Enzymes
| UniProtKB help_outline | 1 proteins |
Reaction participants Show >> << Hide
- Name help_outline orobanchol Identifier CHEBI:195254 (CAS: 220493-65-2) help_outline Charge 0 Formula C19H22O6 InChIKeyhelp_outline CDBBMEYPRMUMTR-KIKJJFSISA-N SMILEShelp_outline [H][C@@]12OC(=O)\C(=C\O[C@@H]3OC(=O)C(C)=C3)[C@]1([H])[C@@H](O)C1=C2C(C)(C)CCC1 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 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 6,485 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline orobanchol ABC-rings Identifier CHEBI:195257 Charge 0 Formula C14H18O4 InChIKeyhelp_outline RRADQMRHCHUZBZ-BTRAOZKXSA-N SMILEShelp_outline [H][C@@]12OC(=O)\C(=C\O)[C@]1([H])[C@@H](O)C1=C2C(C)(C)CCC1 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 5-hydroxy-3-methylfuran-2(5H)-one Identifier CHEBI:195253 (CAS: 931-23-7) help_outline Charge 0 Formula C5H6O3 InChIKeyhelp_outline HQIZYPQNJWENRT-UHFFFAOYSA-N SMILEShelp_outline CC1=CC(O)OC1=O 2D coordinates Mol file for the small molecule Search links Involved in 3 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:76515 | RHEA:76516 | RHEA:76517 | RHEA:76518 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Publications
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Catabolism of strigolactones by a carboxylesterase.
Xu E., Chai L., Zhang S., Yu R., Zhang X., Xu C., Hu Y.
Strigolactones (SLs) are carotenoid-derived plant hormones that control shoot branching and communications between host plants and symbiotic fungi or root parasitic plants. Extensive studies have identified the key components participating in SL biosynthesis and signalling, whereas the catabolism ... >> More
Strigolactones (SLs) are carotenoid-derived plant hormones that control shoot branching and communications between host plants and symbiotic fungi or root parasitic plants. Extensive studies have identified the key components participating in SL biosynthesis and signalling, whereas the catabolism or deactivation of endogenous SLs in planta remains largely unknown. Here, we report that the Arabidopsis carboxylesterase 15 (AtCXE15) and its orthologues function as efficient hydrolases of SLs. We show that overexpression of AtCXE15 promotes shoot branching by dampening SL-inhibited axillary bud outgrowth. We further demonstrate that AtCXE15 could bind and efficiently hydrolyse SLs both in vitro and in planta. We also provide evidence that AtCXE15 is capable of catalysing hydrolysis of diverse SL analogues and that such CXE15-dependent catabolism of SLs is evolutionarily conserved in seed plants. These results disclose a catalytic mechanism underlying homoeostatic regulation of SLs in plants, which also provides a rational approach to spatial-temporally manipulate the endogenous SLs and thus architecture of crops and ornamental plants. << Less
Nat. Plants 7:1495-1504(2021) [PubMed] [EuropePMC]
This publication is cited by 2 other entries.