Evidence map›Paper›PMID 22915120›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

Molecular and functional interaction between protocadherin-γC5 and GABAA receptors.

Yanfang Li, Haiyan Xiao, Tzu-Ting Chiou, Hongbing Jin, Bevan Bonhomme, Celia P Miralles, Noelia Pinal, Rashid Ali, Weisheng V Chen, Tom Maniatis and 1 more

Abstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
–field-weighted citation impact
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

39 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Cell Adhesion Molecule Protocadherin-γC5 Ameliorates Aβ Plaque Pathogenesis by Modulating Astrocyte Function in Alzheimer's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  6. Article
  7. Article
  8. A Unique Role for Protocadherin γC3 in Promoting Dendrite Arborization through an Axin1-Dependent Mechanism.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  9. Article
  10. Mouse models for the study of clustered protocadherins.Current topics in developmental biology · 2022
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Expression of protocadherin-γC4 protein in the rat brain.The Journal of comparative neurology · 2020
    Article
  17. Protocadherins at the Crossroad of Signaling Pathways.Frontiers in molecular neuroscience · 2020
    Review
  18. Article
  19. Review
  20. Article
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.

Yanfang LiDepartment of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut 06269, USA.
Haiyan Xiao
Tzu-Ting Chiou
Hongbing Jin
Bevan Bonhomme
Celia P Miralles
Noelia Pinal
Rashid Ali
Weisheng V Chen
Tom Maniatis
Angel L De Blas

Funding

Protocadherin Gene Expression and FunctionR01NS043915 · NINDS · HARVARD UNIVERSITY · PI MANIATIS, THOMAS P · 2002 to 2011
$6.5M
GABAA RECEPTOR - INTERACTING PROTEINSR01NS038752 · NINDS · UNIVERSITY OF CONNECTICUT STORRS · PI DE BLAS, ANGEL L · 2000 to 2014
$4.1M
NINDS NIH HHS R01 NS038752NINDS NIH HHS R01 NS043915
6 · The paper itself

Abstract

We have found that the γ2 subunit of the GABA(A) receptor (γ2-GABA(A)R) specifically interacts with protocadherin-γC5 (Pcdh-γC5) in the rat brain. The interaction occurs between the large intracellular loop of the γ2-GABA(A)R and the cytoplasmic domain of Pcdh-γC5. In brain extracts, Pcdh-γC5 coimmunoprecipitates with GABA(A)Rs. In cotransfected HEK293 cells, Pcdh-γC5 promotes the transfer of γ2-GABA(A)R to the cell surface. We have previously shown that, in cultured hippocampal neurons, endogenous Pcdh-γC5 forms clusters, some of which associate with GABAergic synapses. Overexpression of Pcdh-γC5 in hippocampal neurons increases the density of γ2-GABA(A)R clusters but has no significant effect on the number of GABAergic contacts that these neurons receive, indicating that Pcdh-γC5 is not synaptogenic. Deletion of the cytoplasmic domain of Pcdh-γC5 enhanced its surface expression but decreased the association with both γ2-GABA(A)R clusters and presynaptic GABAergic contacts. Cultured hippocampal neurons from the Pcdh-γ triple C-type isoform knock-out (TCKO) mouse (Pcdhg(tcko/tcko)) showed plenty of GABAergic synaptic contacts, although their density was reduced compared with sister cultures from wild-type and heterozygous mice. Knocking down Pcdh-γC5 expression with shRNA decreased γ2-GABA(A)R cluster density and GABAergic innervation. The results indicate that, although Pcdh-γC5 is not essential for GABAergic synapse formation or GABA(A)R clustering, (1) Pcdh-γC5 regulates the surface expression of GABA(A)Rs via cis-cytoplasmic interaction with γ2-GABA(A)R, and (2) Pcdh-γC5 plays a role in the stabilization and maintenance of some GABAergic synapses.

Indexed as

AnimalsBiotinylationCadherin Related ProteinsCadherinsCell Line, TransformedCells, CulturedDisks Large Homolog 4 ProteinEmbryo, MammalianFemaleGene Expression RegulationGlutamate DecarboxylaseGreen Fluorescent ProteinsGuanylate KinasesHippocampusHumansImmunoprecipitationCadherin Related ProteinsCadherinsDisks Large Homolog 4 ProteinDlg4 protein, mouseenhanced green fluorescent proteinGamma-protocadherinsGlutamate DecarboxylaseGreen Fluorescent ProteinsGuanylate KinasesMembrane ProteinsReceptors, GABA-ARNA, MessengerRNA, Small InterferingVesicular Inhibitory Amino Acid Transport Proteins

Identifiers

PMID22915120
PMCPMC3445339

What OpenQuestion holds

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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.