The amanitin toxin is heat stable, remaining toxic whether eaten raw or cooked. The mechanism of action of amatoxin is by inhibiting RNA polymerase, causing disruption of transcription of mRNA. As a result, hepatocytes cannot synthesize key protein coding genes, leading to the disintegration of nucleoli and pathologically centrilobular hepatic necrosis. This leads to the insidious onset of liver failure over 48 hours. Late onset (more than six hours after ingestion) of vomiting and watery diarrhea occur due to the second component in some of these mushrooms which are phallotoxin. Lepiota species lack phallotoxins so may not have the onset of vomiting and diarrhea until after 12 hours post-ingestion, or may just present with symptoms of liver failure at 24 hours post ingestion.

https://www.ncbi.nlm.nih.gov/books/NBK431052/

Wow ok 😬