Item type |
デフォルトアイテムタイプ(フル)(1) |
公開日 |
2019-09-10 |
タイトル |
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タイトル |
Cytotoxic Desulfated Saponin from Holothuria atra Predicted to Have High Binding Affinity to the Oncogenic Kinase PAK1: A Combined In Vitro and In Silico Study |
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言語 |
en |
作成者 |
Shahinozzaman, Md
Ishii, Takahiro
Takano, Ryo
Halim, Mohammad A.
Hossain, Amzad Md
Tawata, Shinkichi
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Holothuria atra |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
desulfated echinoside B |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
molecular docking |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
molecular dynamics |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
Sea cucumbers have long been utilized in foods and Asiatic folk medicines for their nutritive and health benefits. Herein, three sea cucumber species were investigated and Holothuria atra showed the highest cytotoxicity among these. Next, a desulfated saponin, desulfated echinoside B (DEB), was purified from H. atra through bioassay-guided fractionation. LC-ESI-MS (Liquid chromatography-electrospray ionization mass spectrometry) analysis also showed H. atra to be a rich source of saponins. DEB showed cytotoxicity on cancer cells with IC_50 values of 0.5–2.5 μM, and brine shrimps with an IC_50 value of 9.2 μM. In molecular docking studies, DEB was found to bind strongly with the catalytic domain of PAK1 (p21-activated kinase 1) and it showed binding energy of ―8.2 kcal/mol compared to binding energy of ―7.7 kcal/mol for frondoside A (FRA). Both of them bind to the novel allosteric site close to the ATP-binding cleft. Molecular dynamics (MD) simulation demonstrated that DEB can form a more stable complex with PAK1, remaining inside the allosteric binding pocket and forming the maximum number of hydrogen bonds with the surrounding residues. Moreover, important ligand binding residues were found to be less fluctuating in the DEB-PAK1 complex than in the FRA-PAK1 complex throughout MD simulation. Our experimental and computational studies showed that both DEB and FRA can act as natural allosteric PAK1 inhibitors and DEB appeared to be more promising than FRA. |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
論文 |
出版者 |
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言語 |
en |
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出版者 |
MDPI |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ |
journal article |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
識別子 |
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識別子 |
http://hdl.handle.net/20.500.12000/44785 |
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識別子タイプ |
HDL |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.3390/scipharm86030032 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
10.3390/scipharm86030032 |
収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2218-0532 |
収録物名 |
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言語 |
en |
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収録物名 |
Scientia Pharmaceutica |
書誌情報 |
巻 86,
号 3,
p. 1-13,
発行日 2018-08-31
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