Abstract
Selective retrieval of sequence-verified oligonucleotides (oligos) from next-generation sequencing (NGS) flow cells, termed megacloning, promises accurate and reliable gene synthesis. However, gene assembly requires a complete collection of overlapping sense and nonsense oligos, and megacloning does not typically guarantee the complete production of sequence-verified oligos. Therefore, missing oligos must be provided via repetitive rounds of megacloning, which introduces a bottleneck for scaled-up efforts at gene assembly. Here, we introduce the concept of high-depth tiled oligo design to successfully utilize megacloned oligos for gene synthesis. Using acquired oligos from a single round of the megacloning process, we assembled 72 of 81 target Cas9-coding gene variants. We further validated 62 of these cas9 constructs, and deposited the plasmids to Addgene for subsequent functional characterization by the scientific community. This study demonstrates the utility of using sequence-verified oligos for DNA assembly and provides a practical and reliable optimized method for high-throughput gene synthesis.
Original language | English |
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Article number | e55 |
Journal | Nucleic acids research |
Volume | 46 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2018 May |
Bibliographical note
Funding Information:Pioneer Research Center Program [NRF-2012–0009557] through the National Research Foundation of Korea, funded by the Ministry of Science, ICT & Future Planning; Mid-career Researcher Program [NRF-2015R1A2A1A10055972] through the National Research Foundation of Korea, funded by the Ministry of Science, ICT & Future Planning; Bio & Medical Technology Development Program [NRF-2016M3A9B6948494] through the National Research Foundation of Korea, funded by the Ministry of Science, ICT & Future Planning; Center Program [NRF-2015K1A4A3047345] through the National Research Foundation of Korea, funded by the Ministry of Science, ICT & Future Planning; Nano•Material Technology Development Program [NRF-2012M3A7A9671610] hrough the National Research Foundation of Korea, funded by the Ministry of Science, ICT & Future Planning. Funding for open access charge: Mid-career Researcher Program [NRF-2015R1A2A1A10055972] through the National Research Foundation of Korea, funded by the Ministry of Science, ICT & Future Planning. Conflict of interest statement. D.B., N.C., H.N.S. and E.K. are the authors of a patent application for the method described in this manuscript (Method for synthesizing gene using high-depth oligonucleotide tiling, US 15/184,805, 2016.06.16). The remaining authors declare they have no competing financial interest.
Publisher Copyright:
© The Author(s) 2018. Published by Oxford University Press on behalf of Nucleic Acids Research.
All Science Journal Classification (ASJC) codes
- Genetics