Abstract
The anionic detergent sodium lauryl sulfate (SLS), in a final concentration of 0.1% and greater, reacted with whole serum in agar diffusion and immunoelectrophoresis to form artifactual precipitin lines. These lines occurred when either Ionagar or agarose was used as the supporting gel and were not affected by the presence of urea and 2-mercaptoethanol. Analytic chemical tests confirmed that the precipitating agent is SLS, and staining techniques showed that the detergent precipitates both protein and lipoprotein components of whole serum. Multiple artifactual precipitin lines occurred with a wide variety of animal sera, and a single line formed with human 7S immunoglobulin. Hence, in agar diffusion studies in which SLS is present in the test system, these artifactual lines may be easily misinterpreted as true antigen-antibody precipitin reactions.
Full text
PDF
Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Kunin C. M., Tupasi T. Non-antigen-antibody precipitin reactions observed with dextran sulfate, DEAE-dextran, antibiotics, proteins, and phospholipids. Proc Soc Exp Biol Med. 1970 Mar;133(3):858–861. doi: 10.3181/00379727-133-34580. [DOI] [PubMed] [Google Scholar]
- Laver W. G., Valentine R. C. Morphology of the isolated hemagglutinin and neuraminidase subunits of influenza virus. Virology. 1969 May;38(1):105–119. doi: 10.1016/0042-6822(69)90132-9. [DOI] [PubMed] [Google Scholar]
- OUCHTERLONY O. Diffusion-in-gel methods for immunological analysis. Prog Allergy. 1958;5:1–78. [PubMed] [Google Scholar]
- SCHEIDEGGER J. J. Une micro-méthode de l'immuno-electrophorèse. Int Arch Allergy Appl Immunol. 1955;7(2):103–110. [PubMed] [Google Scholar]