Evidence map›Paper›PMID 20622010›Full record

ArticleThe Journal of biological chemistry2010

HIV-1 Nef binds a subpopulation of MHC-I throughout its trafficking itinerary and down-regulates MHC-I by perturbing both anterograde and retrograde trafficking.

Ling Yi, Tilman Rosales, Jeremy J Rose, Bhabadeb Chowdhury, Bhabhadeb Chaudhury, Jay R Knutson, Sundararajan Venkatesan

Erratum issuedAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–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

20 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Immune regulation and evasion of Mammalian host cell immunity during viral infection.Indian journal of virology : an official organ of Indian Virological Society · 2013
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Mechanisms of HIV-1 Nef function and intracellular signaling.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2011
    Review
  18. Article
  19. EfficientMolecules (Basel, Switzerland) · 2011
    Article
  20. Review
4 · The record

Corrections and comments

  • Erratum issued
    Chaudhury, Bhabhadeb [corrected to Chowdhury, Bhabadeb]
5 · Who and what money

Authors and funding

7 authors.

Ling YiMolecular and Cell Biology Unit, Laboratory of Molecular Immunology, NIAID, Laboratory of Molecular Biophysics, NHLBI, National Institutes of Health, Bethesda, Maryland 20892, USA.
Tilman Rosales
Jeremy J Rose
Bhabadeb Chowdhury
Bhabhadeb Chaudhury
Jay R Knutson
Sundararajan Venkatesan

Funding

Multiphoton Microscopy DevelopmentZIAHL006065 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI KNUTSON, JAY R · 2010 to 2025
$11.4M
Optical Superresolution Microscopy (Nanoscopy)ZIAHL006066 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI KNUTSON, JAY R · 2010 to 2025
$5.3M
Time Resolved Fluorescence SpectroscopyZIAHL001452 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI KNUTSON, JAY R · 2009 to 2025
$5.1M
Immune Evasion Mechanisms of HIVZIAAI000528 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI VENKATESAN, SUNDARARAJAN · 2009 to 2011
$1.6M
Intramural NIH HHS
6 · The paper itself

Abstract

The HIV protein Nef is thought to mediate immune evasion and promote viral persistence in part by down-regulating major histocompatibility complex class I protein (MHC-I or HLA-I) from the cell surface. Two different models have been proposed to explain this phenomenon as follows: 1) stimulation of MHC-I retrograde trafficking from and aberrant recycling to the plasma membrane, and 2) inhibition of anterograde trafficking of newly synthesized HLA-I from the endoplasmic reticulum to the plasma membrane. We show here that Nef simultaneously uses both mechanisms to down-regulate HLA-I in peripheral blood mononuclear cells or HeLa cells. Consistent with this, we found by using fluorescence correlation spectroscopy that a third of diffusing HLA-I at the endoplasmic reticulum, Golgi/trans-Golgi network, and the plasma membrane (PM) was associated with Nef. The binding of Nef was similarly avid for native HLA-I and recombinant HLA-I A2 at the PM. Nef binding to HLA-I at the PM was sensitive to specific inhibition of endocytosis. It was also attenuated by cyclodextrin disruption of PM lipid micro-domain architecture, a change that also retarded lateral diffusion and induced large clusters of HLA-I. In all, our data support a model for Nef down-regulation of HLA-I that involves both major trafficking itineraries and persistent protein-protein interactions throughout the cell.

Indexed as

Models, BiologicalCell MembraneEndocytosisEndoplasmic ReticulumGolgi ApparatusHeLa CellsHistocompatibility Antigens Class IHIV-1HumansLeukocytes, Mononuclearnef Gene Products, Human Immunodeficiency VirusProtein TransportHistocompatibility Antigens Class Inef Gene Products, Human Immunodeficiency Virusnef protein, Human immunodeficiency virus 1

Identifiers

PMID20622010
PMCPMC2945581

What OpenQuestion holds

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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.