Journal
JOURNAL OF VIROLOGY
Volume 85, Issue 12, Pages 6049-6054Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.02514-10
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Funding
- NIH [RO1-AI51463, P20 RR015587]
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Human cytomegalovirus (HCMV) selectively relocalizes many DNA repair proteins, thereby avoiding a potentially detrimental damage response. In the present study, we evaluated interactions between HCMV and the homology-directed repair (HDR) pathway. In permissive human foreskin fibroblasts, a fluorescence-based double-stranded break repair assay was used to determine that HCMV stimulated HDR. Repair of both stably integrated and extrachromosomal reporter substrates was observed to increase. HDR was also stimulated through individual expression of the viral immediate-early protein IE1-72, mimicking full virus infection. These experiments further demonstrate HCMV's role in modulating critical cellular processes during a permissive infection.
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