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Genome-wide transcription program and expression of the Rta responsive gene of Epstein-Barr virus.

Abstract：

:Infection with Epstein-Barr virus (EBV) usually leads to a latent state in B lymphocytes. The virus can be reactivated through two viral transactivators, Zta and Rta, leading to a cascade of gene expression. An EBV DNA array was generated to analyze the pattern of transcription of the entire EBV genome under various conditions. Firstly, a complete set of temporal expression clusters of EBV genes was displayed by analyzing the array data of anti-IgG-induced Akata cells. In addition to assigning genes of unknown function to the various clusters, increasing expression of latent genes, including EBNA2, EBNA3A and EBNA 3C, was observed during virus replication. Secondly, gene expression independent of viral DNA replication was analyzed in PAA blocked Akata cells and in chemically induced Raji cells. Several genes with presumed late functions were found to be expressed with early kinetics and independent of viral DNA replication, suggesting possible novel functions for these genes. Finally, the EBV array was used to identify Rta responsive gene expression in Raji cells, and in the EBV-positive epithelial cells NA, using a Zta siRNA strategy. The array data were confirmed by Northern blotting, RT-PCR and reporter assays. All the information here thus provides a better understanding of the control of EBV lytic gene expression.

journal_name

Virology

journal_title

Virology

authors

Lu CC,Jeng YY,Tsai CH,Liu MY,Yeh SW,Hsu TY,Chen MR

doi

10.1016/j.virol.2005.09.064

subject

Has Abstract

pub_date

2006-02-20 00:00:00

pages

358-72

issue

2

eissn

0042-6822

issn

1096-0341

pii

S0042-6822(05)00637-9

journal_volume

345

pub_type

杂志文章

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