Wechselwirkung des Vanadyl(IV)-Kations mit Nucleotiden in wäßriger Lösung

The interaction of VO2+ with mono-, di- and trinucleotides and with some of the related nucleosides and bases, was investigated spectrophotom etrically at pH = 4.9. The results point to a preferential interaction of the cation with the phosphate groups of all the nucleotides whereas no interaction w...

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Detalles Bibliográficos
Autores principales: Urretavizcaya, Guillermina, Baran, Enrique José
Formato: Articulo
Lenguaje:Alemán
Publicado: 1987
Materias:
Química
Vanadyl(IV)
Nucleotide complexes
Electronic spectra
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/120218
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-120218
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Alemán
topic Química
Vanadyl(IV)
Nucleotide complexes
Electronic spectra
spellingShingle Química
Vanadyl(IV)
Nucleotide complexes
Electronic spectra
Urretavizcaya, Guillermina
Baran, Enrique José
Wechselwirkung des Vanadyl(IV)-Kations mit Nucleotiden in wäßriger Lösung
topic_facet Química
Vanadyl(IV)
Nucleotide complexes
Electronic spectra
description The interaction of VO2+ with mono-, di- and trinucleotides and with some of the related nucleosides and bases, was investigated spectrophotom etrically at pH = 4.9. The results point to a preferential interaction of the cation with the phosphate groups of all the nucleotides whereas no interaction with the nucleosides and bases was detected. The vanadyl coordination sphere shows some distortive effects in the case of mononucleotides whereas it appears more regular in the case of di- and trinucleotides. At high pH-values the cation interacts with the deprotonated OH-groups of the ribose moieties. This type of interaction was confirmed by direct measurements with pure ribose and ribose-5'-phosphate, and it was absent in the case of thymidine nucleotides, in which ribose is replaced by 2'-deoxyribose.
format Articulo
Articulo
author Urretavizcaya, Guillermina
Baran, Enrique José
author_facet Urretavizcaya, Guillermina
Baran, Enrique José
author_sort Urretavizcaya, Guillermina
title Wechselwirkung des Vanadyl(IV)-Kations mit Nucleotiden in wäßriger Lösung
title_short Wechselwirkung des Vanadyl(IV)-Kations mit Nucleotiden in wäßriger Lösung
title_full Wechselwirkung des Vanadyl(IV)-Kations mit Nucleotiden in wäßriger Lösung
title_fullStr Wechselwirkung des Vanadyl(IV)-Kations mit Nucleotiden in wäßriger Lösung
title_full_unstemmed Wechselwirkung des Vanadyl(IV)-Kations mit Nucleotiden in wäßriger Lösung
title_sort wechselwirkung des vanadyl(iv)-kations mit nucleotiden in wäßriger lösung
publishDate 1987
url http://sedici.unlp.edu.ar/handle/10915/120218
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AT baranenriquejose wechselwirkungdesvanadylivkationsmitnucleotideninwaßrigerlosung
AT urretavizcayaguillermina interactionofthevanadylivcationwithnucleotidesinaqueoussolution
AT baranenriquejose interactionofthevanadylivcationwithnucleotidesinaqueoussolution
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