Investigation of metal-oligonucleotide complexes by nanoelectrospray tandem mass spectrometry in the positive mode
| Autor: | Stefan Schürch, Selina T. M. Monn |
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| Rok vydání: | 2004 |
| Předmět: |
Electrospray
Spectrometry Mass Electrospray Ionization Collision-induced dissociation Chemistry Metal ions in aqueous solution Inorganic chemistry Oligonucleotides Tandem mass spectrometry Dissociation (chemistry) Nucleobase Metal Crystallography Fragmentation (mass spectrometry) Structural Biology Metals visual_art 540 Chemistry visual_art.visual_art_medium 570 Life sciences biology Nanotechnology Spectroscopy |
| Zdroj: | Monn, Selina T. M.; Schürch, Stefan (2005). Erratum to: Investigation of metal-oligonucleotide complexes by nanoelectrospray tandem mass spectrometry in the positive mode. Journal of the American Society for Mass Spectrometry, 16(5), p. 799. Springer-Verlag 10.1016/j.jasms.2005.03.005 Monn, Selina T. M.; Schürch, Stefan (2005). Investigation of metal-oligonucleotide complexes by nanoelectrospray tandem mass spectrometry in the positive mode. Journal of the American Society for Mass Spectrometry, 16(3), pp. 370-378. Springer-Verlag 10.1016/j.jasms.2004.11.019 |
| ISSN: | 1044-0305 |
| DOI: | 10.1016/j.jasms.2005.03.005 |
| Popis: | The formation and fragmentation of multiply metal-coordinated oligonucleotides was studied by nanoelectrospray tandem mass spectrometry in the positive ion mode. Fundamental aspects of the gas-phase behavior of metal-oligonucleotide complexes are revealed. The addition of transition metal ions, such as iron(II), iron(III), and zinc(II), leads to very stable metal-oligonucleotide complexes which show heavily altered fragmentation patterns in contrast to uncomplexed oligonucleotides. The site of metal ion complexation was located by collision-induced dissociation (CID) experiments. It was found that all three metal ions investigated predominantly coordinate to the central phosphate groups of the oligonucleotides. Furthermore, it is demonstrated that the fragmentation of such complexes depends highly upon the metal ion complexed as well as on the sequence of the nucleobases in the oligonucleotide. |
| Databáze: | OpenAIRE |
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