Enzymes
| UniProtKB help_outline | 1 proteins |
| Enzyme class help_outline |
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- Name help_outline 2-O,3-dimethylflaviolin Identifier CHEBI:78589 Charge -1 Formula C12H9O5 InChIKeyhelp_outline MMVQTVRCJUHCSV-UHFFFAOYSA-M SMILEShelp_outline COC1=C(C)C(=O)c2c(O)cc([O-])cc2C1=O 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 (2E)-geranyl diphosphate Identifier CHEBI:58057 (Beilstein: 4549979) help_outline Charge -3 Formula C10H17O7P2 InChIKeyhelp_outline GVVPGTZRZFNKDS-JXMROGBWSA-K SMILEShelp_outline CC(C)=CCC\C(C)=C\COP([O-])(=O)OP([O-])([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 61 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,521 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 7-O-geranyl-2-O,3-dimethylflaviolin Identifier CHEBI:78590 Charge 0 Formula C22H26O5 InChIKeyhelp_outline JSICQLYEVMVRNL-NTEUORMPSA-N SMILEShelp_outline COC1=C(C)C(=O)c2c(O)cc(OC\C=C(/C)CCC=C(C)C)cc2C1=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 diphosphate Identifier CHEBI:33019 (Beilstein: 185088) help_outline Charge -3 Formula HO7P2 InChIKeyhelp_outline XPPKVPWEQAFLFU-UHFFFAOYSA-K SMILEShelp_outline OP([O-])(=O)OP([O-])([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 1,139 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:33839 | RHEA:33840 | RHEA:33841 | RHEA:33842 | |
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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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Functional characterization of the promiscuous prenyltransferase responsible for furaquinocin biosynthesis: identification of a physiological polyketide substrate and its prenylated reaction products.
Kumano T., Tomita T., Nishiyama M., Kuzuyama T.
Furaquinocin is a natural polyketide-isoprenoid hybrid (meroterpenoid) that exhibits antitumor activity and is produced by the Streptomyces sp. strain KO-3988. Bioinformatic analysis of furaquinocin biosynthesis has identified Fur7 as a possible prenyltransferase that attaches a geranyl group to a ... >> More
Furaquinocin is a natural polyketide-isoprenoid hybrid (meroterpenoid) that exhibits antitumor activity and is produced by the Streptomyces sp. strain KO-3988. Bioinformatic analysis of furaquinocin biosynthesis has identified Fur7 as a possible prenyltransferase that attaches a geranyl group to an unidentified polyketide scaffold. Here, we report the identification of a physiological polyketide substrate for Fur7, as well as its reaction product and the biochemical characterization of Fur7. A Streptomyces albus transformant (S. albus/pWHM-Fur2_del7) harboring the furaquinocin biosynthetic gene cluster lacking the fur7 gene did not produce furaquinocin but synthesized the novel intermediate 2-methoxy-3-methyl-flaviolin. After expression and purification from Escherichia coli, the recombinant Fur7 enzyme catalyzed the transfer of a geranyl group to 2-methoxy-3-methyl-flaviolin to yield 6-prenyl-2-methoxy-3-methyl-flaviolin and 7-O-geranyl-2-methoxy-3-methyl-flaviolin in a 10:1 ratio. The reaction proceeded independently of divalent cations. When 6-prenyl-2-methoxy-3-methyl-flaviolin was added to the culture medium of S. albus/pWHM-Fur2_del7, furaquinocin production was restored. The promiscuous substrate specificity of Fur7 was demonstrated with respect to prenyl acceptor substrates and prenyl donor substrates. The steady-state kinetic constants of Fur7 with each prenyl acceptor substrate were also calculated. << Less
J. Biol. Chem. 285:39663-39671(2010) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.