What is "ibotenic acid"

n. (context biochemistry English) An isoxazole present in ''Amanita'' fungi, used as an insecticide.

Ibotenic acid or (S)-2-amino-2-(3-hydroxyisoxazol-5-yl) acetic acid, also referred to as ibotenate, is a chemical compound and psychoactive drug which occurs naturally in Amanita muscaria and related species of mushrooms typically found in the temperate and boreal regions of the northern hemisphere. It is a conformationally-restricted analogue of the neurotransmitter glutamate, and due to its structural similarity to this neurotransmitter, acts as a non-selective glutamate receptor agonist. Because of this, ibotenic acid can be a powerful neurotoxin, and is employed as a "brain- lesioning agent" in scientific research.