Occupancy of chromatin organizers in the Epstein-Barr virus genome.

Occupancy of chromatin organizers in the Epstein-Barr virus genome.
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DOI:
10.1016/j.virol.2011.04.004
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发表时间:
2011-06-20
期刊:
影响因子:
3.7
通讯作者:
Miranda JJ
Miranda JJ
中科院分区:
医学3区
文献类型:
--
作者:
Holdorf MM;Cooper SB;Yamamoto KR;Miranda JJ

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The human CCCTC-binding factor, CTCF, regulates transcription of the double-stranded DNA genomes of herpesviruses. The architectural complex cohesin and RNA Polymerase II also contribute to this organization. We profiled the occupancy of CTCF, cohesin, and RNA Polymerase on the episomal genome of the Epstein-Barr virus in a cell culture model of latent infection. CTCF colocalizes with cohesin but not RNA Polymerase. CTCF and cohesin bind specific sequences throughout the genome that are found not just proximal to the regulatory elements of latent genes, but also near lytic genes. In addition to tracking with known transcripts, RNA Polymerase appears at two unannotated positions, one of which lies within the latent origin of replication. The widespread occupancy profile of each protein reveals binding near or at a myriad of regulatory elements and suggests context-dependent functions.
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