Evidence map›Paper›PMID 18667500›Full record

ArticleJournal of virology2008

Mutations in human immunodeficiency virus type 1 nucleocapsid protein zinc fingers cause premature reverse transcription.

James A Thomas, William J Bosche, Teresa L Shatzer, Donald G Johnson, Robert J Gorelick

Abstract read
In one paragraph

Article in Journal of virology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. HIV Genome-Wide Protein Associations: a Review of 30 Years of Research.Microbiology and molecular biology reviews : MMBR · 2016
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
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  7. Review
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  9. Article
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  11. Article
  12. HIV-1 reverse transcription.Cold Spring Harbor perspectives in medicine · 2012
    Review
  13. Article
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  15. 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

5 authors.

James A ThomasAIDS and Cancer Virus Program, SAIC Frederick, Inc., NCI-Frederick, P.O. Box B, Frederick, MD 21702-1201, USA.
William J Bosche
Teresa L Shatzer
Donald G Johnson
Robert J Gorelick

Funding

NCI NIH HHS N01 CO012400NCI NIH HHS N01-CO-12400
6 · The paper itself

Abstract

Human immunodeficiency virus type 1 (HIV-1) requires that its genome be reverse transcribed into double-stranded DNA for productive infection of cells. This process requires not only reverse transcriptase but also the nucleocapsid protein (NC), which functions as a nucleic acid chaperone. Reverse transcription generally begins once the core of the virion enters the cytoplasm of a newly infected cell. However, some groups have reported the presence of low levels of viral DNA (vDNA) within particles prior to infection, the significance and function of which is controversial. We report here that several HIV-1 NC mutants, which we previously identified as being replication defective, contain abnormally high levels of intravirion DNA. These findings were further reinforced by the inability of these NC mutants to perform endogenous reverse transcription (ERT), in contrast to the readily measurable ERT activity in wild-type HIV-1. When either of the NC mutations is combined with a mutation that inactivates the viral protease, we observed a significant reduction in the amount of intravirion DNA. Interestingly, we also observed high levels of intravirion DNA in the context of wild-type NC when we delayed budding by means of a PTAP((-)) (Pro-Thr-Ala-Pro) mutation. Premature reverse transcription is most probably occurring before these mutant virions bud from producer cells, but we fail to see any evidence that the NC mutations alter the timing of Pr55(Gag) processing. Critically, our results also suggest that the presence of intravirion vDNA could serve as a diagnostic for identifying replication-defective HIV-1.

Indexed as

Reverse TranscriptionTranscription, GeneticZinc FingersBinding SitesCell LineCytoplasmDNA, ViralHeLa CellsHIV-1HumansMutationNucleocapsid ProteinsRibonuclease HRNA-Directed DNA PolymeraseVirionDNA, ViralNucleocapsid ProteinsRibonuclease HRNA-Directed DNA Polymerase

Identifiers

PMID18667500
PMCPMC2546943

What OpenQuestion holds

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Registered trials

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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.