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A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.
ENZYME entry: EC 4.2.3.121
| Accepted Name |
|---|
| (+)-alpha-pinene synthase.
|
| Alternative Name(s) |
|---|
| (+)-alpha-pinene cyclase. |
| Reaction catalysed |
|---|
| Geranyl diphosphate <=> (+)-alpha-pinene + diphosphate |
| Comment(s) |
|---|
- Cyclase I of Salvia officinalis (sage) gives about equal parts (+)-
alpha-pinene and (+)-camphene, whereas cyclase III gives about equal
parts of (+)-alpha-pinene and (+)-beta-pinene.
- (3R)-linalyl diphosphate can also be used by the enzyme in preference
to (3S)-linalyl diphosphate.
- The 4-pro-R hydrogen of geranyl diphosphate is lost.
- With synthase II of Pinus taeda (loblolly pine) (+)-beta-pinene was
the only product.
- See also EC 4.2.3.122 and EC 4.2.3.116.
|
| Cross-references |
|---|
| BRENDA | 4.2.3.121 |
| EC2PDB | 4.2.3.121 |
| ExplorEnz | 4.2.3.121 |
| PRIAM enzyme-specific profiles | 4.2.3.121 |
| KEGG Ligand Database for Enzyme Nomenclature | 4.2.3.121 |
| IUBMB Enzyme Nomenclature | 4.2.3.121 |
| IntEnz | 4.2.3.121 |
| MEDLINE | Find literature relating to 4.2.3.121 |
| MetaCyc | 4.2.3.121 |
| UniProtKB/Swiss-Prot |
|
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All
ENZYME /
UniProtKB/Swiss-Prot entries corresponding to 4.2.3.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 4.2.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 4.-.-.-