Improvement of the dideoxy chain termination method of DNA sequencing by use of deoxy-7-deazaguanosine triphosphate in place of dGTP (original) (raw)

Abstract

The dideoxy chain termination method using deoxy-7-deazaguanosine triphosphate (dc7GTP) in place of dGTP was found to be very useful. Sequencing of a part of the human N-myc gene having 85% GC content is impossible by the original method using dGTP, because of compression of bands. However, the nucleotide sequence of this part was unambiguously determined by analysis of both strands by the modified method. Use of dc7GTP is concluded to improve the dideoxy chain termination method for DNA sequencing.

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Selected References

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  1. Gough J. A., Murray N. E. Sequence diversity among related genes for recognition of specific targets in DNA molecules. J Mol Biol. 1983 May 5;166(1):1–19. doi: 10.1016/s0022-2836(83)80047-3. [DOI] [PubMed] [Google Scholar]
  2. Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Schwab M., Varmus H. E., Bishop J. M. Human N-myc gene contributes to neoplastic transformation of mammalian cells in culture. Nature. 1985 Jul 11;316(6024):160–162. doi: 10.1038/316160a0. [DOI] [PubMed] [Google Scholar]
  4. Seela F., Tran-Thi Q. H., Franzen D. Poly(7-deazaguanylic acid), the homopolynucleotide of the parent nucleoside of queuosine. Biochemistry. 1982 Aug 31;21(18):4338–4343. doi: 10.1021/bi00261a024. [DOI] [PubMed] [Google Scholar]
  5. Yanisch-Perron C., Vieira J., Messing J. Improved M13 phage cloning vectors and host strains: nucleotide sequences of the M13mp18 and pUC19 vectors. Gene. 1985;33(1):103–119. doi: 10.1016/0378-1119(85)90120-9. [DOI] [PubMed] [Google Scholar]