MICROCALORIMETRIC STUDIES ON THE FORMATION OF MAGNESIUM COMPLEXES OF ADENINE NUCLEOTIDES
- 1 October 1969
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 64 (2) , 763-770
- https://doi.org/10.1073/pnas.64.2.763
Abstract
Values for the thermodynamic quantities (Δ F , Δ H , Δ S ) in reactions in which complexes of adenine nucleotides with magnesium ion (ATPMg -- , ADPMg - , AMPMg) are formed have been obtained by a microcalorimetric technique by using an isothermic Calvet's apparatus. Experimental values measured at ionic strength μ = 0.2 indicate that complex formation reactions are driven by the entropic factor and that stability of complexes increases with length of the phosphate chain.Keywords
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