Evidence map›Paper›PMID 11773377›Full record

ArticleJournal of virology2002

The late-domain-containing protein p6 is the predominant phosphoprotein of human immunodeficiency virus type 1 particles.

Barbara Müller, Tilo Patschinsky, Hans-Georg Kräusslich

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.8field-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

29 citing papers in PubMed, 57 citations in OpenAlex.

  1. Trial
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  9. HIV-1Viruses · 2021
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  20. Protein intrinsic disorder as a flexible armor and a weapon of HIV-1.Cellular and molecular life sciences : CMLS · 2012
    Review
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 2 institutions in 1 country.

Barbara MüllerAbteilung Virologie, Universitätsklinikum Heidelberg, D-69120 Heidelberg, Germany. Barbara.Mueller@med.uni-heidelberg.de
Tilo Patschinsky
Hans-Georg Kräusslich
University Hospital Heidelberg · DELeibniz Institute of Virology (LIV) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Gag-derived protein p6 of human immunodeficiency virus type 1 (HIV-1) plays a crucial role in the release of virions from the membranes of infected cells. It is presumed that p6 and functionally related proteins from other viruses act as adapters, recruiting cellular factors to the budding site. This interaction is mediated by so-called late domains within the viral proteins. Previous studies had suggested that virus release from the plasma membrane shares elements with the cellular endocytosis machinery. Since protein phosphorylation is known to be a regulatory mechanism in these processes, we have investigated the phosphorylation of HIV-1 structural proteins. Here we show that p6 is the major phosphoprotein of HIV-1 particles. After metabolic labeling of infected cells with [ortho-32P]phosphate, we found that phosphorylated p6 from infected cells and from virus particles consisted of several forms, suggesting differential phosphorylation at multiple sites. Apparently, phosphorylation occurred shortly before or after the release of p6 from Gag and involved only a minor fraction of the total virion-associated p6 molecules. Phosphoamino acid analysis indicated phosphorylation at Ser and Thr, as well as a trace of Tyr phosphorylation, supporting the conclusion that multiple phosphorylation events do occur. In vitro experiments using purified virus revealed that endogenous or exogenously added p6 was efficiently phosphorylated by virion-associated cellular kinase(s). Inhibition experiments suggested that a cyclin-dependent kinase or a related kinase, most likely ERK2, was involved in p6 phosphorylation by virion-associated enzymes.

Indexed as

Cell LineCyclin-Dependent KinasesEndopeptidasesEnzyme Inhibitorsgag Gene Products, Human Immunodeficiency VirusGene Products, gagGenisteinHIV-1HumansKinetinMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Mitogen-Activated Protein KinasesPhosphoproteinsPhosphorylationProtein Processing, Post-TranslationalCyclin-Dependent KinasesEndopeptidasesEnzyme Inhibitorsgag Gene Products, Human Immunodeficiency VirusGene Products, gagGenisteinKinetinMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Mitogen-Activated Protein Kinasesolomoucinep6 gag protein, Human immunodeficiency virus 1PhosphoproteinsProtein-Tyrosine KinasesPurinesSerineThreonineTyrosine

Identifiers

PMID11773377
PMCPMC135845
OpenAlexW2084607977

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.