Transport of African swine fever virus from assembly sites to the plasma membrane is dependent on microtubules and conventional kinesin

Jouvenet, Nolween, Monaghan, Paul, Way, Michael and Wileman, Thomas E. (2004) Transport of African swine fever virus from assembly sites to the plasma membrane is dependent on microtubules and conventional kinesin. Journal of Virology, 78 (15). pp. 7990-8001.

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Abstract

African swine fever virus (ASFV) is a large DNA virus that assembles in perinuclear viral factories located close to the microtubule organizing center. In this study, we have investigated the mechanism by which ASFV reaches the cell surface from the site of assembly. Immunofluorescence microscopy revealed that at 16 h postinfection, mature virions were aligned along microtubules. Furthermore, virus movement to the cell periphery was inhibited when microtubules were depolymerized by nocodazole. In addition, ASFV infection resulted in the increased acetylation of microtubules as well as their protection against depolymerization by nocodazole. Immunofluorescence microscopy showed that conventional kinesin was recruited to virus factories and to a large fraction of virus particles in the cytoplasm. Consistent with a role for conventional kinesin during ASFV egress to the cell periphery, overexpression of the cargo-binding domain of the kinesin light chain severely inhibited the movement of particles to the plasma membrane. Based on our observations, we propose that ASFV is recognized as cargo by conventional kinesin and uses this plus-end microtubule motor to move from perinuclear assembly sites to the plasma membrane.

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
UEA Research Groups: Faculty of Medicine and Health Sciences > Research Groups > Medicine (former - to 2013)
Faculty of Medicine and Health Sciences > Research Groups > Gastroenterology and Gut Biology
Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health
Depositing User: EPrints Services
Date Deposited: 25 Nov 2010 11:10
Last Modified: 19 Oct 2023 00:57
URI: https://ueaeprints.uea.ac.uk/id/eprint/12998
DOI: 10.1128/jvi.78.15.7990-8001.2004

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