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Issue 6, 2004
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Microscopic ionization mechanism of inositol tetrakisphosphates

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Abstract

Based on 31P-NMR titration data, microscopic ionization equilibria of several myo-inositol tetrakisphosphates have been fully resolved. The problem is solved based on a cluster expansion technique of the free energy of the microstate, which leads to a straightforward parameterization and drastically reduces the number of necessary parameters needed to specify the microscopic equilibria. From the NMR titration data, we obtain all microscopic ionization constants as well as the probabilities of the different microstates. This information permits discussing ionization mechanism of these molecules in full detail.

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Article information


Submitted
11 Nov 2003
Accepted
14 Jan 2004
First published
10 Feb 2004

Phys. Chem. Chem. Phys., 2004,6, 1144-1151
Article type
Paper

Microscopic ionization mechanism of inositol tetrakisphosphates

M. Borkovec and B. Spiess, Phys. Chem. Chem. Phys., 2004, 6, 1144
DOI: 10.1039/B314412G

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