Varicella-Zoster Virus ORF4 Latency-Associated Protein Is Important for Establishment of Latency

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Varicella-zoster virus ORF4 latency-associated protein is important for establishment of latency.

Varicella-zoster virus (VZV) encodes at least six genes that are expressed during latency. One of the genes, ORF4, encodes an immediate-early protein that is present in the virion tegument. ORF4 RNA and protein have been detected in latently infected human ganglia. We have constructed a VZV mutant deleted for ORF4 and have shown that the gene is essential for replication in vitro. The ORF4 muta...

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The varicella-zoster virus open reading frame 63 latency-associated protein is critical for establishment of latency.

Varicella-zoster virus (VZV) expresses at least six viral transcripts during latency. One of these transcripts, derived from open reading frame 63 (ORF63), is one of the most abundant viral RNAs expressed during latency. The VZV ORF63 protein has been detected in human and experimentally infected rodent ganglia by several laboratories. We have deleted >90% of both copies of the ORF63 gene from ...

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Regions of the varicella-zoster virus open reading frame 63 latency-associated protein important for replication in vitro are also critical for efficient establishment of latency.

Varicella-zoster virus (VZV) open reading frame 63 (ORF63) is one of the most abundant transcripts expressed during VZV latency in humans, and ORF63 protein has been detected in human ganglia by several laboratories. Deletion of over 90% of the ORF63 gene showed that the protein is required for efficient establishment of latency in rodents. We have constructed viruses with a series of mutations...

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Key issues in varicella-zoster virus latency.

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Varicella-zoster virus open reading frame 21, which is expressed during latency, is essential for virus replication but dispensable for establishment of latency.

Varicella-zoster virus (VZV) open reading frame 21 (ORF21) is one of at least five VZV genes expressed in latently infected human and rodent ganglia. To determine whether ORF21 is required for latent and lytic infection, we deleted 99% of ORF21 from the viral genome. The ORF21 deletion mutant virus could be propagated only in a cell line expressing the ORF21 protein. Insertion of the herpes sim...

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ژورنال

عنوان ژورنال: Journal of Virology

سال: 2005

ISSN: 0022-538X,1098-5514

DOI: 10.1128/jvi.79.11.6969-6975.2005