Abstract
A two-site enzyme (TSE) immunoassay was developed for the quantitation of the Epstein-Barr virus (EBV)-determined nuclear antigen (EBNA) using a rabbit serum raised against a synthetic peptide derived from the BamHI K region of the viral genome. Comparison of 12 EBNA-positive and 3 negative cell lines proved that the test was EBV-specific. A dot-blot assay utilizing cloned and nick translated EBV-DNA BamHI M fragment confirmed the EBV-carrier status of the EBNA-positive lines. The results obtained with both the TSE immunoassay and dot-blot assay were in agreement with published values. In contrast to earlier reports, we could not demonstrate any correlation between the content of EBNA and the number of viral genome copies.
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