(−)-alpha-pinene synthase

(−)-α-Pinene synthase (EC 4.2.3.119, (−)-α-pinene/(−)-camphene synthase, (−)-α-pinene cyclase) is an enzyme with systematic name geranyl-diphosphate diphosphate-lyase [cyclizing, (−)-α-pinene-forming]. This enzyme catalyses the following chemical reaction


 * geranyl diphosphate $$\rightleftharpoons$$ (−)-α-pinene + diphosphate

Cyclase II of Salvia officinalis (sage) gives about equal parts (−)-α-pinene, (−)-β-pinene and (−)-camphene.