Viruses Challenge Selectivity Barrier of Nuclear Pores

Exchange between the nucleus and the cytoplasm occurs through nuclear pore complexes (NPCs) embedded in the double membrane of the nuclear envelope. NPC permeability barrier restricts the entry of inert molecules larger than 5 nm in diameter but allows facilitated entry of selected cargos, whose siz...

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Main Authors: Ariberto Fassati, Aksana A. Labokha
Format: Article
Language:English
Published: MDPI AG 2013-09-01
Series:Viruses
Subjects:
Online Access:http://www.mdpi.com/1999-4915/5/10/2410
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author Ariberto Fassati
Aksana A. Labokha
author_facet Ariberto Fassati
Aksana A. Labokha
author_sort Ariberto Fassati
collection DOAJ
description Exchange between the nucleus and the cytoplasm occurs through nuclear pore complexes (NPCs) embedded in the double membrane of the nuclear envelope. NPC permeability barrier restricts the entry of inert molecules larger than 5 nm in diameter but allows facilitated entry of selected cargos, whose size can reach up to 39 nm. The translocation of large molecules is facilitated by nuclear transport receptors (NTRs) that have affinity to proteins of NPC permeability barrier. Viruses that enter the nucleus replicate evolved strategies to overcome this barrier. In this review, we will discuss the functional principles of NPC barrier and nuclear transport machinery, as well as the various strategies viruses use to cross the selective barrier of NPCs.
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spelling doaj.art-550d4d2f0f41486ba2770d7ee19378cc2022-12-22T00:32:55ZengMDPI AGViruses1999-49152013-09-015102410242310.3390/v5102410Viruses Challenge Selectivity Barrier of Nuclear PoresAriberto FassatiAksana A. LabokhaExchange between the nucleus and the cytoplasm occurs through nuclear pore complexes (NPCs) embedded in the double membrane of the nuclear envelope. NPC permeability barrier restricts the entry of inert molecules larger than 5 nm in diameter but allows facilitated entry of selected cargos, whose size can reach up to 39 nm. The translocation of large molecules is facilitated by nuclear transport receptors (NTRs) that have affinity to proteins of NPC permeability barrier. Viruses that enter the nucleus replicate evolved strategies to overcome this barrier. In this review, we will discuss the functional principles of NPC barrier and nuclear transport machinery, as well as the various strategies viruses use to cross the selective barrier of NPCs.http://www.mdpi.com/1999-4915/5/10/2410NPCimportinexportinnucleoporinFG hydrogelviral capsid
spellingShingle Ariberto Fassati
Aksana A. Labokha
Viruses Challenge Selectivity Barrier of Nuclear Pores
Viruses
NPC
importin
exportin
nucleoporin
FG hydrogel
viral capsid
title Viruses Challenge Selectivity Barrier of Nuclear Pores
title_full Viruses Challenge Selectivity Barrier of Nuclear Pores
title_fullStr Viruses Challenge Selectivity Barrier of Nuclear Pores
title_full_unstemmed Viruses Challenge Selectivity Barrier of Nuclear Pores
title_short Viruses Challenge Selectivity Barrier of Nuclear Pores
title_sort viruses challenge selectivity barrier of nuclear pores
topic NPC
importin
exportin
nucleoporin
FG hydrogel
viral capsid
url http://www.mdpi.com/1999-4915/5/10/2410
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