Development of a versatile high-throughput mutagenesis assay with multiplexed short-read NGS using DNA-barcoded supF shuttle vector library amplified in E. coli

A forward mutagenesis assay using the gene has been widely employed for the last several decades in studies addressing mutation frequencies and mutation spectra associated with various intrinsic and environmental mutagens. In this study, by using a shuttle vector and non-SOS-induced with short-read...

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Bibliographic Details
Published in:	eLife Vol. 11
Main Authors:	Kawai, Hidehiko, Iwata, Ren, Ebi, Shungo, Sugihara, Ryusei, Masuda, Shogo, Fujiwara, Chiho, Kimura, Shingo, Kamiya, Hiroyuki
Format:	Journal Article
Language:	English
Published:	England eLife Science Publications, Ltd 10-10-2022 eLife Sciences Publications Ltd eLife Sciences Publications, Ltd
Subjects:	Antibiotics Bar codes Base Sequence Cell Biology DNA DNA repair E coli Escherichia coli Escherichia coli - genetics Experiments Genes Genetic Vectors High-Throughput Nucleotide Sequencing Mutagenesis mutagenesis assay Mutagens Mutation Next-generation sequencing NGS Plasmids RNA, Transfer - genetics Spectrum analysis supF SupF gene Transfer RNA UV mutagenesis Japan mutagenesis assay cell biology NGS none UV mutagenesis supF
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Summary:	A forward mutagenesis assay using the gene has been widely employed for the last several decades in studies addressing mutation frequencies and mutation spectra associated with various intrinsic and environmental mutagens. In this study, by using a shuttle vector and non-SOS-induced with short-read next-generation sequencing (NGS) technology, we present an advanced method for the study of mutations, which is simple, versatile, and cost-effective. We demonstrate the performance of our newly developed assay via pilot experiments with ultraviolet (UV) irradiation, the results from which emerge more relevant than expected. The NGS data obtained from samples of the indicator grown on titer plates provides mutation frequency and spectrum data, and uncovers obscure mutations that cannot be detected by a conventional assay. Furthermore, a very small amount of NGS data from selection plates reveals the almost full spectrum of mutations in each specimen and offers us a novel insight into the mechanisms of mutagenesis, despite them being considered already well known. We believe that the method presented here will contribute to future opportunities for research on mutagenesis, DNA repair, and cancer.
ISSN:	2050-084X 2050-084X
DOI:	10.7554/eLife.83780