Transition metal complexes of L-cysteine containing Di- and tripeptides

Kamel Cherifi, Brigitte Decock Le Reverend, Claude Loucheux, Katalin Varnagy, Tamas Kiss, Imre Sovago, Henryk Kozlowski

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Nickel(II), cobalt(II), zinc(II), and cadmium(II) complexes of Ala-Cys, Phe-Cys, and Ala-Ala-Cys were studied by potentiometric and spectroscopic methods. Ni(II) induces deprotonation and coordination of the amide nitrogens, and the stable monomeric or oligomeric complexes are formed, depending on the metal to ligand molar ratios. Formation of the stable bis-complexes with {S,O} coordination mode is characteristic for cobalt(II), zinc(II), and cadmium(II) ions.

Original languageEnglish
Pages (from-to)69-80
Number of pages12
JournalJournal of Inorganic Biochemistry
Issue number1
Publication statusPublished - 1990


ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry

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