Elucidaton of molecular mechanism of remodeling for cardiolipin
Project/Area Number |
26450139
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Bioorganic chemistry
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Research Institution | Kyoto University |
Principal Investigator |
Masato Abe 京都大学, 農学研究科, 助教 (30543425)
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Co-Investigator(Renkei-kenkyūsha) |
OKU Masathide 京都大学, 大学院農学研究科, 助教 (10511230)
|
Project Period (FY) |
2014-04-01 – 2017-03-31
|
Project Status |
Completed (Fiscal Year 2016)
|
Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
Keywords | カルジオリピン / リン脂質 / リモデリング / tafazzin / アシルトランスフェラーゼ / ミトコンドリア / ホスファチジルコリン / リゾカルジオリピン / タファジン / 脂質リモデリング / リポソーム / トランスアシラーゼ / リゾリン脂質 |
Outline of Final Research Achievements |
Remodeling of the acyl chains of cardiolipin (CL) is responsible for final molecular composition of mature CL after de novo CL synthesis in mitochondria. In light of the diversity of the acyl compositions of mature CL between different organisms, the mechanism underlying tafazzin-mediated transacylation remains to be elucidated. We investigated the mechanism responsible for transacylation using purified S. cerevisiae tafazzin with liposomes composed of various sets of acyl donors and acceptors. The results revealed that tafazzin efficiently catalyzes transacylation in liposomal membranes with highly ordered lipid bilayer structure. Tafazzin elicited unique acyl chain specificity against phosphatidylcholine (PC) as follows: linoleoyl (18:2) > oleoyl (18:1) _ palmitoleoyl (16:1) >> palmitoyl (16:0). In these reactions, tafazzin selectively removed the sn-2 acyl chain of PC and transferred it into the sn-1 and sn-2 positions of MLCL isomers at equivalent rates.
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Report
(4 results)
Research Products
(13 results)
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[Journal Article] Bongkrekic Acid Analogue, Lacking One of the Carboxylic Groups of its Parent Compound, Shows Moderate but pH-insensitive Inhibitory Effects on the Mitochondrial ADP/ATP Carrier2015
Author(s)
Atsushi Yamamoto, Keisuke Hasui, Hiroshi Matsuo, Katsuhiro Okuda, Masato Abe, Kenji Matsumoto, Kazuki Harada, Yuya Yoshimura, Takenori Yamamoto, Kazuto Ohkura, Mitsuru Shindo, Yasuo Shinohara
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Journal Title
Chem. Biol. Drug Des.
Volume: 86
Issue: 5
Pages: 1304-1322
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Efficient Total Synthesis of Bongkrekic Acid and Apoptosis Inhibitory Activity of its Analogues2015
Author(s)
K. Matsumoto, M. Suyama, S. Fujita, T. Moriwaki, Y. Sato, Y. Aso, S. Muroshita, H. Matsuo, K. Monda, K. Okuda, M. Abe, H. Fukunaga, A. Kano, M. Shindo,*
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Journal Title
Chem. Eur. J.
Volume: 21
Issue: 32
Pages: 11590-11602
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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