Evidence map›Paper›PMID 30647152›Full record

ArticlemBio2019

Distinct Roles of Extracellular Domains in the Epstein-Barr Virus-Encoded BILF1 Receptor for Signaling and Major Histocompatibility Complex Class I Downregulation.

Suzan Fares, Katja Spiess, Emma T B Olesen, Jianmin Zuo, Sarah Jackson, Thomas N Kledal, Mark R Wills, Mette M Rosenkilde

Open access · goldAbstract read
In one paragraph

Article in mBio, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

21 citing papers in PubMed, 37 citations in OpenAlex.

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  19. Epstein-Barr Virus and Multiple Sclerosis.Frontiers in immunology · 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

8 authors at 4 institutions in 2 countries.

Suzan FaresLaboratory for Molecular and Translational Pharmacology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Katja SpiessLaboratory for Molecular and Translational Pharmacology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark kspiess@sund.ku.dk rosenkilde@sund.ku.dk.
Emma T B OlesenLaboratory for Molecular and Translational Pharmacology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Jianmin ZuoInstitute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom.
Sarah JacksonDivision of Infectious Diseases, Department of Medicine, University of Cambridge, Cambridge, United Kingdom.ORCID 0000-0002-4230-9220
Thomas N KledalNational Veterinary Institute, Technical University of Denmark, Lyngby, Denmark.
Mark R WillsDivision of Infectious Diseases, Department of Medicine, University of Cambridge, Cambridge, United Kingdom.
Mette M RosenkildeLaboratory for Molecular and Translational Pharmacology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark kspiess@sund.ku.dk rosenkilde@sund.ku.dk.
University of Copenhagen · DKUniversity of Cambridge · GBTechnical University of Denmark · DKUniversity of Birmingham · GB

Funding

Medical Research Council G0701279Medical Research Council G9202171Medical Research Council MR/K021087/1Medical Research Council MR/S00081X/1
6 · The paper itself

Abstract

The Epstein-Barr virus (EBV) BILF1 gene encodes a constitutively active G protein-coupled receptor (GPCR) that downregulates major histocompatibility complex (MHC) class I and induces signaling-dependent tumorigenesis. Different BILF1 homologs display highly conserved extracellular loops (ECLs) including the conserved cysteine residues involved in disulfide bridges present in class A GPCRs (GPCR bridge between transmembrane helix 3 [TM-3] and ECL-2) and in chemokine receptors (CKR bridge between the N terminus and ECL-3). In order to investigate the roles of the conserved residues in the receptor functions, 25 mutations were created in the extracellular domains. Luciferase reporter assays and flow cytometry were used to investigate the G protein signaling and MHC class I downregulation in HEK293 cells. We find that the cysteine residues involved in the GPCR bridge are important for both signaling and MHC class I downregulation, whereas the cysteine residues in the N terminus and ECL-3 are dispensable for signaling but important for MHC class I downregulation. Multiple conserved residues in the extracellular regions are important for the receptor-induced MHC class I downregulation, but not for signaling, indicating distinct structural requirements for these two functions. In an engineered receptor containing a binding site for Zn

Indexed as

Down-RegulationHost-Pathogen InteractionsSignal TransductionDNA Mutational AnalysisFlow CytometryGenes, ReporterHEK293 CellsHerpesvirus 4, HumanHistocompatibility Antigens Class IHumansLuciferasesMutant ProteinsReceptors, G-Protein-CoupledViral ProteinsBILF1 protein, Epstein-Barr virusHistocompatibility Antigens Class ILuciferasesMutant ProteinsReceptors, G-Protein-CoupledViral ProteinsEBV-BILF1Epstein-Barr virusGPCRmajor histocompatibility complexsignalingtumor immunology

Identifiers

PMID30647152
PMCPMC6336419
OpenAlexW2909318142

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.