Evidence map›Paper›PMID 18057255›Full record

ArticleJournal of virology2008

Cooperative binding of the class I major histocompatibility complex cytoplasmic domain and human immunodeficiency virus type 1 Nef to the endosomal AP-1 complex via its mu subunit.

Colleen M Noviello, Serge Benichou, John C Guatelli

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

51 citing papers in PubMed, 80 citations in OpenAlex.

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  12. Hijacking of endocytosis by HIV-1 Nef is becoming crystal clear.Nature structural & molecular biology · 2020
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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 at 2 institutions in 2 countries.

Colleen M NovielloUniversity of California-San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0679, USA.
Serge Benichou
John C Guatelli
University of California, San Diego · USCentre National de la Recherche Scientifique · FR

Funding

VirologyP30AI036214 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Maile Ann Young Karris · 1994 to 2026
$78.4M
HIV-1 NEF AND VIRAL INFECTIVITYR01AI038201 · NIAID · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI GUATELLI, JOHN C. · 1996 to 2013
$4.1M
The MHC-I, HIV-1 Nef, AP-1 ComplexR21AI076040 · NIAID · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI GUATELLI, JOHN C. · 2007 to 2008
$369k
HIV 1 NEF and InfectivityR21AI038201 · NIAID · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI GUATELLI, JOHN · 2003 to 2003
$331k
NIAID NIH HHS AI038201NIAID NIH HHS AI076040NIAID NIH HHS AI 36214NIAID NIH HHS P30 AI036214NIAID NIH HHS R01 AI038201NIAID NIH HHS R21 AI038201NIAID NIH HHS R21 AI076040
6 · The paper itself

Abstract

Human immunodeficiency virus type 1 Nef provides immune evasion by decreasing the expression of major histocompatibility complex class I (MHC-I) at the surfaces of infected cells. The endosomal clathrin adaptor protein complex AP-1 is a key cellular cofactor for this activity, and it is recruited to the MHC-I cytoplasmic domain (CD) in the presence of Nef by an uncharacterized mechanism. To determine the molecular basis of this recruitment, we used an MHC-I CD-Nef fusion protein to represent the MHC-I CD/Nef complex during protein interaction assays. The MHC-I CD had no intrinsic ability to bind AP-1, but it conferred binding activity when fused to Nef. This activity was independent of the canonical leucine-based AP-binding motif in Nef; it required residue Y320 in the MHC-I CD and residues E62-65 and P78 in Nef, and it involved the mu but not the gamma/sigma subunits of AP-1. The impaired binding of mutants encoding substitutions of E62-65 or P78 in Nef was rescued by replacing the Y320SQA sequence in the MHC-I CD with YSQL, suggesting that Nef allows the YSQA sequence to act as if it were a canonical mu-binding motif. These data identify the mu subunit of AP-1 (mu1) as the key target of the MHC-I CD/Nef complex, and they indicate that both Y320 in the MHC-I CD and E62-65 in Nef interact directly with mu1. The data support a cooperative binding model in which Nef functions as a clathrin-associated sorting protein that allows recognition of an incomplete, tyrosine-based mu-binding signal in the MHC-I CD by AP-1.

Indexed as

Amino Acid MotifsAmino Acid SubstitutionCell LineHistocompatibility Antigens Class IHIV-1HumansMutagenesis, Site-DirectedMutant Proteinsnef Gene Products, Human Immunodeficiency VirusProtein BindingProtein Interaction MappingProtein Structure, TertiaryTranscription Factor AP-1Histocompatibility Antigens Class IMutant Proteinsnef Gene Products, Human Immunodeficiency Virusnef protein, Human immunodeficiency virus 1Transcription Factor AP-1

Identifiers

PMID18057255
PMCPMC2224416
OpenAlexW2129105415

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.