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Cell. 1986 Mar 28;44(6):941-7.

The trans-activator gene of the human T cell lymphotropic virus type III is required for replication.

Abstract

The trans-activator gene (tat-III) of the human T lymphotropic virus type III (HTLV-III/LAV) is shown to regulate positively the expression of viral proteins. Viruses in which the tat-III gene is deleted are incapable of prolific replication and do not demonstrate cytopathic effects in T4+ cell lines. These defects can be fully complemented in cell lines that constitutively express the tat-III gene product. We conclude that the tat-III gene product is required for efficient replication of HTLV-III in T4+ cells, and for that reason is important for the cytopathic effects of virus infection. These observations predict that inhibitors of the tat-III gene product may constitute effective therapeutic agents.

PMID:
2420471
DOI:
10.1016/0092-8674(86)90017-6
[Indexed for MEDLINE]

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