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Kim DR, Kim TS, Kim E, Min SJ, Shin D, Ahn DR. Synthesis of 3'-O-fluorescently mono-modified reversible terminators and their uses in sequencing-by-synthesis. Bioorg Med Chem Lett 2013; 24:209-13. [PMID: 24332495 DOI: 10.1016/j.bmcl.2013.11.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 11/13/2013] [Accepted: 11/15/2013] [Indexed: 11/18/2022]
Abstract
Next-generation sequencing (NGS) technologies recently developed are now used for study of genomes from various organisms. Sequencing-by-synthesis (SBS) is a key strategy in the NGS. The SBS uses nucleotides so-called dual-modified reversible terminators (DRTs) in which bases are labeled with fluorophores and 3'-OH is protected with a reversibly cleavable chemical group, respectively. In this study, we examined the possibility of performing SBS with mono-modified reversible terminators (MRTs), in which the reversible blocking group on the 3'-OH plays a dual role as a fluorescent signal report as well as a chemical protection. We studied cyclic reversible termination by using two MRTs (dA and dT), wherein the modifications were two different fluorophores and cleavable to regenerate a free 3'-OH. We here demonstrated that SBS could be achieved with incorporation of MRTs by a DNA polymerase and correct base-calls based on the two different colors from the fluorophores.
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Affiliation(s)
- Da-Rae Kim
- Center for Theragnosis, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Taek-Soo Kim
- College of Pharmacy, Gachon University, 191 Hambakmoero, Yoensu-Gu, Incheon, Republic of Korea
| | - Eunsun Kim
- Center for Neuro-medicine, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Sun-Joon Min
- Center for Neuro-medicine, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea; Department of Biological Chemistry, University of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Dongyun Shin
- College of Pharmacy, Gachon University, 191 Hambakmoero, Yoensu-Gu, Incheon, Republic of Korea.
| | - Dae-Ro Ahn
- Center for Theragnosis, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea; Department of Biological Chemistry, University of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea.
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