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. 1967 Jun;1(3):500–508. doi: 10.1128/jvi.1.3.500-508.1967

Soluble Antigens of Vaccinia-infected Mammalian Cells II. Time Course of Synthesis of Soluble Antigens and Virus Structural Proteins

Wesley C Wilcox a, Gary H Cohen a,1
PMCID: PMC375265  PMID: 5623969

Abstract

Virus-induced soluble antigens produced in mammalian cells after infection with vaccinia virus can be divided into two classes on the basis of molecular weight. Synthesis of the low molecular weight antigens begins early in the course of infection (1 to 2 hr), and is switched-off rather abruptly 4 to 5 hr after infection in a manner similar to that reported for the early enzymes characteristic of this same system. It was demonstrated, however, that these antigens do not include virus-induced thymidine kinase, a major virus-induced enzyme, nor is it likely that the low molecular weight antigens described here share identity with any of the virus-induced enzymes. A portion of the low molecular weight antigens appear to be incorporated into the structure of newly synthesized virus, probably as internal proteins. In contrast, synthesis of the high molecular weight antigen class is initiated later in the course of infection (4 to 5 hr), just prior to the appearance of newly synthesized virus. Antiserum directed specifically against virus structural proteins forms precipitin bands with all of the high molecular weight antigens recognizable by immunoelectrophoresis. This evidence, coupled with the observation that the high molecular weight antigen fraction elicits production of specific virus-neutralizing antibody, strongly suggests that this antigen class represents virus structural subunits produced in excess.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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