(+)-alpha-pinene synthase

(+)-α-pinene synthase (EC 4.2.3.121, (+)-α-pinene cyclase, cyclase I) 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 I of Salvia officinalis (sage) gives about equal parts (+)-α-pinene and (+)-camphene.