『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]
招待 (推奨):
審査 (推奨):
カテゴリ (推奨):
共著種別 (推奨):
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. (英) Tada Kaori (日) (読)
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2. (英) Miyazaki Eri (日) (読)
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3.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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4.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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5.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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6.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) Barotropic and thermotropic bilayer phase behavior of positional isomers of unsaturated mixed-chain phosphatidylcholines  (日)    [継承]
副題 (任意):
要約 (任意): (英) The bilayer phase transitions of six kinds of mixed-chain phosphatidylcholines (PCs) with an unsaturated acyl chain in the sn-1 or sn-2 position, 1-oleoyl-2-stearoyl- (OSPC), 1-stearoyl-2-oleoyl- (SOPC), 1-oleoyl-2-palmitoyl- (OPPC), 1-palmitoyl-2-oleoyl- (POPC), 1-oleoyl-2-myristoyl- (OMPC) and 1-myristoyl-2-oleoyl-sn-glycero-3-phosphocholine (MOPC), were observed by means of differential scanning calorimetry (DSC) and high-pressure light transmittance measurements. Bilayer membranes of SOPC, POPC and MOPC with an unsaturated acyl chain in the sn-2 position exhibited only one phase transition, which was identified as the main transition between the lamellar gel (L(beta)) and liquid crystalline (L(alpha)) phases. On the other hand, the bilayer membranes of OSPC, OPPC and OMPC with an unsaturated acyl chain in the sn-1 position exhibited not only the main transition but also a transition from the lamellar crystal (L(c)) to the L(beta) (or L(alpha)) phase. The stability of their gel phases was markedly affected by pressure and chain length of the saturated acyl chain in the sn-2 position. Considering the effective chain lengths of unsaturated mixed-chain PCs, the difference in the effective chain length between the sn-1 and sn-2 acyl chains was proven to be closely related to the temperature difference of the main transition. That is, a mismatch of the effective chain length promotes a temperature difference of the main transition between the positional isomers. Anomalously small volume changes of the L(c)/L(alpha) transition for the OPPC and OMPC bilayers were found despite their large enthalpy changes. This behavior is attributable to the existence of a cis double bond and to significant inequivalence between the sn-1 and sn-2 acyl chains, which brings about a small volume change for chain melting due to loose chain packing, corresponding to a large partial molar volume, even in the L(c) phase. Further, the bilayer behavior of unsaturated mixed-chain PCs containing an unsaturated acyl chain in the sn-1 or sn-2 position was well explained by the chemical-potential diagram of a lipid in each phase.  (日)    [継承]
キーワード (推奨): 1. (英) Biophysical Phenomena (日) (読) [継承]
2. (英) Calorimetry, Differential Scanning (日) (読) [継承]
3. (英) Ethylene Glycol (日) (読) [継承]
4. (英) Isomerism (日) (読) [継承]
5. (英) Lipid Bilayers (日) (読) [継承]
6. (英) Phase Transition (日) (読) [継承]
7. (英) Phosphatidylcholines (日) (読) [継承]
8. (英) Pressure (日) (読) [継承]
9. (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
 (NLM Catalog  (Scopus  (CrossRef (Scopus information is found. [need login])
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(必須): 1788 [継承]
(必須): 5 [継承]
(必須): 1056 1063 [継承]
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年月日 (必須): 西暦 2009年 5月 初日 (平成 21年 5月 初日) [継承]
URL (任意):
DOI (任意): 10.1016/j.bbamem.2009.02.008    (→Scopusで検索) [継承]
PMID (任意): 19233121    (→Scopusで検索) [継承]
NAID (任意):
WOS (任意): 000266190600016 [継承]
Scopus (任意): 2-s2.0-65249097838 [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 ● Kaori Tada, Eri Miyazaki, Masaki GOTO, Nobutake Tamai, Hitoshi Matsuki and Shoji Kaneshina : Barotropic and thermotropic bilayer phase behavior of positional isomers of unsaturated mixed-chain phosphatidylcholines, Biochimica et Biophysica Acta (BBA) - Biomembranes, Vol.1788, No.5, 1056-1063, 2009.
欧文冊子 ● Kaori Tada, Eri Miyazaki, Masaki GOTO, Nobutake Tamai, Hitoshi Matsuki and Shoji Kaneshina : Barotropic and thermotropic bilayer phase behavior of positional isomers of unsaturated mixed-chain phosphatidylcholines, Biochimica et Biophysica Acta (BBA) - Biomembranes, Vol.1788, No.5, 1056-1063, 2009.

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