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Key Documents

A8100

Sigma-Aldrich

β-Amanitin–poly-L-lysine bound

≥85%

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About This Item

MDL number:
UNSPSC Code:
12352200

assay

≥85%

solubility

H2O: soluble

shipped in

wet ice

storage temp.

2-8°C

Application

β-Amanitin inhibits RNA polymerase II and III in eukaryotic cells. β-Amanitin binds to the bridging helix of RNA polymerase II inhibiting the translocation of RNA and DNA required for transcription. β-Amanitin slows the rate of transcription roughly 1000 fold.

Biochem/physiol Actions

Inhibits eukaryotic RNA polymerase II and III; does not inhibit RNA polymerase I or bacterial RNA polymerase; inhibits mammalian protein synthesis.
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.

Caution

Highly toxic

Preparation Note

Supplied as 0.1 mg β-Amanitin bound to 0.5 mg poly-L-lysine HCL (25,000 ave. mol. wt) in 3.4 mg of NaCl

pictograms

Skull and crossbones

signalword

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 2 Dermal - Acute Tox. 2 Oral

Storage Class

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

wgk_germany

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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