Cyclic Peptides from the Soft Coral-Derived Fungus Aspergillus sclerotiorum SCSIO 41031.

Cyclic Peptides from the Soft Coral-Derived Fungus Aspergillus sclerotiorum SCSIO 41031.
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DOI:
10.3390/md19120701
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发表时间:
2021-12-10
期刊:
影响因子:
5.4
通讯作者:
Liu Y
Liu Y
中科院分区:
医学2区
文献类型:
--
作者:
Long J;Chen Y;Chen W;Wang J;Zhou X;Yang B;Liu Y

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三个新的环状六肽,sclerotides C-E(1-3),和一个新的lipodepsipeptide,scopularide I(4),以及一个已知的环状六肽sclerotide A(5),从软珊瑚来源的真菌:Aspergillus sclerotiorum SCSIO 41031的发酵大米培养物中分离得到。通过1D和2D NMR光谱分析、Marveland方法、ESIMS/MS分析和单晶X-射线衍射分析确定了新肽的结构。东莨菪碱Ⅰ(4)对人鼻咽癌细胞株HONE-EBV有较弱的细胞毒作用,IC_(50)为10.1 μM。
Three novel cyclic hexapeptides, sclerotides C–E (1–3), and a new lipodepsipeptide, scopularide I (4), together with a known cyclic hexapeptide sclerotide A (5), were isolated from fermented rice cultures of a soft coral-derived fungus: Aspergillus sclerotiorum SCSIO 41031. The structures of the new peptides were determined by 1D and 2D NMR spectroscopic analysis, Marfey’s method, ESIMS/MS analysis, and single crystal X-ray diffraction analysis. Scopularide I (4) exhibited acetylcholinesterase inhibitory activity with an IC50 value of 15.6 μM, and weak cytotoxicity against the human nasopharyngeal carcinoma cell line HONE-EBV with IC50 value of 10.1 μM.
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