Myrosinase (or thioglucoside glucohydrolase)'s a family of enzymes involved in plant defense against herbivores. Their structure has been elucidated and's available. Myrosinase activity Myrosinase's regarded as a defense-related enzyme and's capable of hydrolyzing glucosinolates into various compounds, some of which are toxic. In the presence of water, myrosinase cleaves off the glucose group from a glucosinolate. The remaining molecule then quickly converts to a thiocyanate, an isothiocyanate o… (More on Myrosinase)