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Part of the C-terminal tall of the envelope gp41 transmembrane glycoprotein of human immunodeficiency virus type 1 is exposed on the surface of infected cells and is involved in virus-mediated cell fusion
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UNSPECIFIED (2005) Part of the C-terminal tall of the envelope gp41 transmembrane glycoprotein of human immunodeficiency virus type 1 is exposed on the surface of infected cells and is involved in virus-mediated cell fusion. JOURNAL OF GENERAL VIROLOGY, 86 (Part 1). pp. 131-138. doi:10.1099/vir.0.80439-0
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Official URL: http://dx.doi.org/10.1099/vir.0.80439-0
Abstract
The C-terminal tail of the gp41 transmembrane glycoprotein of the human immunodeficiency virus type 1 (HIV-1) virion is usually thought to be inside the virion, but it has been shown recently that part of the tail is exposed on the virion exterior. Here, using a panel of antibodies, it was demonstrated that the same part of the tail is exposed on the surface of HIV-1-infected C8166 lymphoblastoid cells and HeLa cells infected with a gp41-expressing vaccinia. virus recombinant. Both types of infected cell failed to react with p117 matrix protein-specific IgGs until permeabilized with saponin, confirming the integrity of the plasma membrane. Cell-surface exposure of the gp41 tail was independently demonstrated by inhibition of HIV-1-mediated cell-cell fusion by one of the gp41 tail-specific antibodies. These data also implicate the exposed region of the gp41 C-terminal tail either directly or indirectly in the viral fusion process. Its surface exposure suggests that the gp41 C-terminal tail may be a candidate for immune intervention or chemotherapy of infection.
| Item Type: | Journal Article | ||||
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| Subjects: | T Technology > TP Chemical technology Q Science > QR Microbiology > QR355 Virology |
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| Journal or Publication Title: | JOURNAL OF GENERAL VIROLOGY | ||||
| Publisher: | SOC GENERAL MICROBIOLOGY | ||||
| ISSN: | 0022-1317 | ||||
| Official Date: | January 2005 | ||||
| Dates: |
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| Volume: | 86 | ||||
| Number: | Part 1 | ||||
| Number of Pages: | 8 | ||||
| Page Range: | pp. 131-138 | ||||
| DOI: | 10.1099/vir.0.80439-0 | ||||
| Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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