Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/3556
Title: Effectiveness and limits of magnetic resonance techniques in the identification of different coordination pathways of the Mn(II) in the presence of biomacromolecules
Authors: Basosi, Riccardo 
Laschi, Franco 
Rossi, Claudio 
Issue Date: 1981
Project: None 
Journal: POLYMER BULLETIN
Abstract: 
Magnetic resonance techniques yield important information on different coordination behaviour of Mn(II) in the presence of biomacromolecules. A preliminary study on model systems is necessary to have a deeper insight on dynamics and structural aspects. The EPR technique is not able to identify a binding interaction between Trp and manganous ion when the metal is bonded to the Imidazole. Proton shift NMR studies on the Mn(II)-5ATP-Imid complex evidenziate a ternary system formation and a stacking interaction between the imidazole-ring and the nucleotide purine-moiety. An EPR and NMR combined analysis on the Mn(II)-5ATP-Trp system points out a stacking interaction and the simultaneous presence of a covalent binding between the metal ion and the biomolecules. The role of the metal ion to favour this coordination is suggested.
Description: 
21996
URI: http://hdl.handle.net/20.500.12779/3556
ISSN: 0170-0839
DOI: 10.1007/BF00254712
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