Enzymes
| UniProtKB help_outline | 1 proteins |
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- Name help_outline 10-deacetyl-2-debenzoylbaccatin III Identifier CHEBI:32897 Charge 0 Formula C22H32O9 InChIKeyhelp_outline LHXBWTCSJBQSGI-QOBCYHTASA-N SMILEShelp_outline [H][C@]12[C@H](O)[C@]3(O)C[C@H](O)C(C)=C([C@@H](O)C(=O)[C@]1(C)[C@@H](O)C[C@H]1OC[C@@]21OC(C)=O)C3(C)C 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline benzoyl-CoA Identifier CHEBI:57369 Charge -4 Formula C28H36N7O17P3S InChIKeyhelp_outline VEVJTUNLALKRNO-TYHXJLICSA-J SMILEShelp_outline CC(C)(COP([O-])(=O)OP([O-])(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP([O-])([O-])=O)n1cnc2c(N)ncnc12)[C@@H](O)C(=O)NCCC(=O)NCCSC(=O)c1ccccc1 2D coordinates Mol file for the small molecule Search links Involved in 27 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 10-deacetylbaccatin III Identifier CHEBI:18193 (CAS: 32981-86-5) help_outline Charge 0 Formula C29H36O10 InChIKeyhelp_outline YWLXLRUDGLRYDR-ZHPRIASZSA-N SMILEShelp_outline [H][C@]12[C@H](OC(=O)c3ccccc3)[C@]3(O)C[C@H](O)C(C)=C([C@@H](O)C(=O)[C@]1(C)[C@@H](O)C[C@H]1OC[C@@]21OC(C)=O)C3(C)C 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline CoA Identifier CHEBI:57287 (Beilstein: 11604429) help_outline Charge -4 Formula C21H32N7O16P3S InChIKeyhelp_outline RGJOEKWQDUBAIZ-IBOSZNHHSA-J SMILEShelp_outline CC(C)(COP([O-])(=O)OP([O-])(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP([O-])([O-])=O)n1cnc2c(N)ncnc12)[C@@H](O)C(=O)NCCC(=O)NCCS 2D coordinates Mol file for the small molecule Search links Involved in 1,500 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:18741 | RHEA:18742 | RHEA:18743 | RHEA:18744 | |
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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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Taxol biosynthesis: molecular cloning of a benzoyl-CoA:taxane 2alpha-O-benzoyltransferase cDNA from Taxus and functional expression in Escherichia coli.
Walker K., Croteau R.B.
A cDNA clone encoding a taxane 2alpha-O-benzoyltransferase has been isolated from Taxus cuspidata. The recombinant enzyme catalyzes the conversion of 2-debenzoyl-7,13-diacetylbaccatin III, a semisynthetic substrate, to 7,13-diacetylbaccatin III, and thus appears to function in a late-stage acylati ... >> More
A cDNA clone encoding a taxane 2alpha-O-benzoyltransferase has been isolated from Taxus cuspidata. The recombinant enzyme catalyzes the conversion of 2-debenzoyl-7,13-diacetylbaccatin III, a semisynthetic substrate, to 7,13-diacetylbaccatin III, and thus appears to function in a late-stage acylation step of the Taxol biosynthetic pathway. By employing a homology-based PCR cloning strategy for generating acyltransferase oligodeoxynucleotide probes, several gene fragments were amplified and used to screen a cDNA library constructed from mRNA isolated from methyl jasmonate-induced Taxus cells, from which several full-length acyltransferases were obtained and individually expressed in Escherichia coli. The functionally expressed benzoyltransferase was confirmed by radio-HPLC, (1)H-NMR, and combined HPLC-MS verification of the product, 7, 13-diacetylbaccatin III, derived from 2-debenzoyl-7, 13-diacetylbaccatin III and benzoyl-CoA as cosubstrates in the corresponding cell-free extract. The full-length cDNA has an open reading frame of 1,320 base pairs and encodes a protein of 440 residues with a molecular weight of 50,089. The recombinant benzoyltransferase has a pH optimum of 8.0, K(m) values of 0.64 mM and 0.30 mM for the taxoid substrate and benzoyl-CoA, respectively, and is apparently regiospecific for acylation of the 2alpha-hydroxyl group of the functionalized taxane nucleus. This enzyme may be used to improve the production yields of Taxol and for the semisynthesis of drug analogs bearing modified aroyl groups at the C2 position. << Less
Proc. Natl. Acad. Sci. U.S.A. 97:13591-13596(2000) [PubMed] [EuropePMC]