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Genome Biology volume 3, Article number: spotlight-20020306-01 (2002)
The IE86 protein of human cytomegalovirus is an 'immediate early' viral protein that drives cells into S phase, but blocks cell division. In the March 5 Proceedings of the National Academy of Sciences, Song and Stinski describe a microarray analysis of the effects of IE86 expression on the human transcriptome (Proc Natl Acad Sci USA 2002, 99:2836-2841). They infected human foreskin fibroblast cells with a replication-defective adenovirus encoding the IE86 protein, then isolated cellular RNA and hybridized it to oligonucleotide arrays containing about 12,000 human genes. Of these, 64 were activated more than four-fold by IE86 expression; half of these are implicated in cell proliferation and DNA replication. A number of the IE86-induced genes are known targets of the cell-cycle regulator E2F; it remains to be established how IE86-induced genes block cell cycle progression.
The human cytomegalovirus IE86 protein can block cell cycle progression after inducing transition into the S phase of permissive cells.
Proceedings of the National Academy of Sciences , [http://www.pnas.org]
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Weitzman, J.B. Cytomegalovirus control. Genome Biol 3, spotlight-20020306-01 (2002) doi:10.1186/gb-spotlight-20020306-01
- Microarray Analysis
- Cycle Progression
- Cell Cycle Progression
- Viral Protein
- Human Gene