Enzyme immunoassay for determining antigen specific antibodies a

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving virus or bacteriophage

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435 7, 435177, 435188, 435810, 424 12, 23230B, G01N 3354, C12Q 170, C12N 996

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active

043473113

ABSTRACT:
A highly sensitive enzyme immunoassay procedure is disclosed for determining IgM-, IgA-, IgG- and IgE- antibodies which are specific to antigens by coating a solid support with an antibody which selectively binds the antibody to be determined in a serum specimen and reacting the selectively bound antibody with an enzyme labeled microbe or antigen and then determining the enzyme activity of the reaction product as a measure of the antibody to be detected. As the antigen can be effectively labeled a relatively impure antigen can be labeled and used in high dilutions resulting in a very sensitive assay; purification by column chromatography is unnecessary. A kit for conducting the assay is also disclosed.

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Leinikki et al., "Determination of Virus-Specific IgM Antibodies by Using ELISA: Elimination of False-Positive Results with Protein A-Sepharose Absorption and Subsequent IgM Antibody Assay", J. Lab. Clin. Med., vol. 92, No. 6, (1978), pp. 849-857.
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