Nuclear Factor 90(NF90) targeted to TAR RNA inhibits transcriptional activation of HIV-1
2007
NF90ctv Inhibits HIV-1 Transcription
publication
Evidence: moderate
Author Information
Author(s): Agbottah Emmanuel T, Traviss Christine, McArdle James, Karki Sambhav, St Laurent Georges C III, Kumar Ajit
Primary Institution: The George Washington University
Hypothesis
Can NF90ctv inhibit the transcriptional activation of HIV-1 by interfering with Tat/TAR interaction?
Conclusion
NF90ctv disrupts the Tat/TAR RNA interaction, leading to reduced transcriptional activation of HIV-1.
Supporting Evidence
- NF90ctv competes with Tat for TAR RNA binding, inhibiting HIV-1 transcription.
- Cells expressing NF90ctv showed significant inhibition of Tat-transactivation of HIV-1 LTR.
- NF90ctv alters histone methylation patterns in HIV chromatin, indicating epigenetic changes.
Takeaway
A protein called NF90ctv can stop HIV from making copies of itself by blocking a key interaction it needs to grow.
Methodology
The study used TAR affinity fractionation, North-Western blotting, and mobility-shift assays to analyze NF90ctv's effect on HIV-1 transcription.
Digital Object Identifier (DOI)
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