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A1304

Sigma-Aldrich

β-Amanitin

from Amanita phalloides, ≥85% (HPLC), powder, RNA polymerase inhibitor

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About This Item

Empirical Formula (Hill Notation):
C39H53N9O15S
CAS Number:
21150-22-1
Molecular Weight:
919.95
EC Number:
244-244-8
MDL number:
MFCD00151212
UNSPSC Code:
12352200
PubChem Substance ID:
24890528
NACRES:
NA.77

product name

β-Amanitin from Amanita phalloides, ≥85% (HPLC)

Quality Level

200

Assay

≥85% (HPLC)

form

powder

storage temp.

−20°C

SMILES string

CCC(C)C1NC(=O)CNC(=O)C2Cc3c([nH]c4cc(O)ccc34)S(=O)CC(NC(=O)CNC1=O)C(=O)NC(CC(O)=O)C(=O)N5CC(O)CC5C(=O)NC(C(C)C(O)CO)C(=O)N2

InChI

1S/C39H53N9O15S/c1-4-16(2)31-36(60)41-11-28(53)42-25-15-64(63)38-21(20-6-5-18(50)7-22(20)45-38)9-23(33(57)40-12-29(54)46-31)43-37(61)32(17(3)27(52)14-49)47-35(59)26-8-19(51)13-48(26)39(62)24(10-30(55)56)44-34(25)58/h5-7,16-17,19,23-27,31-32,45,49-52H,4,8-15H2,1-3H3,(H,40,57)(H,41,60)(H,42,53)(H,43,61)(H,44,58)(H,46,54)(H,47,59)(H,55,56)

InChI key

IEQCUEXVAPAFMQ-UHFFFAOYSA-N

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General description

β-Amanitin belongs to the family of amatoxins. Amanitins are made of bicyclic octapeptides. β-Amanitin is composed of a carboxyl group and is acidic in nature.

Application

β-Amanitin from Amanita phalloides has been used:
  • as a calibration standard for the quantification of β-Amanitin using liquid chromatography-high resolution-mass spectrometry/mass spectrometry (LC-HR-MS/MS) method.
  • to determine its concentration in urine samples by capillary zone electrophoresis (CZE).
  • in the analysis of β-amanitin in toxic mushrooms by liquid chromatography coupled to time-of-flight mass spectrometry.

Biochem/physiol Actions

Toxic constituent of the mushroom, Amanita phalloides, inhibits eukaryotic RNA polymerase II and III, but not RNA polymerase I or bacterial RNA polymerase. Inhibits mammalian protein synthesis.

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H300 + H310 + H330

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Certificates of Analysis (COA)

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Chiemi Nishizawa et al.
Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology, 16(4), 441-445 (2004-01-27)
High-performance liquid chromatographic (HPLC) assay has been developed for the simultaneous determination of alpha-amanitin, beta-amanitin and phalloidin in serum. Three toxins were extracted by reflux in a water bath at 80 degrees C for one hour and purified by Sep-Pak
Peng Li et al.
Gene, 532(1), 63-71 (2013-09-21)
Amanita exitialis is a lethal mushroom that was first discovered in Guangdong Province, China. The high content of amanitin in its basidiocarps makes it lethal to humans. To comprehensively characterize the A. exitialis transcriptome and analyze the Amanita toxins as
V A Robinson-Fuentes et al.
Journal of pharmaceutical and biomedical analysis, 47(4-5), 913-917 (2008-05-27)
Amanitins are toxins found in species of the mushroom genera Amanita, Lepiota and Galerina. Intoxication after ingestion of these mushrooms can be fatal with an estimated 20% of mortality rate. An early diagnosis is necessary in order to avoid invasive
F Jehl et al.
Analytical biochemistry, 149(1), 35-42 (1985-08-15)
A high-performance liquid chromatographic assay of alpha-amanitin and beta-amanitin in human serum, urine, or stomach washings is described. Sample preparation involves a chemical step with deproteinization and organic solvent treatment, and a selective cleanup and concentration step on reversed-phase prepacked
H Faulstich et al.
Toxicon : official journal of the International Society on Toxinology, 26(5), 491-499 (1988-01-01)
A monoclonal antibody, with high affinity against the mushroom toxin alpha-amanitin, was prepared. Administration of the Fab fragment of the monoclonal antibody to mice caused a 50-fold increase in alpha-amanitin toxicity. Electron micrographs showed normal appearance of hepatocytes but typical
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