Evidence map›Paper›PMID 27991905›Full record

ArticleNature structural & molecular biology2017

Structure of the polycystic kidney disease TRP channel Polycystin-2 (PC2).

Mariana Grieben, Ashley C W Pike, Chitra A Shintre, Elisa Venturi, Sam El-Ajouz, Annamaria Tessitore, Leela Shrestha, Shubhashish Mukhopadhyay, Pravin Mahajan, Rod Chalk and 4 more

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In one paragraph

Article in Nature structural & molecular biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed
24.3field-weighted citation impact, top 1% 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

112 citing papers in PubMed, 190 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. A Ciliary Phosphoinositide Pathway Regulates the Dosage of Polycystins in Primary Cilia.Journal of the American Society of Nephrology : JASN · 2026
    Article
  7. AbioRxiv : the preprint server for biology · 2026
    Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Pathogenic variants in the polycystin pore helix cause distinct forms of channel dysfunction.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. A synthetic method to assay polycystin channel biophysics.bioRxiv : the preprint server for biology · 2024
    Article
  20. Calcium signalling and transport in the kidney.Nature reviews. Nephrology · 2024
    Review

52 more citing papers are in PubMed but not listed here.

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

14 authors at 2 institutions in 1 country.

Mariana GriebenStructural Genomics Consortium, University of Oxford, Oxford, UK.
Ashley C W PikeStructural Genomics Consortium, University of Oxford, Oxford, UK.ORCID 0000-0001-9661-2607
Chitra A ShintreStructural Genomics Consortium, University of Oxford, Oxford, UK.
Elisa VenturiDepartment of Pharmacology, University of Oxford, Oxford, UK.
Sam El-AjouzDepartment of Pharmacology, University of Oxford, Oxford, UK.
Annamaria TessitoreStructural Genomics Consortium, University of Oxford, Oxford, UK.
Leela ShresthaStructural Genomics Consortium, University of Oxford, Oxford, UK.
Shubhashish MukhopadhyayStructural Genomics Consortium, University of Oxford, Oxford, UK.
Pravin MahajanStructural Genomics Consortium, University of Oxford, Oxford, UK.
Rod ChalkStructural Genomics Consortium, University of Oxford, Oxford, UK.
Nicola A Burgess-BrownStructural Genomics Consortium, University of Oxford, Oxford, UK.
Rebecca SitsapesanDepartment of Pharmacology, University of Oxford, Oxford, UK.
Juha T HuiskonenOxford Particle Imaging Centre, Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK.ORCID 0000-0002-0348-7323
Elisabeth P CarpenterStructural Genomics Consortium, University of Oxford, Oxford, UK.ORCID 0000-0001-9138-2937
University of Oxford · GBCentre for Human Genetics · GB

Funding

Resource for Biocomputing Visualization and InformaticsP41GM103311 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FERRIN, THOMAS E · 2012 to 2017
$8.2M
British Heart Foundation RG/10/14/28576NIGMS NIH HHS P41 GM103311Wellcome Trust 060208/Z/00/ZWellcome Trust 090532/Z/09/ZWellcome Trust 092809/Z/10/ZWellcome Trust 093305/Z/10/Z
6 · The paper itself

Abstract

Mutations in either polycystin-1 (PC1 or PKD1) or polycystin-2 (PC2, PKD2 or TRPP1) cause autosomal-dominant polycystic kidney disease (ADPKD) through unknown mechanisms. Here we present the structure of human PC2 in a closed conformation, solved by electron cryomicroscopy at 4.2-Å resolution. The structure reveals a novel polycystin-specific 'tetragonal opening for polycystins' (TOP) domain tightly bound to the top of a classic transient receptor potential (TRP) channel structure. The TOP domain is formed from two extensions to the voltage-sensor-like domain (VSLD); it covers the channel's endoplasmic reticulum lumen or extracellular surface and encloses an upper vestibule, above the pore filter, without blocking the ion-conduction pathway. The TOP-domain fold is conserved among the polycystins, including the homologous channel-like region of PC1, and is the site of a cluster of ADPKD-associated missense variants. Extensive contacts among the TOP-domain subunits, the pore and the VSLD provide ample scope for regulation through physical and chemical stimuli.

Indexed as

AnimalsCryoelectron MicroscopyHumansModels, MolecularMutation, MissensePolycystic Kidney, Autosomal DominantProtein Conformation, alpha-HelicalProtein DomainsSf9 CellsSpodopteraTRPP Cation ChannelsTRPP Cation Channels

Identifiers

PMID27991905
OpenAlexW2566371524

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.