Page last updated: 2024-10-15

amatoxin

Cross-References

ID SourceID
PubMed CID125121811
MeSH IDM0069512

Synonyms (13)

Synonym
gamma-amatoxin
9,18-(iminoethaniminoethaniminoethaniminomethano)pyrrolo(1',2':8,9)(1,5,8,11,14)thiatetraazacyclooctadecino(18,17-b)indole-6-acetamide, 1,2,3,5,6,7,8,9,10,12,17,18,19,20,21,22,23,23a-octadecahydro-29-sec-butyl-2,14-dihydroxy-21-(2-hydroxy-1-methylpropyl)-
(s)-3-(4-hydroxy-l-isoleucine)-alpha-amanitin
brn 1070216
alpha-amanitin, 3-(4-hydroxy-l-isoleucine)-, (s)-
zoz8ilm7wm ,
unii-zoz8ilm7wm
amatoxin
gamma amanitin
amanitin, .gamma.-
cyclo(l-asparaginyl-4-hydroxy-l-prolyl-(s)-4-hydroxy-l-isoleucyl-6-hydroxy-2-mercapto-l-tryptophylglycyl-l-isoleucylglycyl-l-cysteinyl) cyclic (4->8)-sulfide (r)-s-oxide
.alpha.-amanitin, 3-((4s)-4-hydroxy-l-isoleucine)-
.gamma.-amanitin

Research Excerpts

Overview

Amatoxin poisoning is a medical emergency characterized by a long incubation time lag, gastrointestinal and hepatotoxic phases, coma, and death.

ExcerptReference
"Amatoxin poisoning is a medical emergency characterized by a long incubation time lag, gastrointestinal and hepatotoxic phases, coma, and death. "( Treatment of amatoxin poisoning: 20-year retrospective analysis.
Amouroux, N; Cabot, C; Enjalbert, F; Guillon, S; Nouguier-Soulé, J; Rapior, S, 2002
)

Actions

ExcerptReference
"The amatoxins cause necrosis of the liver, also partly in the kidney, with the cellular changes causing the fragmentation and segregation of all nuclear components."( Toxins of Amanita phalloides.
Vetter, J, 1998
)

Toxicity

Amatoxins, highly toxic components of Amanita mushrooms, strongly inhibit the DNA-dependent RNA polymerase II (or B) in eukaryotic cell nuclei. Severe symptoms have been observed after ingestion of non-amatoxin-containing toxic mushrooms.

ExcerptReference
"The amatoxins, highly toxic components of Amanita mushrooms, strongly inhibit the DNA-dependent RNA polymerase II (or B) in eukaryotic cell nuclei."( Structure-toxicity relationships in the amatoxin series. Synthesis of S-deoxy[gamma(R)-hydroxy-Ile3]-amaninamide, its crystal and molecular structure and inhibitory efficiency.
Benedetti, E; Di Blasio, B; Pavone, V; Pedone, C; Wieland, T; Zanotti, G, 1989
)
" Twice as toxic as free alpha-amanitin."( Strongly enhanced toxicity of the mushroom toxin alpha-amanitin by an amatoxin-specific Fab or monoclonal antibody.
Derenzini, M; Faulstich, H; Kirchner, K, 1988
)
" Ingestion of toxic mushrooms may result in serious toxicity, including death."( Mushroom poisoning: a study on circumstances of exposure and patterns of toxicity.
Bodmer, M; Ceschi, A; Kullak-Ublick, GA; Kupferschmidt, H; Rauber-Lüthy, C; Schenk-Jaeger, KM, 2012
)
" Nevertheless, accidental ingestion of toxic mushrooms can be responsible for severe or fatal poisonings."( Mushroom poisoning: a study on circumstances of exposure and patterns of toxicity.
Bodmer, M; Ceschi, A; Kullak-Ublick, GA; Kupferschmidt, H; Rauber-Lüthy, C; Schenk-Jaeger, KM, 2012
)

Dosage Studied

ExcerptReference
" Repeated dosing was administered intraperitoneally every 4 to 6 hours for 48 hours."( Comparative treatment of alpha-amanitin poisoning with N-acetylcysteine, benzylpenicillin, cimetidine, thioctic acid, and silybin in a murine model.
Betten, DP; Clark, RF; Favata, M; Hernandez, M; Richardson, WH; Riffenburgh, RH; Tanen, DA; Tong, TC, 2007
)
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (124)

TimeframeStudies, This Drug (%)All Drugs %
pre-199024 (19.35)18.7374
1990's19 (15.32)18.2507
2000's21 (16.94)29.6817
2010's34 (27.42)24.3611
2020's26 (20.97)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Reviews23 (17.42%)6.00%
Case Studies25 (18.94%)4.05%
Observational1 (0.76%)0.25%
Other83 (62.88%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]