Evidence map›Paper›PMID 15363109›Full record

ArticleRetrovirology2004

Identification of the 15FRFG domain in HIV-1 Gag p6 essential for Vpr packaging into the virion.

Henghu Zhu, Heng Jian, Ling-Jun Zhao

Abstract read
In one paragraph

Article in Retrovirology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 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
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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

3 authors.

Henghu ZhuInstitute for Molecular Virology, St. Louis University School of Medicine, St. Louis, USA. henghu_zhu@yahoo.com
Heng Jian
Ling-Jun Zhao

Funding

VPR-INDUCED ENDOTHELIAL CYTOSKELETAL/FUNCTIONAL CHANGESR01HL061952 · NHLBI · SAINT LOUIS UNIVERSITY · PI ZHAO, LING-JUN · 1998 to 2002
$555k
NHLBI NIH HHS HL61952
6 · The paper itself

Abstract

The auxiliary regulatory protein Vpr of HIV-1 is packaged in the virion through interaction with the Gag C-terminal p6 domain. Virion packaging of Vpr is critical for Vpr to exert functions in the HIV-1 life cycle. Previous studies suggest that Vpr interacts with a (Lxx)4 domain in p6 for virion packaging. In the present study, mutational analysis of HIV-1 Gag p6 domain was performed in the context of the HIV-1 genome to examine the effect on virion packaging of Vpr. Surprisingly, Ala substitutions for Leu44 and Phe45 in the (Lxx)4 domain or deletion of the whole (Lxx)4 domain (amino acid #35-52 of the Gag p6 domain) did not affect Vpr virion packaging. Vpr virion packaging was normal when amino acid #1-23 of the Gag p6 domain was preserved. Most importantly, Ala substitutions for Phe15, Arg16 and Phe17 in the context of amino acid #1-23 of the Gag p6 domain abolished Vpr virion packaging. Single Ala substitutions for Phe15 and Phe17 also abolished Vpr virion packaging, whereas Ala substitution for Arg16 had no effect. Our studies have revealed a novel signal sequence for Vpr packaging into the HIV-1 virion. The 15FRFG domain in p6 resembles the FxFG repeat sequences commonly found in proteins of the nuclear pore complex. These results have provided novel insights into the process of virion packaging of Vpr and suggest for the first time that Vpr may recognize the FxFG domain for both virion packaging and association with nuclear pores.

Indexed as

AlanineAmino Acid SubstitutionGene Products, gagGene Products, vprGenome, ViralHIV-1OligopeptidesVirionvpr Gene Products, Human Immunodeficiency VirusAlanineGene Products, gagGene Products, vprOligopeptidesphenylalanyl-arginyl-phenylalaninevpr Gene Products, Human Immunodeficiency Virus

Identifiers

PMID15363109
PMCPMC521086

What OpenQuestion holds

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LicenceCC BY
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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.