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. 1978 Feb;7(2):209–213. doi: 10.1128/jcm.7.2.209-213.1978

Highly sensitive solid-phase radioimmunoassay suitable for determination of low amounts of cholera toxin and cholera toxin antibodies.

M Ceska, F Effenberger, F Grossmüller
PMCID: PMC274893  PMID: 632348

Abstract

A direct solid-phase radioimmunoassay procedure was developed for the determination of cholera toxin and cholera toxin antibody. The reported method employed anti-choleragenoid antibody attached to polystyrene tubes as a solidified binder for cholera toxin. The binding of radioidinated cholera toxin on its solidified antibody was inhibitable by unlabeled cholera toxin and cholera toxin antibody. With the help of this method, the heat stability of cholera toxin was also studied. Radioiodinated cholera toxin was shown to be labeled in both of its subunits. The stability of the iodinated cholera toxin at the reported specific radioactivity is remarkable. It was found that the labeled cholera toxin can be used in the solid-phase radioimmunoassay even 4 months after iodination.

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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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