ArticleNature chemical biology2025
Biosynthesis of peptide-nucleobase hybrids in ribosomal peptides.
Article in Nature chemical biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Bis-hydroxylation of Homocitrulline Catalyzed by a Multinuclear Nonheme Iron Oxidative Enzyme during RiPP Biosynthesis.Journal of the American Chemical Society · 2026Article
- Bis-hydroxylation of Homocitrulline Catalyzed by a Multinuclear Nonheme Iron-Dependent Oxidative Enzyme during RiPP Biosynthesis.bioRxiv : the preprint server for biology · 2026Article
- Backbone Thioamidation of a Ribosomal Subunit Protein in Pseudomonadota.Biochemistry · 2026Article
- Pseudokinases can catalyse peptide cyclization through thioether crosslinking.Nature chemistry · 2026Article
- A Versatile Enzymatic Pathway for Modification of Peptide C‑Termini.ACS central science · 2025Article
- Extending the Peptide/Protein Interaction Paradigm to a Protein/Protein Engagement Model in RiPP Biosynthesis.ACS chemical biology · 2025Article
- Synthetic Biology in Natural Product Biosynthesis.Chemical reviews · 2025Review
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5 authors.
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Abstract
The main biopolymers in nature are oligonucleotides and polypeptides. However, naturally occurring peptide-nucleobase hybrids are rare. Here we report the characterization of the founding member of a class of peptide-nucleobase hybrid natural products with a pyrimidone motif from a widely distributed ribosomally synthesized and post-translationally modified (RiPP) biosynthetic pathway. This pathway features two steps where a heteromeric RRE-YcaO-dehydrogenase complex catalyzes the formation of a six-membered pyrimidone ring from an asparagine residue on the precursor peptide, and an acyl esterase selectively recognizes this moiety to cleave the C-terminal follower peptide. Mechanistic studies reveal that the pyrimidone formation occurs in a substrate-assisted catalysis manner, requiring a His residue in the precursor to activate asparagine for heterocyclization. Our study expands the chemotypes of RiPP natural products and the catalytic scope of YcaO enzymes. This discovery opens avenues to create artificial biohybrid molecules that resemble both peptide and nucleobase, a modality of growing interest.
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