ArticleCommunications biology2024
Transactivation of the novel 5' cis-acting element of mouse mammary tumor virus (MMTV) by human retroviral transactivators Tat and Tax.
Article in Communications biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
- Beyond reverse transcription: molecular mechanisms and emerging paradigms in retroviral replication.FEMS microbiology reviews · 2026Review
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Authors and funding
8 authors.
Funding
Abstract
The mouse mammary tumor virus (MMTV) encodes a 5' element crucial for transcription of its genome along with the Rem/Rem-responsive element (RmRE) responsible for nuclear export of this unspliced RNA. Whether the 5' element is Rem-responsive or has any functional interaction with host/viral factors to facilitate MMTV gene expression was tested in this study. Our results reveal that the 5' element is non-responsive to Rem, but can be transactivated by both HIV Tat and HTLV-1 Tax activators. Reciprocally, MMTV could transactivate not only HIV TAR (similar to HTLV Tax), but also its 5' element. Furthermore, we reveal involvement of pTEFb, a general elongation factor associated with transactivation by Tat/Tax. This makes MMTV the first betaretrovirus to encode both Rem/RRE and Tat/TAR-Tax/TRE-like transcription regulatory systems. This study should enhance not only our understanding of retrovirus replication and virally-induced cancers/immunodeficiency syndromes, but also development of improved retroviral vectors for human gene therapy.
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Registered trials
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