Viruses Are Sneakier Than We Thought

Of central importance for viruses is the ability to commandeer cellular gene expression machinery. Several human herpes viruses put the breaks on normal cellular gene expression to divert the associated enzymes and resources towards their own viral genes. Kaposi's sarcoma-associated herpes virus, which causes several AIDS-associated cancers, has now been shown to do this in an unexpected way, using a process that is normally protective, called polyadenylation.

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