The enzyme (4S)-limonene synthase (EC 4.2.3.16) catalyzes the chemical reaction
This enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on phosphates. The systematic name of this enzyme class is geranyl-diphosphate diphosphate-lyase [cyclizing, (âÂÂ)-(4S)-limonene-forming]. Other names in common use include (âÂÂ)-(4S)-limonene synthase, 4S-(âÂÂ)-limonene synthase, geranyldiphosphate diphosphate lyase (limonene forming), geranyldiphosphate diphosphate lyase [cyclizing,, and (4S)-limonene-forming]. This enzyme participates in monoterpenoid biosynthesis.