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NMR conformational analysis of complexes of the carboxylic ionophore nigericin with Na + and K +
Author(s) -
Beloeil JeanClaude,
Biou Valérie,
Dauphin Gérard,
Garnier Jean,
Morellet Nelly,
Vaufrey Françoise
Publication year - 1994
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260320204
Subject(s) - nigericin , chemistry , ionophore , ion , crystallography , proton nmr , carbon 13 nmr , stereochemistry , organic chemistry , calcium , membrane , biochemistry
The conformations of the complexes formed by the ionophore nigericin with Na + and K + in CDCl 3 solution determined by ROESY NMR and distance geometry computations are in good agreement with the X‐ray crystallographic data. The structures with the Na + ion are more compact than those with the K + ion, as the latter have a wider cage for the ion.