Tricyclene synthase

Tricyclene synthase (EC 4.2.3.105, TPS3) is an enzyme with systematic name geranyl-diphosphate diphosphate-lyase (cyclizing; tricyclene-forming). This enzyme catalyses the following chemical reaction


 * geranyl diphosphate $$\rightleftharpoons$$ tricyclene + diphosphate

The enzyme from Solanum lycopersicum (tomato) gives a mixture of tricyclene, camphene, beta-myrcene and limonene.