Structural Diversification of Andiconin-Derived Natural Products by α-Ketoglutarate-Dependent Dioxygenases

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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  • Tongxuan Bai
  • Hui Tao
  • Takahiro Mori
  • Yonghui Zhang
  • Ikuro Abe

Related Research Unit(s)


Original languageEnglish
Number of pages5
Journal / PublicationOrganic Letters
Online published13 May 2020
Publication statusOnline published - 13 May 2020


The biosynthetic gene cluster of the fungal meroterpenoid emeridone F (8) was discovered in the genome of Aspergillus sp. TJ23, and its late-stage biosynthesis was elucidated by characterizing two α-ketoglutarate (αKG)-dependent dioxygenases, SptF and SptN. SptF catalyzes oxidative rearrangement followed by epoxidation, whereas SptN serves as the C-9 hydroxylase. Our study provides insight into the biosynthetic mechanisms of other andiconin (1)-derived natural products, exemplifying the important roles of αKG-dependent enzymes in the structural complexifications.