Evidence map›Paper›PMID 12730362›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

Identification and characterization of a G protein-coupled receptor for the neuropeptide proctolin in Drosophilamelanogaster.

Erik C Johnson, Stephen F Garczynski, Dongkook Park, Joe W Crim, Dick R Nassel, Paul H Taghert

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 81 citations in OpenAlex.

  1. Article
  2. Toxins in disguise: Neuropeptide mimicry across animal venoms.General and comparative endocrinology · 2026
    Review
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  18. Nox regulation of smooth muscle contraction.Free radical biology & medicine · 2007
    Article
  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

6 authors at 2 institutions in 2 countries.

Erik C JohnsonDepartment of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, MO 63110, USA.
Stephen F Garczynski
Dongkook Park
Joe W Crim
Dick R Nassel
Paul H Taghert
University of Georgia · USStockholm University · SE

Funding

DEVELOPMENTAL REGULATION OF NEUROPEPTIDE EXPRESSIONR01NS021749 · NINDS · WASHINGTON UNIVERSITY · PI TAGHERT, PAUL H · 1985 to 2013
$4.3M
NINDS NIH HHS NS21749NINDS NIH HHS R01 NS021749
6 · The paper itself

Abstract

Proctolin is a bioactive neuropeptide that modulates interneuronal and neuromuscular synaptic transmission in a wide variety of arthropods. We present several lines of evidence to propose that the orphan G protein-coupled receptor CG6986 of Drosophila is a proctolin receptor. When expressed in mammalian cells, CG6986 confers second messenger activation after proctolin application, with an EC(50) of 0.3 nM. In competition-based studies, the CG6986 receptor binds proctolin with high affinity (IC(50) = 4 nM). By microarray analysis, CG6986 transcript is consistently detected in head mRNA of different genotypes, and under different environmental conditions. By blot analysis, anti-CG6986 antibodies detect a band in tissue homogenates similar to the predicted size of the protein. Proctolin receptor immunosignals are found in the hindgut, heart, and in distinct neuronal populations of the CNS; such patterns correlate with previous demonstrations of proctolin biological activity, and in several instances, with areas of proctolin peptide immunosignals. The identification of a bona fide proctolin receptor provides the basis for a mechanistic analysis of this critical synaptic modulator.

Indexed as

NeuropeptidesAnimalsBinding SitesCell LineCloning, MolecularDrosophila melanogasterDrosophila ProteinsGTP-Binding ProteinsHumansKineticsOligopeptidesOrgan SpecificityReceptors, PeptideRecombinant ProteinsSignal TransductionTransfectionDrosophila ProteinsGTP-Binding ProteinsNeuropeptidesOligopeptidesProc-R protein, DrosophilaproctolinReceptors, PeptideRecombinant Proteins

Identifiers

PMID12730362
PMCPMC156349
OpenAlexW2079950445

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.