Chemistry:epsilon-Amanitin
From HandWiki
Short description: Cyclic peptide part of a group of toxins present in Amanita mushrooms
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Other names
Amanine
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3D model (JSmol)
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Properties | |
C39H53N9O14S | |
Molar mass | 903.96 g/mol |
Appearance | Colorless, crystalline solid |
Soluble | |
Solubility in ethanol and methanol | Soluble |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Tracking categories (test):
epsilon-Amanitin or ε-amanitin is a cyclic peptide. It is an amatoxin, all of which are found in several members of the mushroom genus Amanita. The oral -1">50 of ε-amanitin is approximately 0.1 mg/kg.
Toxicology
Like other amatoxins, ε-amanitin is an inhibitor of RNA polymerase II. Upon ingestion, it binds to the RNA polymerase II enzyme which completely prevents mRNA synthesis, effectively causing cytolysis of hepatocytes (liver cells) and kidney cells.[1]
See also
References
- ↑ M. Cochet-Meillhac; Chambon P. (1974). "Animal DNA-dependent RNA polymerases. 11. Mechanism of the inhibition of RNA polymerases B by amatoxins". Biochim Biophys Acta 353 (2): 160–184. doi:10.1016/0005-2787(74)90182-8. PMID 4601749.
External links
- Amatoxins REVISED
- Poisonous Mushrooms (German)