EC |
5.4.99.55 |
Accepted name: |
δ-amyrin synthase |
Reaction: |
(3S)-2,3-epoxy-2,3-dihydrosqualene = δ-amyrin |
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For diagram of α-amyrin, α-seco-amyrin and germanicol biosynthesis, click here |
Other name(s): |
SlTTS2 (gene name) |
Systematic name: |
(3S)-2,3-epoxy-2,3-dihydrosqualene mutase (cyclizing, δ-amyrin-forming) |
Comments: |
The enzyme from tomato (Solanum lycopersicum) gives 48% δ-amyrin, 18% α-amyrin, 13% β-amyrin and traces of three or four other triterpenoid alcohols [1]. See also EC 5.4.99.40, α-amyrin synthase and EC 5.4.99.39, β-amyrin synthase. |
Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
References: |
1. |
Wang, Z., Guhling, O., Yao, R., Li, F., Yeats, T.H., Rose, J.K. and Jetter, R. Two oxidosqualene cyclases responsible for biosynthesis of tomato fruit cuticular triterpenoids. Plant Physiol. 155 (2011) 540–552. [DOI] [PMID: 21059824] |
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[EC 5.4.99.55 created 2011] |
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