Physicochemical characterization of tetraetherlipids from thermoplasma acidophilum. IV. Calorimetric studies on the miscibility of tetraetherlipids with dipalmitoyl phosphatidylcholine and dipalmitoyl phosphatidylglycerol
- By means of differential thermoanalysis, the miscibility of the main polar tetraether lipid of Thermoplasma acidophilum with two ester lipids, dipalmitoyl phosphatidylcholine and dipalmitoyl phosphatidylglycerol, resp., in the presence of excess water was studied. It is shown that with increasing fraction of tetraether lipid in the mixture, the transition range of dipalmitoyl phosphatidylcholine is broadened and the temperature of the maximum heat flow (Tm) is shifted to lower temperatures; furthermore, the enthaply change (ΔH) of the transition declines. Similar results were obtained with mixtures of tetraether lipid with dipalmitoyl phosphatidylglycerol. It is therefore concluded that the main polar tetraether lipid of Thermoplasma acidophilum , which essentially forms monomolecular layers, is able to form stable common phases with bilayer-forming ester lipids. Miscibility of the tetraether lipid with dipalmitoyl phosphatidylglycerol, which are both monovalent anions at neutral pH, is also observed in the presence of high proton or calcium ion concentrations.
Verfasserangaben: | Detlef BlöcherGND, Raymund Gutermann, Birgit Henkel, Klaus RingGND |
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URN: | urn:nbn:de:hebis:30:3-818486 |
DOI: | https://doi.org/10.1515/znc-1985-9-1003 |
ISSN: | 0939-5075 |
ISSN: | 1865-7125 |
Titel des übergeordneten Werkes (Deutsch): | Zeitschrift für Naturforschung, C |
Verlag: | Verlag der Zeitschrift für Naturforschung |
Verlagsort: | Tübingen |
Dokumentart: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Veröffentlichung (online): | 02.06.2014 |
Jahr der Erstveröffentlichung: | 1985 |
Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Datum der Freischaltung: | 05.02.2024 |
Freies Schlagwort / Tag: | Archaebacterial Lipids; Differential Thermoanalysis; Mixed Lipid Phases; Thermoplasma acidophilum Membranes; Tetraetherlipids |
Jahrgang: | 40.1985 |
Ausgabe / Heft: | 9-10 |
Seitenzahl: | 6 |
Erste Seite: | 606 |
Letzte Seite: | 611 |
Institute: | Medizin |
Biochemie, Chemie und Pharmazie / Biochemie und Chemie | |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Sammlungen: | Universitätspublikationen |
Lizenz (Deutsch): | Creative Commons - Namensnennung-Nicht kommerziell-Keine Bearbeitung 3.0 |