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Please use this identifier to cite or link to this item: http://hdl.handle.net/10087/4840

Title: NaCl-dependent formation of the highly crystalline phase in sufficiently hydrated dimyristoylphosphatidylglycerol bilayers
Authors: Kinoshita, Masanao
Kato, Satoru
Takahashi, Hiroshi
Issue Date: Sep-2009
Publisher: Elsevier Science Ireland
Citation: Chemistry and Physics of Lipids. 161(1), 1-10 (2009)
Abstract: We investigated the low-temperature phase behavior of dimyristoylphosphatidylglycerol (DMPG) bilayers in the presence of high concentration of NaCl (≥100 mM). Differential scanning calorimetry showed that the highly crystalline (HC) phase grew after an initial delay period when DMPG bilayers were sufficiently hydrated and incubated at 1˚C in the presence of more than 100 mM NaCl. The HC phase formation reached a plateau, the level of which depended on NaCl concentration; all the lipids were unable to be in the HC phase at the plateau stage without a quite high concentration of NaCl. Since electron microscopic observations suggested that the HC phase formed coexists with the precursor phases in a closed vesicle, elastic constrain and/or shortage of free sodium ions in the inside of the closed vesicle may prevent the complete transition into the HC phase.
URI: http://hdl.handle.net/10087/4840
ISSN: 00093084
Appears in Collections:学術雑誌論文

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