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EC Tree
The expected taxonomic range for this enzyme is: Brassica rapa subsp. pekinensis
Synonyms
bra032185,
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(3S)-2,3-epoxy-2,3-dihydrosqualene = astertarone A
(3S)-2,3-epoxy-2,3-dihydrosqualene = astertarone A
reaction mechanism via intermediate forms dammarenyl cation, C-4 cation, and enol form, overview
(3S)-2,3-epoxy-2,3-dihydrosqualene = astertarone A
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(3S)-2,3-epoxy-2,3-dihydrosqualene
astertarone A
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additional information
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additional information
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the Brassica rapa oxidosqualene cyclase Bra032185 produces 60% astertarone A and 20 minor triterpenes (0.1-11%), i.e. butyrospermol (11.4%), euphol (8.6%), dammar-21-ene-3beta,18(S)-diol (6.7%), boeticol (4.2%), dammar-21-ene-3beta,18(R)-diol (1.8%), isoeuphol (1.4%), dammar-18(28)-21-dien-3-beta-ol (1.2%), camelliol C (1.0%), and below 1% of isohelianol, 9alphaH-polypoda-7,13E,17E,21-tetraenol, isotirucallol, (20R)--dammara-12,21-dien-3beta-ol, 9alphaH-polypoda-8(26),13E,17E,21-tetraenol, 14-epiarabindiol, (18S)-dammara-12,21-dien-3beta-ol, dammara-18(19)Z-21-dien-3beta-ol, and dammara-18(19)E,21-dien-3-beta-ol
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additional information
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the Brassica rapa oxidosqualene cyclase Bra032185 produces 60% astertarone A and 20 minor triterpenes (0.1-11%), i.e. butyrospermol (11.4%), euphol (8.6%), dammar-21-ene-3beta,18(S)-diol (6.7%), boeticol (4.2%), dammar-21-ene-3beta,18(R)-diol (1.8%), isoeuphol (1.4%), dammar-18(28)-21-dien-3-beta-ol (1.2%), camelliol C (1.0%), and below 1% of isohelianol, 9alphaH-polypoda-7,13E,17E,21-tetraenol, isotirucallol, (20R)--dammara-12,21-dien-3beta-ol, 9alphaH-polypoda-8(26),13E,17E,21-tetraenol, 14-epiarabindiol, (18S)-dammara-12,21-dien-3beta-ol, dammara-18(19)Z-21-dien-3beta-ol, and dammara-18(19)E,21-dien-3-beta-ol
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(3S)-2,3-epoxy-2,3-dihydrosqualene
astertarone A
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additional information
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additional information
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the Brassica rapa oxidosqualene cyclase Bra032185 produces 60% astertarone A and 20 minor triterpenes (0.1-11%), i.e. butyrospermol (11.4%), euphol (8.6%), dammar-21-ene-3beta,18(S)-diol (6.7%), boeticol (4.2%), dammar-21-ene-3beta,18(R)-diol (1.8%), isoeuphol (1.4%), dammar-18(28)-21-dien-3-beta-ol (1.2%), camelliol C (1.0%), and below 1% of isohelianol, 9alphaH-polypoda-7,13E,17E,21-tetraenol, isotirucallol, (20R)--dammara-12,21-dien-3beta-ol, 9alphaH-polypoda-8(26),13E,17E,21-tetraenol, 14-epiarabindiol, (18S)-dammara-12,21-dien-3beta-ol, dammara-18(19)Z-21-dien-3beta-ol, and dammara-18(19)E,21-dien-3-beta-ol
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additional information
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the Brassica rapa oxidosqualene cyclase Bra032185 produces 60% astertarone A and 20 minor triterpenes (0.1-11%), i.e. butyrospermol (11.4%), euphol (8.6%), dammar-21-ene-3beta,18(S)-diol (6.7%), boeticol (4.2%), dammar-21-ene-3beta,18(R)-diol (1.8%), isoeuphol (1.4%), dammar-18(28)-21-dien-3-beta-ol (1.2%), camelliol C (1.0%), and below 1% of isohelianol, 9alphaH-polypoda-7,13E,17E,21-tetraenol, isotirucallol, (20R)--dammara-12,21-dien-3beta-ol, 9alphaH-polypoda-8(26),13E,17E,21-tetraenol, 14-epiarabindiol, (18S)-dammara-12,21-dien-3beta-ol, dammara-18(19)Z-21-dien-3beta-ol, and dammara-18(19)E,21-dien-3-beta-ol
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UniProt
brenda
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evolution
the enzyme is a terpene cyclase/mutase family member, phylogenetic tree
additional information
comparison of active-site residues
additional information
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comparison of active-site residues
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M4ETQ3_BRARP
760
0
87771
TrEMBL
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gene bra032185, DNA and amino acid sequence analysis, sequence comparisons, and phylogenetic analysis
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Jin, J.; Moore, M.K.; Wilson, W.K.; Matsuda, S.P.T.
Astertarone A synthase from chinese cabbage does not produce the C4-epimer mechanistic insights
Org. Lett.
20
1802-1805
2018
Brassica rapa subsp. pekinensis (M4ETQ3), Brassica rapa subsp. pekinensis
brenda
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