『徳島大学 教育・研究者情報データベース (EDB)』---[学外] /
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種別 (必須): 学術論文 (審査論文) [継承]
言語 (必須): 英語 [継承]
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カテゴリ (推奨):
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学究種別 (推奨):
組織 (推奨): 1.徳島大学.工学部.生物工学科.生物機能工学講座 [継承]
著者 (必須): 1.後藤 優樹 ([徳島大学.大学院社会産業理工学研究部.生物資源産業学域.応用生命系.応用生物資源学分野]/[徳島大学.生物資源産業学部.生物資源産業学科.応用生命講座])
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2.楠部 真崇
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3.玉井 伸岳 ([徳島大学.大学院社会産業理工学研究部.生物資源産業学域.応用生命系.応用生物資源学分野]/[徳島大学.生物資源産業学部.生物資源産業学科.応用生命講座])
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学籍番号 (推奨):
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4.松木 均 ([徳島大学.大学院社会産業理工学研究部.生物資源産業学域.応用生命系.応用生物資源学分野]/[徳島大学.生物資源産業学部.生物資源産業学科.応用生命講座])
役割 (任意): (英)   (日) 計画,考察   [継承]
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学籍番号 (推奨):
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5.金品 昌志
役割 (任意): (英)   (日) 計画,解析,考察   [継承]
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題名 (必須): (英) Effect of hydrostatic pressure on the bilayer phase behavior of symmetric and asymmetric phospholipids with the same total chain length  (日)    [継承]
副題 (任意):
要約 (任意): (英) The bilayer phase transitions of palmitoylstearoyl-phosphatidylcholine (PSPC), diheptadecanoyl-PC (C17PC) and stearoylpalmitoyl-PC (SPPC) which have the same total carbon numbers in the two acyl chains were observed by differential scanning calorimetry and high-pressure optical method. As the temperature increased, these bilayers exhibited four phases of the subgel (Lc), lamellar gel (L beta'), ripple gel (P beta') and liquid crystal (L alpha), in turn. The Lc phase was observed only in the first heating scan after cold storage. The temperatures of the phase transitions were almost linearly elevated by applying pressure. The temperature-pressure phase diagrams and the thermodynamic quantities associated with the phase transitions were compared among the lipid bilayers. For all the bilayers studied, the pressure-induced interdigitated gel (L beta I) phase appeared above the critical interdigitation pressure (CIP) between the L beta' and P beta' phases. The CIPs for the PSPC, C17PC and SPPC bilayers were found to be 50.6, 79.1 and 93.0 MPa, respectively. Contribution of two acyl chains to thermodynamic properties for the phase transitions of asymmetric PSPC and SPPC bilayers was not even. The sn-2 acyl chain lengths of asymmetric PCs governed primarily the bilayer properties. The fluorescence spectra of Prodan in lipid bilayers showed the emission maxima characteristic of bilayer phases, which were dependent on the location of Prodan in the bilayers. Second derivative of fluorescent spectrum exhibited the original emission spectrum of Prodan to be composed of the distribution of Prodan into multiple locations in the lipid bilayer. The F''497/F''430 value, a ratio of second derivative of fluorescence intensity at 497 nm to that at 430 nm, is decisive evidence whether bilayer interdigitation will occur. With respect to the L beta'/L beta I phase transition in the SPPC bilayer, the emission maximum of Prodan exhibited the narrow-range red-shift from 441 to 449 nm, indicating that the L beta I phase in the SPPC bilayer has a less polar "pocket" formed by a space between uneven terminal methyl ends of the sn-1 and sn-2 chains, in which the Prodan molecule remains stably.  (日)    [継承]
キーワード (推奨): 1. (英) 2-Naphthylamine (日) (読) [継承]
2. (英) Calorimetry, Differential Scanning (日) (読) [継承]
3. (英) Hydrostatic Pressure (日) (読) [継承]
4. (英) Lipid Bilayers (日) (読) [継承]
5. (英) Phase Transition (日) (読) [継承]
6. (英) Phosphatidylcholines (日) (読) [継承]
7. (英) Phospholipids (日) (読) [継承]
8. (英) Spectrometry, Fluorescence (日) (読) [継承]
9. (英) Temperature (日) (読) [継承]
10. (英) Thermodynamics (日) (読) [継承]
発行所 (推奨): Elsevier Science [継承]
誌名 (必須): Biochimica et Biophysica Acta (BBA) - Biomembranes ([Elsevier Science])
(pISSN: 0005-2736)

ISSN (任意): 0005-2736
ISSN: 0005-2736 (pISSN: 0005-2736, eISSN: 1879-2642)
Title: Biochimica et biophysica acta. Biomembranes
Title(ISO): Biochim Biophys Acta Biomembr
Publisher: Elsevier BV
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(必須): 1067 1078 [継承]
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年月日 (必須): 西暦 2008年 3月 27日 (平成 20年 3月 27日) [継承]
URL (任意):
DOI (任意): 10.1016/j.bbamem.2007.12.009    (→Scopusで検索) [継承]
PMID (任意): 18190778    (→Scopusで検索) [継承]
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備考 (任意): 1.(英) Article.Affiliation: Department of Biological Science and Technology, Faculty of Engineering, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan.  (日)    [継承]
2.(英) Article.PublicationTypeList.PublicationType: Journal Article  (日)    [継承]

標準的な表示

和文冊子 ● Masaki GOTO, Masataka Kusube, Nobutake Tamai, Hitoshi Matsuki and Shoji Kaneshina : Effect of hydrostatic pressure on the bilayer phase behavior of symmetric and asymmetric phospholipids with the same total chain length, Biochimica et Biophysica Acta (BBA) - Biomembranes, Vol.1778, No.4, 1067-1078, 2008.
欧文冊子 ● Masaki GOTO, Masataka Kusube, Nobutake Tamai, Hitoshi Matsuki and Shoji Kaneshina : Effect of hydrostatic pressure on the bilayer phase behavior of symmetric and asymmetric phospholipids with the same total chain length, Biochimica et Biophysica Acta (BBA) - Biomembranes, Vol.1778, No.4, 1067-1078, 2008.

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