ID   4.2.3.121
DE   (+)-alpha-pinene synthase.
AN   (+)-alpha-pinene cyclase.
CA   (2E)-geranyl diphosphate = (1R,5R)-alpha-pinene + diphosphate.
CC   -!- Cyclase I of Salvia officinalis (sage) gives about equal parts (+)-
CC       alpha-pinene and (+)-camphene, whereas cyclase III gives about equal
CC       parts of (+)-alpha-pinene and (+)-beta-pinene.
CC   -!- (3R)-linalyl diphosphate can also be used by the enzyme in preference
CC       to (3S)-linalyl diphosphate.
CC   -!- The 4-pro-R hydrogen of geranyl diphosphate is lost.
CC   -!- With synthase II of Pinus taeda (loblolly pine) (+)-beta-pinene was
CC       the only product.
CC   -!- See also EC 4.2.3.122 and EC 4.2.3.116.
DR   O81192, BPPS_SALOF ;  R9QMY8, CAMPS_PINCO;  Q84KL3, PT30_PINTA ;
DR   R9QMR1, RAPN1_PINBN;  R9QMW2, RAPN1_PINCO;  A7IZZ2, TPS2_CANSA ;
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