Evidence map›Paper›PMID 7884856›Full record

ArticleJournal of virology1995

RNA secondary structure and binding sites for gag gene products in the 5' packaging signal of human immunodeficiency virus type 1.

J Clever, C Sassetti, T G Parslow

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 156 papers.

0numbers the graph read from it
0cells of the map it votes in
156citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

156 citing papers in PubMed, 299 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Sequestering the 5'-cap for viral RNA packaging.BioEssays : news and reviews in molecular, cellular and developmental biology · 2022
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Selective packaging of HIV-1 RNA genome is guided by the stability of 5' untranslated region polyA stem.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Focus on Translation Initiation of the HIV-1 mRNAs.International journal of molecular sciences · 2018
    Review
  20. Article

96 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

J CleverDepartment of Pathology, University of California, San Francisco 94143-0506.
C Sassetti
T G Parslow
University of California, San Francisco · US

Funding

FUNCTION AND INHIBITION OF THE REV GENE PRODUCT OF HIVR01AI029313 · NIAID · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI PARSLOW, TRISTRAM G. · 1990 to 1996
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CONTROL OF T4 AND T8 GENE EXPRESSION IN T LYMPHOCYTESR01GM037036 · NIGMS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI PARSLOW, TRISTRAM G. · 1986 to 1988
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NIAID NIH HHS AI07395NIAID NIH HHS AI29313NIGMS NIH HHS GM37036
6 · The paper itself

Abstract

The selective encapsidation of retroviral RNA requires sequences in the Gag protein, as well as a cis-acting RNA packaging signal (psi site) near the 5' end of the genomic transcript. Gag protein of human immunodeficiency virus type 1 (HIV-1) has recently been found to bind specifically to the HIV-1 psi element in vitro. Here we report studies aimed at mapping features within the genetically defined psi locus that are required for binding of HIV-1 Gag or of its processed nucleocapsid derivative. The full-length HIV-1 Gag (p55) and nucleocapsid (p15) sequences were expressed as glutathione S-transferase (GST) fusion proteins in Escherichia coli. In a gel shift assay containing excess competitor tRNA, affinity-purified GST-p15 and GST-p55 proteins bound to a 206-nucleotide psi RNA element spanning the major splice donor and gag start codons but did not bind to antisense psi transcripts. Quantitative filter-binding assays revealed that both GST-p55 and GST-p15 bound to this RNA sequence with identical affinities (apparent Kd congruent to 5 x 10(-8) M), indicating that all major determinants of psi binding affinity reside within the nucleocapsid portion of Gag. Chemical and RNase accessibility mapping, coupled with computerized sequence analysis, suggested a model for psi RNA structure comprising four independent stem-loops. Filter-binding studies revealed that RNAs corresponding to three of these hypothetical stem-loops can each function as a independent Gag binding site and that each is bound with approximately fourfold-lower apparent affinity than the full-length psi locus. Interaction of Gag with these regions is likely to play a major role in directing HIV-1 RNA encapsidation in vivo.

Indexed as

Nucleic Acid ConformationBase SequenceDNA PrimersGene Products, gagHIV-1Molecular Sequence DataProtein BindingRNA, ViralDNA PrimersGene Products, gagRNA, Viral

Identifiers

PMID7884856
PMCPMC188876
OpenAlexW2122273986

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.