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Calorimetric and freeze-etch study of the influence of Mg2+ on the thermotropic behaviour of phosphatidylglycerol

✍ Scribed by J.Th. Ververgaert; B. De Kruyff; A.J. Verkleij; J.F. Tocanne; L.L.M. Van Deenen

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
345 KB
Volume
14
Category
Article
ISSN
0009-3084

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✦ Synopsis

In the presence of Mg 2+ ions phosphatidylglycerol shows supercooling which leads to the formation of a metastable gel phase. This contrasts with the behaviour of this negatively charged phospholipid in the presence of Ca 2+ ions (Biochim. Biophys. Acta 339 (1974) 432). It is demonstrated that the heat content of this phospholipid is dependent on the ionic environment.

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