Expression of an early, nonstructural antigen of herpes simplex virus in cell transformed in vitro by herpes simplex virus

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Abstract
Hyperimmune rabbit antiserum to an early, nonstructural herpes simplex virus type 2 (HSV-2)-induced polypeptide (VP143) reacted in immunofluorescence tests with a variety of cell lines transformed by HSV-2. Cytoplasmic fluorescence was observed in 10 to 50% of HSV-2-transformed cells, whereas no fluorescence was observed in cells transformed by other oncogenic DNA viruses or by a chemical carcinogen. VP143-specific reactivity could be absorbed from anti-VP143 serum with HSV-2-transformed cells but not with cells transformed by other agents. When HSV-2-transformed cells were synchronized in mitosis and examined at various times postmitosis for VP143-specific fluorescence, the expression of VP143 was shown to be cell cycle dependent.