Structure and absolute configuration of karlotoxin-2, an ichthyotoxin from the marine dinoflagellate Karlodinium veneficum.

Structure and absolute configuration of karlotoxin-2, an ichthyotoxin from the marine dinoflagellate Karlodinium veneficum.
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DOI:
10.1021/ja9091853
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发表时间:
2010-03-17
影响因子:
15
通讯作者:
Hamann, Mark T.
Hamann, Mark T.
中科院分区:
化学1区
文献类型:
--
作者:
Peng, Jiangnan;Place, Allen R.;Yoshida, Wesley;Anklin, Clemens;Hamann, Mark T.

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为了确定马里兰州河口养殖设施中反复发生鱼类死亡的原因,从静脉卡尔甲藻(Karlodinium veneficum)中分离到一种具有溶血性、细胞毒性和鱼类毒性的毒素,称为Karlotoxin-2(KmTx 2)。通过详细的1D和2D NMR光谱(包括2D INADEQUATE)阐明了KmTx 2的结构。使用基于J的构型分析和降解产物与合成对照品的比较,确定karlotoxin-2的相对和绝对构型。
In an attempt to determine the cause of repeated fish kills in an estuarine aquaculture facility in Maryland, a toxin was isolated from Karlodinium veneficum with hemolytic, cytotoxic, and ichthyotoxic properties, which was referred to as karlotoxin-2 (KmTx2). The structure of KmTx2 was elucidated by means of detailed 1D and 2D NMR spectra including 2D INADEQUATE. The relative and absolute configuration of karlotoxin-2 was determined using J-based configuration analysis and comparison of degradation products with synthetic controls.
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