Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letters to Editor
  • Published:

Left-handed Helical Polynucleotides with D-Sugar Phosphodiester Backbones

Abstract

Naturally occurring polynucleotides have right-handed helical confrontations in the solid state1 and in solution2. Poly(dI-dC)poly(dI-dC) was found to form a left-handed helix in spite of the D-sugar backbone. Also, L-adenylyl-(3′–5′)-L-adenosine synthesized by Tazawa et al4. takes up the left-handed stacked conformation. We had synthesized a dinucleoside monophosphate, 8,2′-anhydro-8-mercapto-9-β-D-arabinofuranosyladenine phosphoryl-(3′–5′)-8,2′-anhydro-8-mercapto-9-β-D-arabinofuranosyladenine (AspAs) (molecular structure Ia; see also ref. 5), and this compound has a left-handed stacked conformation. The two bases in Ia, having the D-sugar backbone, stacked along the left-handed helical axis; these bases are fixed at ϕCN = −108° (syn-anti region) by the anhydro linkages.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

References

  1. Davies, D. R., Ann. Rev. Biochem., 36, 321 (1967).

    Article  CAS  Google Scholar 

  2. Cantor, C. R., and Tinoco, I., jun., J. Mol. Biol., 13, 65 (1965).

    Article  CAS  Google Scholar 

  3. Mitsui, Y., Langridge, R., Shortle, B. E., Cantor, C. R., Grant, R. C., Kodama, M., and Wells, R. D., Nature, 228, 1166 (1970).

    Article  CAS  Google Scholar 

  4. Tazawa, I., Tazawa, S., Stempel, L. M., and Ts'o, P. O. P., Biochemistry, 9, 3499 (1970).

    Article  CAS  Google Scholar 

  5. Ikehara, M., Uesugi, S., and Yasumoto, M., J. Amer. Chem. Soc., 92, 4735 (1970).

    Article  CAS  Google Scholar 

  6. Ikehara, M., and Kaneko, M., Chem. Pharmac. Bull., 18, 2401 (1970).

    Article  CAS  Google Scholar 

  7. Tinoco, I., jun., Woody, R. W., and Bradley, D. F., J. Chem. Phys., 38, 1317 (1963).

    Article  CAS  Google Scholar 

  8. Ts'o, P. O. P., Kondo, N. S., Schweizer, M. P., and Hollis, D. P., Biochemistry, 8, 997 (1969).

    Article  CAS  Google Scholar 

  9. Ikehara, M., and Uesugi, S., Tetrahed. Lett., 713 (1970).

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

IKEHARA, M., UESUGI, S. & YANO, J. Left-handed Helical Polynucleotides with D-Sugar Phosphodiester Backbones. Nature New Biology 240, 16–17 (1972). https://doi.org/10.1038/newbio240016a0

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1038/newbio240016a0

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing