Evidence map›Paper›PMID 36302898›Full record

ArticleNature chemical biology2023

Ligand recognition and allosteric modulation of the human MRGPRX1 receptor.

Yongfeng Liu, Can Cao, Xi-Ping Huang, Ryan H Gumpper, Moira M Rachman, Sheng-Luen Shih, Brian E Krumm, Shicheng Zhang, Brian K Shoichet, Jonathan F Fay and 1 more

Abstract read
PubMed Publisher
In one paragraph

Article in Nature chemical biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.3field-weighted citation impact, top 6% 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

30 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Endosomal MrGPRX1 signaling sensitizes TRPV1 to enhance itch.Frontiers in molecular neuroscience · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. bioRxiv : the preprint server for biology · 2025
    Article
  10. Antimicrobial Peptide Signaling in Skin Diseases.JID innovations : skin science from molecules to population health · 2025
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Pathology of pain and its implications for therapeutic interventions.Signal transduction and targeted therapy · 2024
    Review
  17. Article
  18. Review
  19. Article
  20. Review
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

11 authors at 2 institutions in 1 country.

Yongfeng Liu *Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.ORCID 0000-0002-8649-7892
Can Cao *Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.ORCID 0000-0003-4017-741X
Xi-Ping HuangDepartment of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
Ryan H GumpperDepartment of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
Moira M RachmanDepartment of Pharmaceutical Sciences, University of California, San Francisco School of Medicine, San Francisco, CA, USA.
Sheng-Luen ShihDepartment of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.ORCID 0000-0002-6874-0529
Brian E KrummDepartment of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.ORCID 0000-0001-6039-4767
Shicheng ZhangDepartment of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA.ORCID 0000-0002-5245-443X
Brian K ShoichetDepartment of Pharmaceutical Sciences, University of California, San Francisco School of Medicine, San Francisco, CA, USA.ORCID 0000-0002-6098-7367
Jonathan F FayDepartment of Biochemistry and Biophysics, University of North Carolina School of Medicine, Chapel Hill, NC, USA. fayj@unc.edu.ORCID 0000-0003-1822-2384
Bryan L RothDepartment of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC, USA. bryan_roth@med.unc.edu.ORCID 0000-0002-0561-6520
University of North Carolina at Chapel Hill · USUniversity of California, San Francisco · US

Funding

Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI David Darr · 1985 to 2026
$201.5M
6 · The paper itself

Abstract

The human MAS-related G protein-coupled receptor X1 (MRGPRX1) is preferentially expressed in the small-diameter primary sensory neurons and involved in the mediation of nociception and pruritus. Central activation of MRGPRX1 by the endogenous opioid peptide fragment BAM8-22 and its positive allosteric modulator ML382 has been shown to effectively inhibit persistent pain, making MRGPRX1 a promising target for non-opioid pain treatment. However, the activation mechanism of MRGPRX1 is still largely unknown. Here we report three high-resolution cryogenic electron microscopy structures of MRGPRX1-Gαq in complex with BAM8-22 alone, with BAM8-22 and ML382 simultaneously as well as with a synthetic agonist compound-16. These structures reveal the agonist binding mode for MRGPRX1 and illuminate the structural requirements for positive allosteric modulation. Collectively, our findings provide a molecular understanding of the activation and allosteric modulation of the MRGPRX1 receptor, which could facilitate the structure-based design of non-opioid pain-relieving drugs.

Indexed as

PainReceptors, G-Protein-CoupledAllosteric RegulationAllosteric SiteHumansLigandsLigandsReceptors, G-Protein-Coupled

Identifiers

PMID36302898
OpenAlexW4307497067

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.