Microcalorimetric study of magnesium-adenosine triphosphate ternary complex

Using an original microcalorimetric method, the existence of the Mg2ATP ternary chelate has been studied. The thermodynamic parameters of this complex are delta H = 7.2 +/- 0.5 kJ mole-1 and K = 49 +/- 9 M-1. These values are compared with those previously obtained for binary chelate Mg ATP2-. A pos...

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Bibliographic Details
Published in:Journal of bioenergetics and biomembranes 1982-06, Vol.14 (3), p.171-179
Main Authors: Sari, J C, Hadida, M, Chauvet-Monges, A M, Crevat, A
Format: Article
Language:English
Subjects:
Adenosine Triphosphate
Calorimetry
Thermodynamics
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Summary:Using an original microcalorimetric method, the existence of the Mg2ATP ternary chelate has been studied. The thermodynamic parameters of this complex are delta H = 7.2 +/- 0.5 kJ mole-1 and K = 49 +/- 9 M-1. These values are compared with those previously obtained for binary chelate Mg ATP2-. A possible regulation role of Mg2ATP is discussed.
ISSN:0145-479X
1573-6881
DOI:10.1007/bf00745018