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J Cell Biol. 1997 Mar 10;136(5):1007-21.

Microtubule-mediated transport of incoming herpes simplex virus 1 capsids to the nucleus.

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Yale University School of Medicine, Department of Cell Biology, New Haven, Connecticut 06520-8002, USA.


Herpes simplex virus 1 fuses with the plasma membrane of a host cell, and the incoming capsids are efficiently and rapidly transported across the cytosol to the nuclear pore complexes, where the viral DNA genomes are released into the nucleoplasm. Using biochemical assays, immunofluorescence, and immunoelectron microscopy in the presence and absence of microtubule depolymerizing agents, it was shown that the cytosolic capsid transport in Vero cells was mediated by microtubules. Antibody labeling revealed the attachment of dynein, a minus end-directed, microtubule-dependent motor, to the viral capsids. We propose that the incoming capsids bind to microtubules and use dynein to propel them from the cell periphery to the nucleus.

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