The effect of Mg2+ ions on Cu2-alkaline phosphatase has been investigated with respect to the coordination geometry of the copper ion in presence and in absence of inorganic phosphate at pH 6.0. It is somewhat puzzling that Cu2AP binds only one phosphate ion giving rise to only one kind of ESR spectra consistent with a tetragonal structure. Cu2Mg4AP binds two phosphate ions, the resulting geometry being probably pseudotetrahedral. Water 1H T-11 measurements between 4 and 60 MHz have shown that water is present in the coordination sphere of the former derivative but not in the latter. © 1983.
Investigation of the coppermagnesiumalkaline phosphatase system
MALDOTTI, Andrea;TRAVERSO, Orazio
1983
Abstract
The effect of Mg2+ ions on Cu2-alkaline phosphatase has been investigated with respect to the coordination geometry of the copper ion in presence and in absence of inorganic phosphate at pH 6.0. It is somewhat puzzling that Cu2AP binds only one phosphate ion giving rise to only one kind of ESR spectra consistent with a tetragonal structure. Cu2Mg4AP binds two phosphate ions, the resulting geometry being probably pseudotetrahedral. Water 1H T-11 measurements between 4 and 60 MHz have shown that water is present in the coordination sphere of the former derivative but not in the latter. © 1983.File in questo prodotto:
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