高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (4): 605.

• 研究论文 • 上一篇    下一篇

海葵毒素多肽的分离和初步表征

禚如朋1, 付宏征1, 李军1, 张礼和1, 仲崇波2, 王晓良2, 林文翰1   

  1. 1. 北京大学天然药物及仿生药物国家重点实验室, 北京 100083;
    2. 中国医学科学院药物研究所, 北京 100050
  • 收稿日期:2000-12-15 出版日期:2002-04-24 发布日期:2002-04-24
  • 通讯作者: 林文翰(1960年出生),男,药学博士,教授,主要从事天然药物化学研究.
  • 基金资助:

    国家自然科学基金(批准号:30171106)资助.

Isolation and Characterization of Toxin Polypeptides fromSea Anemone Actinia cari

ZHUO Ru-Peng1, FU Hong-Zheng1, LI Jun1, ZHANG Li-He1, ZHONG Chong-Bo2, WANG Xiao-Liang2, LIN Wen-Han1   

  1. 1. National Key Laboratory of Natural and Biomimetic Drugs, Peking Beijing 100083, China;
    2. Institute of Materia Chinese Academy of Medicad Sciences, Beijing 100050, China
  • Received:2000-12-15 Online:2002-04-24 Published:2002-04-24

摘要: 经冻融法提取,丙酮沉淀,SPSephadexC-25强离子交换和HPLCODS反相色谱层析,从海葵(Ac-tiniacari)中提纯到2个新的毒素多肽,命名为RSAPⅢ和RSAPⅣ。经SDS-聚丙烯酰胺凝胶电泳(SDS-PAGE)和基质辅助激光解吸电离飞行时间质谱(MAI-DITOP-MS)鉴定,RSAPⅢ和RSAPⅣ均为单一成分,分子量分别为5327和5310,初步钠通道药理学实验表明,RSAPⅢ对豚鼠心室肌细胞钠通道表现出活性,使钠离子内流减少,起阻滞作用。

关键词: 海葵(Actinia cari), 海葵毒素, 分离纯化

Abstract: Two toxin polypeptides desgnated RSAPⅢ and RSAP Ⅳ were isolated from sea anemone Ac-tinia cari.Toxins isolation was accomplished by freezing-thawing extraction, fractional acetone precipita-tion, cation exchange chromatography on SP Sephadex C-25 and reverse phase HPLC on ODS C18. Theywere found to be homogenous by SDS-PAGE, and their moleculax weight at m/z 5327 and m/z 5310 re-spectively were determined by MALDI-TOF-MS.RSAP Ⅲ possessed a bioactivity on sodinm channel inGuinea pig cardiac cell to inhibit inward Na+ currents, which is contrary to that of all sea anemone toxinsisolated so far.

Key words: Actinia cari, Sea anemone toxin, Isolation and purification

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