title: Transition metal complexes of L-cysteine containing di- and tripeptides.
abstract: 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.
authors.affiliation: Laboratoire de Chimie Macromoleculaire, Unite Associee au CNRS Universite des Sciences, Lille, France.
authors.forename: K
authors.initials: K
authors.lastname: Cherifi
authors.forename: B
authors.initials: B
authors.lastname: Decock-Le Reverend
authors.forename: K
authors.initials: K
authors.lastname: Varnagy
authors.forename: T
authors.initials: T
authors.lastname: Kiss
authors.forename: I
authors.initials: I
authors.lastname: Sovago
authors.forename: C
authors.initials: C
authors.lastname: Locheux
authors.forename: H
authors.initials: H
authors.lastname: Kozlowski
mesh_terms: D000595:Amino Acid Sequence; D002104:Cadmium; D055598:Chemical Phenomena; D002621:Chemistry; D003545:Cysteine / Q000032:analysis; D004151:Dipeptides / Q000032:analysis; D008969:Molecular Sequence Data; D009532:Nickel; D009842:Oligopeptides / Q000032:analysis; D015032:Zinc
chemical_list: D004151:Dipeptides; D009842:Oligopeptides; D002104:Cadmium; D009532:Nickel; D015032:Zinc; D003545:Cysteine