ArticleNature communications2025
An orthogonal transcription mutation system generating all transition mutations for accelerated protein evolution in vivo.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Hijacking host RNA polymerase for processive in situ mutagenesis.Synthetic and systems biotechnology · 2027Article
- Harnessing the central dogma: Enzyme-driven gene diversification strategies for in cellulo continuous directed evolution.Fundamental research · 2026Review
- Exploring the Evolutionary Landscape with Targeted In Vivo Hypermutations.Biomedicines · 2026Review
- Combining Electrochemical Reduction with Biosynthesis for Directed Conversion of COAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
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Authors and funding
5 authors.
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Abstract
Targeted mutagenesis systems are critical for protein evolution. Current deaminase-T7 RNA polymerase fusion systems enable gene-specific mutagenesis but remain limited to certain model organisms. Here, we develop an orthogonal transcription mutation system for in vivo hypermutation in both non-model organism Halomonas bluephagenesis and E. coli, achieving >1,500,000-fold increased mutation rates. By fusing deaminases with three phage RNA polymerases, this system uniformly introduces C:G to T:A and A:T to G:C mutations across target genes. The system demonstrates high specificity, minimal off-target effects, and high orthogonality between phage polymerases. We apply this system to rapidly evolve fluorescent proteins, chromoproteins, cytoskeletal proteins, cell division-related proteins, global sigma factor, and the LysE exporter within a single day of the mutagenesis process. Overall, the orthogonal transcription mutation system is a modular and versatile platform that accelerates protein evolution in the shortest period reported so far.
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