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The expression of novel antigens from the Epstein-Barr virus large internal repeat.

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  • Research Article
  • Biology
  • Design
  • Medicine


A large Epstein-Barr virus (EBV) B95-8 genomic bank has been prepared in an Escherichia coli expression vector and screened with a pool of sera from human infectious mononucleosis patients. Four immunopositive clones which also contained sequences from the viral large internal repeat were selected. DNA sequence analysis has located them on the repeat sequence and shown that they come from three potential open reading frames and that two of them consist of overlapping reading frames. This must imply extensive intron/exon splicing or that the repeat itself encodes several different proteins. The four expressed epitopes were shown to be present simultaneously in independent cases of infectious mononucleosis. These have not been previously described and based on the experimental design, they must reflect the situation in vivo.

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