5.4.99.46: shionone synthase

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For detailed information about shionone synthase, go to the full flat file.

Reaction

Synonyms

OSC, Oxidosqualene cyclase, shionone synthase, SHS

ECTree

     5 Isomerases

         5.4 Intramolecular transferases

             5.4.99 Transferring other groups

                5.4.99.46 shionone synthase

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Results	in table
1	AA Sequence
2	Cloned(Commentary)
1	Organism
1	Reaction
1	Reference
10	Source Tissue
2	Substrates and Products (Substrate)
4	Synonyms
1	Systematic Name

Substrates Products

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Substrates Products on EC 5.4.99.46 - shionone synthase

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SUBSTRATE

PRODUCT                       

REACTION DIAGRAM

ORGANISM

UNIPROT

COMMENTARY
(Substrate)

LITERATURE
(Substrate)

COMMENTARY
(Product)

LITERATURE
(Product)

Reversibility
r=reversible
ir=irreversible
?=not specified

(3S)-2,3-epoxy-2,3-dihydrosqualene

shionone + beta-amyrin + friedelin + dammara-20,24-dienol + 4-epishionone

Aster tataricus

-

-

715030

the ratio of the products is roughly estimated as shionone:beta-amyrin:friedelin:dammara-20,24-dienol:4-epishionone = 90%:2%:2%:1.5%:1.5%

-

?

oxidosqualene

shionone

Aster tataricus

-

-

715030

the cyclase yields ca. 90% shionone and small amounts of beta-amyrin, friedelin, dammara-20,24-dienol, and 4-epishionone

-

?