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Retroviral integration site selection: a running ?
Idioma
EN
Article de revue
Este ítem está publicado en
Microbial Cell. 2018-11-19, vol. 5, n° 12, p. 569-571
Resumen en inglés
The ability of retroviruses to integrate their genomes into host chromatin is a key step for the completion of their replication cycle. Selection of a suitable chromosomal integration site has been described as a hierarchical ...Leer más >
The ability of retroviruses to integrate their genomes into host chromatin is a key step for the completion of their replication cycle. Selection of a suitable chromosomal integration site has been described as a hierarchical mechanism involving both cellular and viral proteins but the exact molecular determinants are still unclear. We recently showed that the spumaretrovirus prototype foamy virus (PFV) Gag protein is acting as a chromatin tether by interacting with the nucleosome acidic patch (Lesbats et al. 114(21)). Disruption of the nucleosome binding leads to a dramatic delocalization of both the viral particles and the integration sites accompanied with a reduction of integrated genes expression. These data show for the first time a direct interaction between retroviral structural proteins with the host chromosomes, and highlight their importance in the integration sites selection.< Leer menos
Palabras clave en inglés
retrovirus
integration
nucleosome
chromatin-binding
Gag
Centros de investigación