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Curr Opin Virol. 2018 Jul 24;33:42-46. doi: 10.1016/j.coviro.2018.07.002. [Epub ahead of print]
The parts are greater than the whole: the role of semi-infectious particles in influenza A virus biology.
Diefenbacher M1, Sun J1, Brooke CB2.
Author information
Abstract
The influenza A virus (IAV) genome is incorporated into newly produced virions through a tightly orchestrated process that is one of the best studied examples of genome packaging by a segmented virus. Despite the remarkable selectivity and efficiency of this process, it is clear that the vast majority of IAV virions are unable to express the full set of essential viral gene products and are thus incapable of productive replication in the absence of complementation. Here, we attempt to reconcile the widespread production of these semi-infectious particles (SIPs) with the high efficiency and selectivity of IAV genome packaging. We also cover what is known and what remains unknown about the consequences of SIP production for the replication and evolution of viral populations.
PMID: 30053722 DOI: 10.1016/j.coviro.2018.07.002
The parts are greater than the whole: the role of semi-infectious particles in influenza A virus biology.
Diefenbacher M1, Sun J1, Brooke CB2.
Author information
Abstract
The influenza A virus (IAV) genome is incorporated into newly produced virions through a tightly orchestrated process that is one of the best studied examples of genome packaging by a segmented virus. Despite the remarkable selectivity and efficiency of this process, it is clear that the vast majority of IAV virions are unable to express the full set of essential viral gene products and are thus incapable of productive replication in the absence of complementation. Here, we attempt to reconcile the widespread production of these semi-infectious particles (SIPs) with the high efficiency and selectivity of IAV genome packaging. We also cover what is known and what remains unknown about the consequences of SIP production for the replication and evolution of viral populations.
PMID: 30053722 DOI: 10.1016/j.coviro.2018.07.002