The C-terminal proline-rich tail of human immunodeficiency virus type 2 Vpx is necessary for nuclear localization of the viral preintegration complex in nondividing cells.

Abstract:

:Human immunodeficiency virus type 2 (HIV-2), like other lentiviruses, is capable of infecting nondividing T cells and macrophages. The present work shows that in HIV-2-infected cells, Vpx is necessary for efficient nuclear import of the preintegration complex. In agreement with this finding, the subcellular localization of a GFP-Vpx fusion protein was found to be predominantly nuclear. However, deletion of the proline-rich C-terminal 11 residues of Vpx resulted in a shift of the fusion protein to the cytoplasm. Furthermore, the same deletion in the context of the provirus resulted in a decrease in nuclear import of the preintegration complex and attenuated replication in macrophages.

journal_name

J Virol

journal_title

Journal of virology

authors

Pancio HA,Vander Heyden N,Ratner L

doi

10.1128/jvi.74.13.6162-6167.2000

subject

Has Abstract

pub_date

2000-07-01 00:00:00

pages

6162-7

issue

13

eissn

0022-538X

issn

1098-5514

journal_volume

74

pub_type

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