Abstract:
:A series of ophiobolins were isolated from a fungal extract based on their nematocidal activity. These compounds are non-competitive inhibitors of ivermectin binding to membranes prepared from the free-living nematode, Caenorhabditis elegans, with an inhibition constant of 15 microM. The ophiobolins which were most potent in the biological assays, ophiobolin C and ophiobolin M, were also the most potent compounds when evaluated in a C. elegans motility assay. These data suggest that the nematocidal activity of the ophiobolins is mediated via an interaction with the ivermectin binding site. The isolation, structure and biological activity of ophiobolins have been described.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Tsipouras A,Adefarati AA,Tkacz JS,Frazier EG,Rohrer SP,Birzin E,Rosegay A,Zink DL,Goetz MA,Singh SB,Schaeffer JMdoi
10.1016/0968-0896(96)00036-3subject
Has Abstractpub_date
1996-04-01 00:00:00pages
531-6issue
4eissn
0968-0896issn
1464-3391pii
0968089696000363journal_volume
4pub_type
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