title: [Complexes of DNA with trivalent metal ions in presence of manganese ions].
abstract: The interaction of DNA with Fe3+, Al3+, Co(NH3)6(3+) in a solution containing MnCl2 was studied. It was shown that there exists a competition for the binding sites between Mn2+ and Al3+, while the binding of Mn2+ to DNA does not depend on the presence of Fe3+ and Co(NH3)6(3+) in solution. We proposed that Fe3+ and Co(NH3)6(3+) ions prefer to bind to phosphates, and Al3+ ions are capable to bind to the nitrogen bases of DNA.
authors.affiliation: Physical Department, St. Petersburg State University, Ul'yanovskaya ul. 1, Petrodvorets, 198904 Russia.
authors.forename: N A
authors.initials: NA
authors.lastname: Kas'ianenko
authors.forename: L V
authors.initials: LV
authors.lastname: Plotnikova
authors.forename: A V
authors.initials: AV
authors.lastname: Zanina
authors.forename: A Sh
authors.initials: ASh
authors.lastname: Anderzhanov
authors.forename: S
authors.initials: S
authors.lastname: Defrenne
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D002412:Cations; D002942:Circular Dichroism; D003035:Cobalt / Q000737:chemistry*; D004247:DNA / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D017895:Manganese Compounds / Q000737:chemistry*; D009690:Nucleic Acid Conformation; D012996:Solutions
chemical_list: D017607:Aluminum Compounds; D002412:Cations; D005290:Ferric Compounds; D017895:Manganese Compounds; D012996:Solutions; D003035:Cobalt; D004247:DNA
vernacular_title: Izuchenie kompleksov DNK s trekhvalentnymi ionami metallov v prisutstvii ionov margantsa.