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Biochem J. Mar 1970; 117(1): 49–55.
PMCID: PMC1178828

Separation of antigens by immunological specificity. Studies on the desorption of homologous antigen from disulphide-linked antibody immunosorbents

Abstract

1. Glycine–hydrochloric acid buffer, pH2.2, desorbed 131I-labelled human serum albumin (100%), lysozyme (100%), ovalbumin (90%), fluorescent ovalbumin (50–60%) and fluorescent human γ-globulin (20%) from their respective homologous disulphide-linked antibody immunosorbents; reasons are suggested for the low recoveries of the fluorescently labelled proteins. 2. Approx. 40% of the recovered 131I-labelled human serum albumin and fluorescent ovalbumin was desorbed above pH6.0, but lysozyme was not eluted until the pH was 3.0 or below. 3. In all cases where high recoveries of antigen were obtained, the immunosorbents could be regenerated and recycled at least four times with full retention of specificity and minimal diminution of capacity. 4. The desorbed antigens were unchanged when compared with the original antigens by quantitative precipitin, specificradioactivity, fluorescent and enzymic analyses and by cellulose acetate electrophoresis. 5. Desorption of antigen with a variety of reagents was investigated. These reagents were less satisfactory than glycine–hydrochloric acid.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
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