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pubmed:abstractText |
A new ryanodine-binding inhibitor, verticilide, was isolated from the cultured broth of a fungus, Verticillium sp. FKI-1033. It is a 24-membered ring cyclic depsipeptide, its structure being elucidated as cyclo[(2R)-2-hydroxyheptanoyl-N-methyl- L-alanyl](4). Verticilide inhibited ryanodine binding to ryanodine receptors in the cockroach at an IC(50) value of 4.2 microM, whereas inhibition against mouse ryanodine receptors was weak (IC(50)=53.9 microM).
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pubmed:affiliation |
Kitasato Institute for Life Sciences, Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan. shiomi@lisci.kitasato-u.ac.jp
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