| 别名 |
(-)-(1S,5S)-pinene synthase, (-)-pinene synthase, ag9, AvPS, AvTPS1, beta-geraniolene synthase, cyclase II, mono-tps, More, pinene synthase, QH6, TPS-(-)apin1, TPS-(-)bpin1, TPS-(-)bpin2, TPS1, TPS2, TPS3 |
| Comments |
Cyclase II of?Salvia officinalis?(sage) produces about equal parts (?)-¦Á-pinene, (?)-¦Â-pinene and (?)-camphene, plus traces of other monoterpenoids. The enzyme, which requires Mg2+?(preferred to Mn2+), can also use (3S)-Linalyl diphosphate (preferred to (3R)-linalyl diphosphate) [1-4]. The enzyme from?Abies grandis?(grand fir) produces roughly equal parts of (?)-¦Á-pinene and (?)-¦Â-pinene [6-9]. Cyclase IV from?Pinus contorta?(lodgepole pine) produces 63% (?)-¦Â-pinene, 26% 3-carene, and traces of ¦Á-pinene [10]. Synthase III from?Pinus taeda?(loblolly pine) forms (?)-¦Â-pinene with traces of ¦Á-pinene and requires Mn2+?and K+?(Mg2+?is ineffective) [11]. A cloned enzyme from?Artemisia annua?(sweet wormwood) gave (?)-¦Â-pinene with traces of (?)-¦Á-pinene [5]. The enzyme from?Picea sitchensis?(Sika spruce) forms 30% (?)-¦Â-pinene and 70% (?)-¦Á-pinene [12]. See also EC?4.2.3.119, (?)-¦Á-pinene synthase, EC?4.2.3.117, (?)-camphene synthase, and EC?4.2.3.107?(+)-3-carene synthase. |
