Evidence map›Paper›PMID 32943551›Full record

ArticleThe Journal of biological chemistry2020

Membrane orientation and oligomerization of the melanocortin receptor accessory protein 2.

Valerie Chen, Antonio E Bruno, Laura L Britt, Ciria C Hernandez, Luis E Gimenez, Alys Peisley, Roger D Cone, Glenn L Millhauser

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.9field-weighted citation impact, top 31% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Arginine 125 Is an Essential Residue for the Function of MRAP2.International journal of molecular sciences · 2022
    Article
  7. Article
  8. Article
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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 2 institutions in 1 country.

Valerie ChenDepartment of Chemistry and Biochemistry, University of California, Santa Cruz, California, USA.
Antonio E BrunoDepartment of Chemistry and Biochemistry, University of California, Santa Cruz, California, USA.
Laura L BrittDepartment of Chemistry and Biochemistry, University of California, Santa Cruz, California, USA.
Ciria C HernandezLife Sciences Institute and Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA.
Luis E GimenezLife Sciences Institute and Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA.
Alys PeisleyLife Sciences Institute and Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA.
Roger D ConeLife Sciences Institute and Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA.
Glenn L MillhauserDepartment of Chemistry and Biochemistry, University of California, Santa Cruz, California, USA. Electronic address: glennm@ucsc.edu.
University of California, Santa Cruz · USUniversity of Michigan · US

Funding

Regional Pilot And Feasibility Study Grants ProgramP30DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Mehboob A Hussain · 2013 to 2026
$24.3M
Melanocortin Signaling in Feeding BehaviorR01DK070332 · NIDDK · VANDERBILT UNIVERSITY · PI CONE, ROGER D. · 2004 to 2017
$6.1M
Molecular Mechanisms of AgRP SignalingR01DK110403 · NIDDK · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI MILLHAUSER, GLENN L · 2017 to 2020
$1.7M
NIDDK NIH HHS P30 DK020572NIDDK NIH HHS R01 DK070332NIDDK NIH HHS R01 DK110403
6 · The paper itself

Abstract

The melanocortin receptor accessory protein 2 (MRAP2) plays a pivotal role in the regulation of several G protein-coupled receptors that are essential for energy balance and food intake. MRAP2 loss-of-function results in obesity in mammals. MRAP2 and its homolog MRAP1 have an unusual membrane topology and are the only known eukaryotic proteins that thread into the membrane in both orientations. In this study, we demonstrate that the conserved polybasic motif that dictates the membrane topology and dimerization of MRAP1 does not control the membrane orientation and dimerization of MRAP2. We also show that MRAP2 dimerizes through its transmembrane domain and can form higher-order oligomers that arrange MRAP2 monomers in a parallel orientation. Investigating the molecular details of MRAP2 structure is essential for understanding the mechanism by which it regulates G protein-coupled receptors and will aid in elucidating the pathways involved in metabolic dysfunction.

Indexed as

Protein MultimerizationAdaptor Proteins, Signal TransducingCell MembraneHEK293 CellsHumansProtein DomainsAdaptor Proteins, Signal TransducingMRAP2 protein, humanaccessory proteinG protein–coupled receptor (GPCR)melanocortin receptormembrane proteinmembrane threadingmetabolic regulationobesitytransmembrane domain

Identifiers

PMID32943551
PMCPMC7705299
OpenAlexW3087307869

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.