Structures of new amphidinols with truncated polyhydroxyl chain and their membrane-permeabilizing activities

Nagy Morsy, Toshihiro Houdai, Shigeru Matsuoka, Nobuaki Matsumori, Seiji Adachi, Tohru Oishi, Michio Murata, Takashi Iwashita, Tsuyoshi Fujita

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Two new homologues of amphidinols (AM14 and AM15) were isolated from the cultured dinoflagellate Amphidinium klebsii. The structures were elucidated on the basis of 2D NMR and collision-induced dissociation MS/MS and turned out to be closely related homologues of AM7. Their weak membrane-disrupting activity indicates that the hydrophobic polyene chain is essential for the potent biological activities. Structure-activity relationship for the polyhydroxyl part was then examined with use of AM homologues possessing various chain lengths, indicating that the pore size of the channel/lesion formed by AMs was not greatly affected by the length of the polyhydroxyl chain.

Original languageEnglish
Pages (from-to)6548-6554
Number of pages7
JournalBioorganic and Medicinal Chemistry
Volume14
Issue number19
DOIs
Publication statusPublished - Oct 1 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry

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