Evidence map›Paper›PMID 25955971›Full record

ArticleScientific reports2015

BRET evidence that β2 adrenergic receptors do not oligomerize in cells.

Tien-Hung Lan, Qiuju Liu, Chunman Li, Guangyu Wu, Jan Steyaert, Nevin A Lambert

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. The β2-adrenergic receptor associates with CXCR4 multimers in human cancer cells.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  5. The MProceedings of the National Academy of Sciences of the United States of America · 2022
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  6. Article
  7. Molecular insights into mechanisms of GPCR hijacking byProceedings of the National Academy of Sciences of the United States of America · 2021
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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

6 authors at 2 institutions in 2 countries.

Tien-Hung LanDepartment of Pharmacology and Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912-2300 USA.
Qiuju LiuDepartment of Pharmacology and Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912-2300 USA.
Chunman LiDepartment of Pharmacology and Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912-2300 USA.
Guangyu WuDepartment of Pharmacology and Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912-2300 USA.
Jan SteyaertStructural Biology Brussels, Vrije Universiteit Brussel (VUB), and Structural Biology Research Center (VIB), Brussels, Belgium.
Nevin A LambertDepartment of Pharmacology and Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912-2300 USA.
Augusta University · USVrije Universiteit Brussel · BE

Funding

ER-to-Golgi traffic and signal regulation of GPCRsR01GM076167 · NIGMS · LSU HEALTH SCIENCES CENTER · PI WU, GUANGYU · 2006 to 2013
$2.2M
GPCR signaling complexes in living cellsR01GM078319 · NIGMS · AUGUSTA UNIVERSITY · PI LAMBERT, NEVIN ALAN · 2007 to 2017
$2.1M
Single-molecule and ensemble imaging of GPCR-G protein complexes in live cellsR01GM109879 · NIGMS · AUGUSTA UNIVERSITY · PI JAVITCH, JONATHAN A, LAMBERT, NEVIN ALAN · 2014 to 2017
$1.1M
NIGMS NIH HHS GM076167NIGMS NIH HHS GM078319NIGMS NIH HHS R01 GM076167NIGMS NIH HHS R01 GM078319
6 · The paper itself

Abstract

Bioluminescence resonance energy transfer (BRET) is often used to study association of membrane proteins, and in particular oligomerization of G protein-coupled receptors (GPCRs). Oligomerization of class A GPCRs is controversial, in part because the methods used to study this question are not completely understood. Here we reconsider oligomerization of the class A β2 adrenergic receptor (β2AR), and reevaluate BRET titration as a method to study membrane protein association. Using inducible expression of the energy acceptor at multiple levels of donor expression we find that BRET between β2AR protomers is directly proportional to the density of the acceptor up to ~3,000 acceptors μm(-2), and does not depend on the density of the donor or on the acceptor:donor (A:D) stoichiometry. In contrast, BRET between tightly-associating control proteins does not depend on the density of the acceptor, but does depend on the density of the donor and on the A:D ratio. We also find that the standard frameworks used to interpret BRET titration experiments rely on simplifying assumptions that are frequently invalid. These results suggest that β2ARs do not oligomerize in cells, and demonstrate a reliable method of assessing membrane protein association with BRET.

Indexed as

Fluorescence Resonance Energy TransferProtein MultimerizationHEK293 CellsHumansReceptors, Adrenergic, beta-2TransfectionReceptors, Adrenergic, beta-2

Identifiers

PMID25955971
PMCPMC4424835
OpenAlexW2259708177

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LicenceCC BY
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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.