Evidence map›Paper›PMID 8764071›Full record

ArticleJournal of virology1996

Recombinant human immunodeficiency virus type 1 genomes with tat unconstrained by overlapping reading frames reveal residues in Tat important for replication in tissue culture.

C Neuveut, K T Jeang

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.2field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 71 citations in OpenAlex.

  1. Review
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  8. Development of an Attenuated Tat Protein as a Highly-effective Agent to Specifically Activate HIV-1 Latency.Molecular therapy : the journal of the American Society of Gene Therapy · 2016
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  13. Review
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  19. Selective CXCR4 antagonism by Tat: implications for in vivo expansion of coreceptor use by HIV-1.Proceedings of the National Academy of Sciences of the United States of America · 2000
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

C NeuveutMolecular Virology Section, Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892-0460, USA.
K T Jeang
National Institute of Allergy and Infectious Diseases · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human immunodeficiency virus type 1 (HIV-1) Tat is essential for virus replication and is a potent trans activator of viral gene expression. Evidence suggests that Tat also influences virus infectivity and cytopathicity. Extensive structure-function studies of Tat in subgenomic settings with point mutagenesis and transient transfection readouts have been performed. These reporter assays have defined certain amino acid residues as being important for trans activation of reporter plasmids. However, they have not directly addressed functions related to virus replication. Here, we have studied Tat structure-function in the setting of replicating viruses. We characterized mutations that emerged in Tat during HIV-1 infections of T lymphocytes. To ensure that the selection pressure for change was directed toward protein function, we constructed HIV-Is in which the Tat reading frame was freed from constraints exerted by overlapping with the reading frames of vpr, rev, and env. When these recombinant viruses were passaged in T cells, 26 novel nucleotide changes in tat were observed from sequencing of 220 independently isolated clones. Recloning of these changes into a pNL4-3 molecular background allowed for the characterization of residues in Tat important for virus replication. Interestingly, many of the changes that affected replication when they were assayed in transient trans activation of plasmid reporters were found to be relatively neutral. We conclude that the structure-function of Tat in virus replication is incompletely reflected by activity measurements based only on subgenomic transient transfections.

Indexed as

Gene Expression Regulation, ViralGenes, tatGenome, ViralAmino Acid SequenceBase SequenceCulture TechniquesDNA, RecombinantDNA, ViralHIV-1HumansMolecular Sequence DataOpen Reading FramesTranscriptional ActivationVirus ReplicationDNA, RecombinantDNA, Viral

Identifiers

PMID8764071
PMCPMC190517
OpenAlexW2167742988

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.