Copper(II)-lincomycin: Complexation pattern and oxidative activity

Małgorzata Jezowska-Bojczuk, Wojciech Leśniak, Wojciech Szczepanik, Kazimierz Gatner, Adam Jezierski, Marek Smoluch, Wojciech Bal

Research output: Contribution to journalArticlepeer-review

Abstract

Coordination of Cu(II) to lincomycin was studied by potentiometry, UV-Vis, circular dichroism (CD), EPR, NMR, cyclic voltammetry (CV) and ESI-MS. Only mononuclear complexes of stoichiometries ranging from CuL to CuH-3L were found. In the main species present at neutral pH, CuH-2L, lincomycin bonds Cu(II) through both of its nitrogen donors, and a deprotonated oxygen donor at C4 of the sugar moiety. High pressure liquid chromatography (HPLC) of products of 2′-deoxy guano sine (dG) oxidation and agarose gel electrophoresis of plasmid DNA confirmed that lincomycin complexes effectively facilitate dG oxidation by H2O2, but are not able to cleave double-stranded plasmid DNA.

Original languageEnglish (US)
Pages (from-to)189-200
Number of pages12
JournalJournal of Inorganic Biochemistry
Volume84
Issue number3-4
DOIs
StatePublished - Jan 1 2001
Externally publishedYes

Keywords

  • 2′-Deoxyguanosine oxidation
  • Copper(II) complexes
  • Cu(II)/Cu(III) redox pair
  • Lincomycin
  • Potentiometry
  • Spectroscopy
  • pBR322 plasmid cleavage

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry

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