{"title":"<i>rm</i>Combi-OGAB for the Directed Evolution of a Biosynthetic Gene Cluster toward Productivity Improvement.","authors":"Naoki Miyamoto, Kentaro Hayashi, Naohisa Ogata, Naoyuki Yamada, Kenji Tsuge","doi":"10.1021/acssynbio.4c00734","DOIUrl":null,"url":null,"abstract":"<p><p><u><b>Combi</b></u>natorial <u><b>O</b></u>rdered <u><b>G</b></u>ene <u><b>A</b></u>ssembly in <u><b><i>B</i></b></u><i>acillus subtilis</i> (Combi-OGAB) enables construction of combinatorial libraries of various genetic elements, such as promoters in a biosynthetic gene cluster (BGC), and screening of highly productive combinations from the library. The combinations are limited by the library design, and the selectable productivity is defined within the combination. To refine the selected BGC using conventional Combi-OGAB with expanded diversity, we devised a directed evolutionary method called as <u><b>r</b></u>andom <u><b>m</b></u>utagenesis with <u><b>Combi-OGAB</b></u> (<i>rm</i>Combi-OGAB), which includes random mutagenesis by error-prone PCR and Combi-OGAB. In the present study, Gramicidin S (GS)-producing plasmids were used to examine the utility of <i>rm</i>Combi-OGAB. GS plasmids, originally generated using conventional Combi-OGAB, were successfully evolved using <i>rm</i>Combi-OGAB. <i>B. subtilis</i> carrying the evolved plasmid with unpredictable mutations showed a 1.5-fold improvement in the GS productivity. We thus expect that <i>rm</i>Combi-OGAB can be applied to various BGCs for useful products, such as antibiotics, to improve their productivity.</p>","PeriodicalId":26,"journal":{"name":"ACS Synthetic Biology","volume":" ","pages":""},"PeriodicalIF":3.7000,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Synthetic Biology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1021/acssynbio.4c00734","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMICAL RESEARCH METHODS","Score":null,"Total":0}
引用次数: 0
Abstract
Combinatorial Ordered Gene Assembly in Bacillus subtilis (Combi-OGAB) enables construction of combinatorial libraries of various genetic elements, such as promoters in a biosynthetic gene cluster (BGC), and screening of highly productive combinations from the library. The combinations are limited by the library design, and the selectable productivity is defined within the combination. To refine the selected BGC using conventional Combi-OGAB with expanded diversity, we devised a directed evolutionary method called as random mutagenesis with Combi-OGAB (rmCombi-OGAB), which includes random mutagenesis by error-prone PCR and Combi-OGAB. In the present study, Gramicidin S (GS)-producing plasmids were used to examine the utility of rmCombi-OGAB. GS plasmids, originally generated using conventional Combi-OGAB, were successfully evolved using rmCombi-OGAB. B. subtilis carrying the evolved plasmid with unpredictable mutations showed a 1.5-fold improvement in the GS productivity. We thus expect that rmCombi-OGAB can be applied to various BGCs for useful products, such as antibiotics, to improve their productivity.
期刊介绍:
The journal is particularly interested in studies on the design and synthesis of new genetic circuits and gene products; computational methods in the design of systems; and integrative applied approaches to understanding disease and metabolism.
Topics may include, but are not limited to:
Design and optimization of genetic systems
Genetic circuit design and their principles for their organization into programs
Computational methods to aid the design of genetic systems
Experimental methods to quantify genetic parts, circuits, and metabolic fluxes
Genetic parts libraries: their creation, analysis, and ontological representation
Protein engineering including computational design
Metabolic engineering and cellular manufacturing, including biomass conversion
Natural product access, engineering, and production
Creative and innovative applications of cellular programming
Medical applications, tissue engineering, and the programming of therapeutic cells
Minimal cell design and construction
Genomics and genome replacement strategies
Viral engineering
Automated and robotic assembly platforms for synthetic biology
DNA synthesis methodologies
Metagenomics and synthetic metagenomic analysis
Bioinformatics applied to gene discovery, chemoinformatics, and pathway construction
Gene optimization
Methods for genome-scale measurements of transcription and metabolomics
Systems biology and methods to integrate multiple data sources
in vitro and cell-free synthetic biology and molecular programming
Nucleic acid engineering.