Literature summary for 5.4.99.40 extracted from

Morita, M.; Shibuya, M.; Kushiro, T.; Masuda, K.; Ebizuka, Y.
Molecular cloning and functional expression of triterpene synthases from pea (Pisum sativum) new alpha-amyrin-producing enzyme is a multifunctional triterpene synthase (2000), Eur. J. Biochem., 267, 3453-3460.

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Cloned(Commentary)

Cloned (Comment)	Organism
expression of PSM in ERG7 deficient yeast mutant GIL77	Pisum sativum

Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
(3S)-2,3-epoxy-2,3-dihydrosqualene	Pisum sativum	PSM produces both alpha- and beta-amyrin in about 3 : 2 ratio together with at least six other minor triterpenes	alpha-amyrin	-	?

Organism

Organism	UniProt	Comment	Textmining
Pisum sativum	Q9LRH7	-	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
(3S)-2,3-epoxy-2,3-dihydrosqualene	PSM produces both alpha- and beta-amyrin in about 3 : 2 ratio together with at least six other minor triterpenes	Pisum sativum	alpha-amyrin	-	?

Synonyms

Synonyms	Comment	Organism
2,3-oxidosqualene alpha-amyrin cyclase	-	Pisum sativum
mixed amyrin synthase	a multifunctional enzyme which produces both alpha- and beta-amyrin (see EC 5.4.99.39, beta-amyrin synthase)	Pisum sativum
OSCPSM	-	Pisum sativum
PSM	-	Pisum sativum

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Release 2023.1 (January 2023)