves obtained with and without electrochemical pre-oxidation and after oxidation with H2O2. In addition, the plot of the cathodic peak current vs. electrochemical pre-oxidation time and the pH dependence of the formal potential (E°’) are reported. The data obtained by CV measurements were used to determine the time required to form the disulfide bridge for the immobilized proteins and, consequently, to observe the CV signal, to calculate the E°’ values and analyse the pH dependence of E°’. The electrochemical data were provided which will be useful for further electrochemical investigations regarding proteins bearing disulfide bridge(s) or cysteines prone to oxidation.

【 授权许可】

Unknown