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J Virol. 1984 December; 52(3): 953-959

Analysis of three late varicella-zoster virus proteins, a 125,000-molecular-weight protein and gp1 and gp3.

ABSTRACT

Two monoclonal antibodies were prepared against varicella-zoster virus proteins. One of the monoclonal antibodies (10.2) reacted only with the nuclei of infected cells and immunoprecipitated one nonglycosylated late viral protein (125,000 molecular weight). The other monoclonal antibody (19.1) with neutralizing activity, reacted with membrane antigens of infected cells and with the varicella-zoster virus envelope and immunoprecipitated two late major viral glycoproteins (gp1 and gp3). Synthesis of the 125,000-molecular-weight protein, gp1, and gp3 began at 20 to 22 h postinfection, 2 h after the peak of viral DNA synthesis, and continued until 29 h postinfection, when the first progeny virus appeared in infected cells. Pulse-chase experiments showed that during pulse-labeling, only gp1 was detected, whereas during the chase period, gp1 as well as gp3 was detected in infected cells. Under nonreducing conditions, gp3 migrated in sodium dodecyl sulfate-polyacrylamide gel electrophoresis as a 130,000-molecular-weight protein as compared with the 62,000-molecular-weight species obtained when gels were resolved under reducing conditions. This finding indicates that gp3 is a dimer that is disulfide linked.

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