Evidence map›Paper›PMID 18817521›Full record

ArticleTraffic (Copenhagen, Denmark)2008

Functional replacement of a retroviral late domain by ubiquitin fusion.

Anjali Joshi, Utpal Munshi, Sherimay D Ablan, Kunio Nagashima, Eric O Freed

Open access · greenAbstract read
In one paragraph

Article in Traffic (Copenhagen, Denmark), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

54 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. Article
  8. Review
  9. Emerging Mechanisms of Endocytosis inLife (Basel, Switzerland) · 2021
    Review
  10. Article
  11. Article
  12. Cloaked Viruses and Viral Factors in Cutting Edge Exosome-Based Therapies.Frontiers in cell and developmental biology · 2020
    Review
  13. Article
  14. Article
  15. HIV-1 packs in PACSIN2 for cell-to-cell spread.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  16. HIV-1 gag recruits PACSIN2 to promote virus spreading.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  17. Article
  18. ESCRT-dependent cargo sorting at multivesicular endosomes.Seminars in cell & developmental biology · 2018
    Review
  19. Article
  20. Article
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 at 3 institutions in 1 country.

Anjali JoshiVirus-Cell Interaction Section, HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702-1201, USA.
Utpal Munshi
Sherimay D Ablan
Kunio Nagashima
Eric O Freed
National Institutes of Health · USNational Cancer Institute · USScience Applications International Corporation (United States) · US

Funding

Retrovirus Budding and Endosomal SortingZIABC010776 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI FREED, ERIC · 2009 to 2015
$3.5M
Retrovirus Budding and Endosomal SortingZ01BC010776 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI FREED, ERIC · 2007 to 2008
$899k
Intramural NIH HHS Z01 BC010776NCI NIH HHS N01 CO012400NCI NIH HHS N01-CO-12400
6 · The paper itself

Abstract

Retroviral Gag polyprotein precursors are both necessary and sufficient for the assembly and release of virus-like particles (VLPs) from infected cells. It is well established that small Gag-encoded motifs, known as late domains, promote particle release by interacting with components of the cellular endosomal sorting and ubiquitination machinery. The Gag proteins of a number of different retroviruses are ubiquitinated; however, the role of Gag ubiquitination in particle egress remains undefined. In this study, we investigated this question by using a panel of equine infectious anemia virus (EIAV) Gag derivatives bearing the wild-type EIAV late domain, heterologous retroviral late domains or no late domain. Ubiquitin was fused in cis to the C-termini of these Gag polyproteins, and the effects on VLP budding were measured. Remarkably, fusion of ubiquitin to EIAV Gag lacking a late domain (EIAV/DeltaYPDL-Ub) largely rescued VLP release. We also determined the effects of ubiquitin fusion on the sensitivity of particle release to budding inhibitors and to depletion of key endosomal sorting factors. Ubiquitin fusion rendered EIAV/DeltaYPDL-Ub sensitive to depletion of cellular endosomal sorting factors Tsg101 and Alix and to overexpression of dominant-negative fragments of Tsg101 and Alix. These findings demonstrate that ubiquitin can functionally compensate for the absence of a retroviral late domain and provide insights into the host-cell machinery engaged by ubiquitin during particle egress.

Indexed as

Cysteine Proteinase InhibitorsGene Products, gagInfectious Anemia Virus, EquineProteasome InhibitorsUbiquitinCysteine Proteinase InhibitorsGene Products, gagProteasome InhibitorsUbiquitin

Identifiers

PMID18817521
PMCPMC2763539
OpenAlexW2000965308

What OpenQuestion holds

Textmetadata
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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.