Compound Monograph

Proamanullin

Proamanullin is a minor cyclic peptide of the amatoxin family found in deadly Amanita mushrooms.

Sources · 1

Where Does It Come From?

Proamanullin is a naturally occurring cyclic peptide (amatoxin), found in Death cap and related Amanita mushrooms. It is flagged as toxic.

Also found in
Death cap and related Amanita mushrooms Monograph coming soon

Concentration

Content by Source

Concentrations not reported. No percent-dry-weight or mg/g figures have been published for this compound in its source plants.

Research & Evidence

Proamanullin is a bicyclic octapeptide belonging to the amatoxin group produced by certain deadly Amanita mushrooms. It is structurally related to the well-known toxin alpha-amanitin. Despite a source tag suggesting otherwise, it is not a tryptamine or a psychedelic; the amatoxins are inhibitors of RNA polymerase II, the same mechanism that makes this mushroom family lethal. Proamanullin is a comparatively minor congener and is not well characterized on its own.

Toxicity & Safety

As a member of the amatoxin family, proamanullin should be regarded as part of a class of compounds responsible for fatal mushroom poisonings; amatoxins cause severe liver and kidney damage. These mushrooms have no safe use, and any suspected ingestion is a medical emergency.