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nptA | Tryptophan dimethylallyltransferase nptA; Nonribosomal peptide synthase involved in the synthesis of nidulanin A and derived compounds. Nidulanin A is a tetracyclopeptide with the sequence L-Phe-L-Kyn-L-Val-D-Val and an isoprene unit N-linked to the amino group of L-kynurenine. The NRPS nlsA is responsible of the synthesis of the cyclopeptide and the prenyltransferase nptA adds the isoprene unit on the L-kynurenine residue of nidulanin A. Further modifications lead to additional oxygenated related compounds. (434 aa) | ||||
xptB | Xanthone prenyltransferase B; Dehydrogenase involved in the conversion of monodictyphenone to the prenyl xanthones such as emericellin, shamixanthone and epishamixanthone. Monodictyphenone is first converted to variecoxanthone A via a paeciloxanthone intermediate by the consecutive actions of the FAD-dependent monooxygenase mdpD and the xanthone prenyltransferase xptB. XptB catalyzes regular O-prenylation at the hydroxy group of C-7 of the xanthone ring. Variecoxanthone A is further prenylated to emericellin by xptA before being reduced to shamixanthone and epishamixanthone by the dehy [...] (463 aa) | ||||
ausN | Polyprenyl transferase ausN; Polyprenyl transferase; part of the gene cluster B that mediates the biosynthesis of austinol and dehydroaustinol, two fungal meroterpenoids. The first step of the pathway is the synthesis of 3,5-dimethylorsellinic acid by the polyketide synthase ausA. 3,5-dimethylorsellinic acid is then prenylated by the polyprenyl transferase ausN. Further epoxidation by the FAD-dependent monooxygenase ausM and cyclization by the probable terpene cyclase ausL lead to the formation of protoaustinoid A. Protoaustinoid A is then oxidized to spiro-lactone preaustinoid A3 by t [...] (330 aa) | ||||
ausL | Terpene cyclase ausL; Terpene cyclase; part of the gene cluster B that mediates the biosynthesis of austinol and dehydroaustinol, two fungal meroterpenoids. The first step of the pathway is the synthesis of 3,5-dimethylorsellinic acid by the polyketide synthase ausA. 3,5-dimethylorsellinic acid is then prenylated by the polyprenyl transferase ausN. Further epoxidation by the FAD-dependent monooxygenase ausM and cyclization by the probable terpene cyclase ausL lead to the formation of protoaustinoid A. Protoaustinoid A is then oxidized to spiro-lactone preaustinoid A3 by the combined ac [...] (204 aa) | ||||
xptA | Xanthone prenyltransferase A; Dehydrogenase involved in the conversion of monodictyphenone to the prenyl xanthones such as emericellin, shamixanthone and epishamixanthone. Monodictyphenone is first converted to variecoxanthone A via a paeciloxanthone intermediate by the consecutive actions of the FAD-dependent monooxygenase mdpD and the xanthone prenyltransferase xptB. XptB catalyzes regular O-prenylation at the hydroxy group of C-7 of the xanthone ring. Variecoxanthone A is further prenylated to emericellin by xptA before being reduced to shamixanthone and epishamixanthone by the dehy [...] (446 aa) |