The Nuclear Pore Complex is a Key Target of Viral Proteases to Promote Viral Replication
2021
Luis Adrián De Jesús-González | Selvin Palacios-Rápalo | José Manuel Reyes-Ruiz | Juan Fidel Osuna-Ramos | Carlos Daniel Cordero-Rivera | Carlos Noé Farfan-Morales | Ana Lorena Gutiérrez-Escolano | Rosa María del Ángel
Various viruses alter nuclear pore complex (NPC) integrity to access the nuclear content favoring their replication. Alteration of the nuclear pore complex has been observed not only in viruses that replicate in the nucleus but also in viruses with a cytoplasmic replicative cycle. In this last case, the alteration of the NPC can reduce the transport of transcription factors involved in the immune response or mRNA maturation, or inhibit the transport of mRNA from the nucleus to the cytoplasm, favoring the translation of viral mRNAs or allowing access to nuclear factors necessary for viral replication. In most cases, the alteration of the NPC is mediated by viral proteins, being the viral proteases, one of the most critical groups of viral proteins that regulate these nucleus–cytoplasmic transport changes. This review focuses on the description and discussion of the role of viral proteases in the modification of nucleus–cytoplasmic transport in viruses with cytoplasmic replicative cycles and its repercussions in viral replication.
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