6G1K

Electron cryo-microscopy structure of the canonical TRPC4 ion channel


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Electron cryo-microscopy structure of the canonical TRPC4 ion channel.

Vinayagam, D.Mager, T.Apelbaum, A.Bothe, A.Merino, F.Hofnagel, O.Gatsogiannis, C.Raunser, S.

(2018) Elife 7

  • DOI: 10.7554/eLife.36615
  • Primary Citation of Related Structures:  
    6G1K

  • PubMed Abstract: 
  • Canonical transient receptor channels (TRPC) are non-selective cation channels. They are involved in receptor-operated Ca 2+ signaling and have been proposed to act as store-operated channels (SOC). Their malfunction is related to cardiomyopathies and their modulation by small molecules has been shown to be effective against renal cancer cells ...

    Canonical transient receptor channels (TRPC) are non-selective cation channels. They are involved in receptor-operated Ca 2+ signaling and have been proposed to act as store-operated channels (SOC). Their malfunction is related to cardiomyopathies and their modulation by small molecules has been shown to be effective against renal cancer cells. The molecular mechanism underlying the complex activation and regulation is poorly understood. Here, we report the electron cryo-microscopy structure of zebrafish TRPC4 in its unliganded (apo), closed state at an overall resolution of 3.6 Å. The structure reveals the molecular architecture of the cation conducting pore, including the selectivity filter and lower gate. The cytoplasmic domain contains two key hubs that have been shown to interact with modulating proteins. Structural comparisons with other TRP channels give novel insights into the general architecture and domain organization of this superfamily of channels and help to understand their function and pharmacology.


    Organizational Affiliation

    Department of Structural Biochemistry, Max Planck Institute of Molecular Physiology, Dortmund, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Transient receptor potential cation channel subfamily c member 4aA, B, C, D921Danio rerioMutation(s): 0 
Gene Names: trpc4btrpc4a
Membrane Entity: Yes 
UniProt
Find proteins for U3N7D8 (Danio rerio)
Explore U3N7D8 
Go to UniProtKB:  U3N7D8
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research CouncilGermany615984
Max Planck SocietyGermany--

Revision History  (Full details and data files)

  • Version 1.0: 2018-05-02
    Type: Initial release
  • Version 1.1: 2018-05-09
    Changes: Data collection, Database references
  • Version 1.2: 2018-08-01
    Changes: Data collection, Structure summary