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. 1983 Oct;48(1):10–17. doi: 10.1128/jvi.48.1.10-17.1983

In vitro and in vivo studies of bovine parvovirus proteins.

M Lederman, R C Bates, E R Stout
PMCID: PMC255317  PMID: 6887348

Abstract

Total cytoplasmic RNA from bovine parvovirus (BPV)-infected cells or BPV-specific RNA selected by hybridization to cloned BPV genomic sequences were translated in a message-dependent rabbit reticulocyte lysate. Immunoprecipitation, using immunoglobulin G from rabbits injected with purified BPV, resulted in the detection of [35S]methionine-labeled polypeptides with MrS of 80,000, 72,000, 62,000, and 60,000. These in vitro translation products had the same mobility on sodium dodecyl sulfate-polyacrylamide gels as that of the four proteins found in purified virions. The three largest polypeptides had amino acid sequence homology, as judged by serological methods and partial proteolysis with Staphylococcus aureus V8 protease. Additional noncapsid proteins with MrS of 25,000, 27,000, and 31,000 were also detected as translation products of these RNAs. All of the above species were immunoprecipitated by immunoglobulin G from a calf which was naturally infected with BPV. All four capsid proteins but only one of the lower-molecular-weight polypeptides were detected after the immunoprecipitation of BPV-infected cells. The results presented here indicate that the BPV genome codes for four capsid proteins and a noncapsid protein which may be structurally related to the capsid proteins.

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Selected References

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