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.

  • Letter
  • Published:

Polyacrylamide Gel-electrophoresis across a Molecular Sieve Gradient

Abstract

THE “molecular sieve” effect1–5 of polyacrylamide gel is closely related to the concentration of the gel2, which may be varied over wide limits. The estimates of the “average pore size” differ somewhat, but appear to be roughly in the region of 20, 50 and 150 Å at polyacrylamide concentrations of 20, 7.5 and 3 per cent, respectively2,5, although it is still not clear how much this is affected by the degree of crosslinkage6.

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

Similar content being viewed by others

References

  1. Smithies, O., Biochem. J., 61, 629 (1955).

    Article  CAS  Google Scholar 

  2. Ornstein, L., Ann. N.Y. Acad. Sci., 121, 321 (1964).

    Article  ADS  CAS  Google Scholar 

  3. Raymond, S., Ann. N.Y. Acad. Sci., 121, 351 (1964).

    ADS  Google Scholar 

  4. Raymond, S., and Nakamichi, M., Anal. Biochem., 7, 225 (1964).

    Article  CAS  Google Scholar 

  5. Tombs, M. P., Anal. Biochem., 13, 121 (1965).

    Article  CAS  Google Scholar 

  6. Bloemendal, H., Zone Electrophoresis in Blocks and Columns, 65 (Elsevier, 1963).

    Google Scholar 

  7. Chemical Properties of AM-9, Tech. data sheet No. 2, Cyanamid International.

  8. Poulik, M. D., Nature, 180, 1477 (1957).

    Article  ADS  CAS  Google Scholar 

  9. Ogston, A. G., Brit. Med. Bull., 22, 105 (1966).

    Article  CAS  Google Scholar 

  10. McDougall, E. I., and Synge, R. L. M., Brit. Med. Bull., 22, 115 (1966).

    Article  CAS  Google Scholar 

  11. Margolis, J., and Kenrick, K. G., Biochem. Biophys. Res. Commun., 27, 68 (1967).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

MARGOLIS, J., KENRICK, K. Polyacrylamide Gel-electrophoresis across a Molecular Sieve Gradient. Nature 214, 1334–1336 (1967). https://doi.org/10.1038/2141334a0

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1038/2141334a0

This article is cited by

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

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