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  • Title: Effect of tunicamycin on the synthesis of herpes simplex virus type 1 glycoproteins and their expression on the cell surface.
    Author: Norrild B, Pedersen B.
    Journal: J Virol; 1982 Aug; 43(2):395-402. PubMed ID: 6180176.
    Abstract:
    Herpes simplex virus specifies five glycoproteins which have been found on the surface of both the intact, infected cells and the virion envelope. In the presence of the drug tunicamycin, glycosylation of the herpes simplex virus type 1 glycoproteins is inhibited. We present in this report evidence that the immunologically specificity of the glycoproteins designated gA, gB, and gD resides mainly in the underglycosylated "core" proteins, as demonstrated by the immunoblotting technique. We showed also that tunicamycin prevented exposure of the viral glycoproteins on the cell surface, as the individual glycoproteins lost their ability to participate as targets for the specific antibodies applied in the antibody-dependent, cell-mediated cytotoxicity test. Immunocytolysis was reduced between 73 and 97%, depending on the specificity of the antibodies used. The intracellular processing of the herpes simplex virus type 1-specific glycoprotein designated gC differed from the processing of gA, gB, and GD, as evidenced by the identification of an underglycosylated but immunochemically modified form of gC on the surface of infected cells grown in the presence of tunicamycin.
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