Enzymes
| UniProtKB help_outline | 1 proteins |
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Reaction participants Show >> << Hide
- Name help_outline lupan-3β,20-diol Identifier CHEBI:62735 Charge 0 Formula C30H52O2 InChIKeyhelp_outline YDNYDUBBAZTLTQ-LIVJDELJSA-N SMILEShelp_outline [H][C@]1(CC[C@]2(C)CC[C@]3(C)[C@]([H])(CC[C@]4([H])[C@@]5(C)CC[C@H](O)C(C)(C)[C@]5([H])CC[C@@]34C)[C@@]12[H])C(C)(C)O 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline (S)-2,3-epoxysqualene Identifier CHEBI:15441 Charge 0 Formula C30H50O InChIKeyhelp_outline QYIMSPSDBYKPPY-RSKUXYSASA-N SMILEShelp_outline CC(C)=CCC\C(C)=C\CC\C(C)=C\CC\C=C(/C)CC\C=C(/C)CC[C@@H]1OC1(C)C 2D coordinates Mol file for the small molecule Search links Involved in 30 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,264 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:31351 | RHEA:31352 | RHEA:31353 | RHEA:31354 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Arabidopsis thaliana LUP1 converts oxidosqualene to multiple triterpene alcohols and a triterpene diol.
Segura M.J.R., Meyer M.M., Matsuda S.P.T.
The Arabidopsis thaliana LUP1 gene encodes an enzyme that converts oxidosqualene to pentacyclic triterpenes. Lupeol and beta-amyrin were previously reported as LUP1 products. Further investigation described here uncovered the additional products germanicol, taraxasterol, psi-taraxasterol, and 3,20 ... >> More
The Arabidopsis thaliana LUP1 gene encodes an enzyme that converts oxidosqualene to pentacyclic triterpenes. Lupeol and beta-amyrin were previously reported as LUP1 products. Further investigation described here uncovered the additional products germanicol, taraxasterol, psi-taraxasterol, and 3,20-dihydroxylupane. These results suggest that the 80 known C(30)H(50)O compounds that are structurally consistent with being oxidosqualene cyclase products may be derived from fewer than 80 enzymes and that some C(30)H(52)O(2) compounds may be direct cyclization products of oxidosqualene. << Less
Org. Lett. 2:2257-2259(2000) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
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Stereochemical course in water addition during LUP1-catalyzed triterpene cyclization.
Kushiro T., Hoshino M., Tsutsumi T., Kawai K., Shiro M., Shibuya M., Ebizuka Y.
Arabidopsis thaliana LUP1 (At1g78970) catalyzes the cyclization of oxidosqualene into lupeol and 3beta,20-dihydroxylupane (lupanediol). The stereochemical course of water addition to the lupanyl cation was studied. The X-ray crystal structure of lupanylepoxide 3,5-dinitrobenzoate established the c ... >> More
Arabidopsis thaliana LUP1 (At1g78970) catalyzes the cyclization of oxidosqualene into lupeol and 3beta,20-dihydroxylupane (lupanediol). The stereochemical course of water addition to the lupanyl cation was studied. The X-ray crystal structure of lupanylepoxide 3,5-dinitrobenzoate established the configuration of epoxide as 20S. LiAlD4 reduction of the epoxide enabled the chemical shift assignment of prochiral methyl groups at C20 of lupanediol. Correlation of these methyl groups with biosynthetic lupanediol from [1,2-(13)C(2)] acetate established the stereochemical course of water addition. [reaction: see text]. << Less