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- W4386422015 abstract "Abstract Diazo compounds are rare natural products possessing various biological activities. Kinamycin and lomaiviticin, two diazo natural products featured by the diazobenzofluorene core, exhibit exceptional potency as chemotherapeutic agents. Despite the extensive studies on their biosynthetic gene clusters and the assembly of their polyketide scaffolds, the formation of the characteristic diazo group remains elusive. l -Glutamylhydrazine was recently shown to be the hydrazine donor in kinamycin biosynthesis, however, the mechanism for the installation of the hydrazine group onto the kinamycin scaffold is still unclear. Here we describe an O -methyltransferase-like protein, AlpH, which is responsible for the hydrazine incorporation in kinamycin biosynthesis. AlpH catalyses a unique SAM-independent coupling of l -glutamylhydrazine and polyketide intermediate via a rare Mannich reaction in polyketide biosynthesis. Our discovery expands the catalytic diversity of O -methyltransferase-like enzymes and lays a strong foundation for the discovery and development of novel diazo natural products through genome mining and synthetic biology." @default.
- W4386422015 created "2023-09-05" @default.
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- W4386422015 date "2023-09-04" @default.
- W4386422015 modified "2023-10-16" @default.
- W4386422015 title "O-methyltransferase-like enzyme catalyzed diazo installation in polyketide biosynthesis" @default.
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- W4386422015 doi "https://doi.org/10.1038/s41467-023-41062-7" @default.
- W4386422015 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37666836" @default.
- W4386422015 hasPublicationYear "2023" @default.