The system VO2++oxidized glutathione: A potentiometric and spectroscopic study

J. Costa Pessoa, I. Tomaz, T. Kiss, P. Buglyó

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

The equilibria in the system VO2++oxidized glutathione in aqueous solution have been studied in the pH range 2-11 by a combination of pH potentiometry and spectroscopy (EPR, visible absorption and circular dichroism). The results of the various methods are self-consistent and the equilibrium model includes the species MLH4, MLH3, MLH2, MLH, ML, MLH-1, MLH-2 and several hydrolysis products (where H4L denotes oxidized glutathione); individual formation constants and spectra are given. Plausible structures for each stoichiometry are discussed.

Original languageEnglish
Pages (from-to)259-270
Number of pages12
JournalJournal of Inorganic Biochemistry
Volume84
Issue number3-4
DOIs
Publication statusPublished - Jan 1 2001

Keywords

  • Oxidized glutathione
  • Stoichiometry
  • Structure
  • VO

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry

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