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J Vis Exp. 2014 May 15;(87). doi: 10.3791/51522.

Vaccinia reporter viruses for quantifying viral function at all stages of gene expression.

Author information

1
Department of Microbiology, Boston University School of Medicine.
2
Department of Microbiology, Boston University School of Medicine; jhconnor@bu.edu.

Abstract

Poxviruses are a family of double stranded DNA viruses that include active human pathogens such as monkeypox, molluscum contagiousum, and Contagalo virus. The family also includes the smallpox virus, Variola. Due to the complexity of poxvirus replication, many questions still remain regarding their gene expression strategy. In this article we describe the conceptualization and usage of recombinant vaccinia viruses that enable real-time measurement of single and multiple stages of viral gene expression in a high-throughput format. This is enabled through the use of spectrally distinct fluorescent proteins as reporters for each of three stages of viral replication. These viruses provide a high signal-to-noise ratio while retaining stage specific expression patterns, enabling plate-based assays and microscopic observations of virus propagation and replication. These tools have uses for antiviral discovery, studies of the virus-host interaction, and evolutionary biology.

PMID:
24894622
PMCID:
PMC4188345
DOI:
10.3791/51522
[Indexed for MEDLINE]
Free PMC Article
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