| amanitine | The poisonous principle of some fungi. Origin: Gr. A sort of fungus. Source: Websters Dictionary (01 Mar 1998) |
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| amanitins | <pharmacology> Cyclic peptides. The most toxic components of Amanita phalloides (Death cap toadstool). Specific inhibitors of RNA polymerase II in eukaryotes thus inhibiting protein synthesis by blocking the production of mRNA. (18 Nov 1997) |
| alpha-amanitin | <drug> A highly toxic, heat-stable bicyclic oligopeptide derived from the Amanita phalloides mushroom. It inhibits transcription by interfering with the function of certain RNA polymerases. (14 Aug 2000) |
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