Category:TP5
From Metabolomics.JP
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=={{Bilingual|生合成|Biosynthesis}}== | =={{Bilingual|生合成|Biosynthesis}}== | ||
==={{Bilingual|概要|Overview}}=== | ==={{Bilingual|概要|Overview}}=== | ||
+ | Two major classes of terpene synthases exist: "transoid" and "cisoid" synthase. | ||
+ | Transoid synthase directly ionizes ('trans','trans')-farnesyl diphosphate, whereas | ||
+ | Cisoid synthase first isomerizes C2-C3 double bond to produce the neutral (3'R')- or (3'S')-nerolidyl diphosphate (enzyme-bound) and then ionizes it. | ||
+ | |||
+ | {| | ||
+ | ! Type || Substrate | ||
+ | | Transoid synthase | ||
+ | |(2-'trans',6-'trans')-farnesyl diphosphate | ||
+ | |- | ||
+ | | Cisoid synthase | ||
+ | |((2-'cis',6-'trans')-farnesyl diphosphate | ||
+ | |} | ||
+ | |||
Revision as of 09:58, 22 July 2014
Contents |
Sesquiterpene (C15)
Ring configuration
Germacrane
Sesquiterpenes
Biosynthesis
Overview
Two major classes of terpene synthases exist: "transoid" and "cisoid" synthase. Transoid synthase directly ionizes ('trans','trans')-farnesyl diphosphate, whereas Cisoid synthase first isomerizes C2-C3 double bond to produce the neutral (3'R')- or (3'S')-nerolidyl diphosphate (enzyme-bound) and then ionizes it.
Type | Substrate | Transoid synthase | (2-'trans',6-'trans')-farnesyl diphosphate |
---|---|---|---|
Cisoid synthase | ((2-'cis',6-'trans')-farnesyl diphosphate |
- References
Sesquiterpene Synthase
farnesyl diphosphate | ||||||||
farnesyl cation |
| |||||||
(E,E)-germacradiene |
eudesmane (= selinane) |
vetispiradienyl cation | ||||||
eremophilane (= 14(10→5) abeoeudesmane)
| ||||||||
guaiane |
cycloguaiane | |||||||
(E,E)-humulane |
caryophyllane | |||||||
africanane | ||||||||
drimane |
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nerolidyl cation |
bisabolane |
chamigrane ... 6,11-cyclobisabolane | ||||||
cuparane (= 7,11-cyclobisabolane)
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trichothecane [1]
| |||||||
(Z,E)-germacradiene |
cadinane | |||||||
(Z,E)-humulane |
himachalane | |||||||
protoilludane |
hirsutane | |||||||
cycloheptenyl cation |
daucane (= carotane) | |||||||
furodysin | ||||||||
others |
|
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