1H and 13C NMR Studies on M （EGTA） Complexes in Aqueous Solution

1H and 13C NMR Studies on M （EGTA） Complexes in Aqueous Solution

EGTA is a kind of highly selective calcium-binding chelate, whose preference for the binding of Ca2+ over Mg2+ is about 106, therefore it is considered as a model for the binding sites in calcium-binding proteins. Although the crystal structure of Ca （EGTA） has been reported, its structure in aqueou...

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Veröffentlicht in:中国科学通报：英文版 1993 (22), p.1880-1883
1. Verfasser: 张善荣 任吉民 吴亦洁 刘爱琢 裴奉奎
Format: Artikel
Sprache:eng
Schlagworte:
dynamic
EGTA
intramolecular
ion
metal
NMR
process
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Zusammenfassung:EGTA is a kind of highly selective calcium-binding chelate, whose preference for the binding of Ca2+ over Mg2+ is about 106, therefore it is considered as a model for the binding sites in calcium-binding proteins. Although the crystal structure of Ca （EGTA） has been reported, its structure in aqueous solution is still unclear. Considering that Ca2+ ionic radius （0.99（?）） falls in the range for those of lanthanide series （1.06—0.85（?））, Ln （EGTA） （Ln=La, Y, Lu and Sc） is studied in this note so as to deduce
ISSN:2095-9273