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. 1984 Jul;81(14):4373-7.
doi: 10.1073/pnas.81.14.4373.

Identification of Epstein-Barr virus sequences that encode a nuclear antigen expressed in latently infected lymphocytes

J C Hearing, J C Nicolas, A J Levine

Identification of Epstein-Barr virus sequences that encode a nuclear antigen expressed in latently infected lymphocytes

J C Hearing et al. Proc Natl Acad Sci U S A. 1984 Jul.

Abstract

The Epstein-Barr virus (EBV) BamHI restriction endonuclease fragment K (B95-8 strain) was introduced into a polyoma virus expression vector and used to transfect murine NIH 3T3 cells. An EBV-associated nuclear antigen was detected in these cells in an indirect immunofluorescence test using anti-EBV nuclear antigen-positive human sera. These sera recognized a Mr 88,000 polypeptide in 3T3 cells transfected with the BamHI fragment K-containing polyoma virus plasmid by radioimmunoelectrophoresis. A Mr 88,000 polypeptide also was detected in a B-cell line latently infected with the B95-8 strain of EBV. Plasmids containing insertion and deletion mutations in BamHI fragment K directed the synthesis of truncated forms of the Mr 88,000 polypeptide in 3T3 cells. These data directly demonstrate that the polypeptide identified in EBV-infected lymphocyte lines by anti-EBV nuclear antigen-positive human sera is encoded by the viral genome.

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