6BCJ

cryo-EM structure of TRPM4 in apo state with short coiled coil at 3.1 angstrom resolution

  • Classification: TRANSPORT PROTEIN
  • Organism(s): Mus musculus
  • Expression System: Homo sapiens
  • Mutation(s): No 

  • Deposited: 2017-10-20 Released: 2017-12-13 
  • Deposition Author(s): Guo, J., She, J., Chen, Q., Bai, X., Jiang, Y.
  • Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), Welch Foundation, Howard Hughes Medical Institute (HHMI)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.14 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structures of the calcium-activated, non-selective cation channel TRPM4.

Guo, J.She, J.Zeng, W.Chen, Q.Bai, X.C.Jiang, Y.

(2017) Nature 552: 205-209

  • DOI: 10.1038/nature24997
  • Primary Citation of Related Structures:  
    6BCO, 6BCQ, 6BCJ, 6BCL

  • PubMed Abstract: 
  • TRPM4 is a calcium-activated, phosphatidylinositol-4,5-bisphosphate (PtdIns(4,5)P 2 ) -modulated, non-selective cation channel that belongs to the family of melastatin-related transient receptor potential (TRPM) channels. Here we present t ...

    TRPM4 is a calcium-activated, phosphatidylinositol-4,5-bisphosphate (PtdIns(4,5)P 2 ) -modulated, non-selective cation channel that belongs to the family of melastatin-related transient receptor potential (TRPM) channels. Here we present the electron cryo-microscopy structures of the mouse TRPM4 channel with and without ATP. TRPM4 consists of multiple transmembrane and cytosolic domains, which assemble into a three-tiered architecture. The N-terminal nucleotide-binding domain and the C-terminal coiled-coil participate in the tetrameric assembly of the channel; ATP binds at the nucleotide-binding domain and inhibits channel activity. TRPM4 has an exceptionally wide filter but is only permeable to monovalent cations; filter residue Gln973 is essential in defining monovalent selectivity. The S1-S4 domain and the post-S6 TRP domain form the central gating apparatus that probably houses the Ca 2+ - and PtdIns(4,5)P 2 -binding sites. These structures provide an essential starting point for elucidating the complex gating mechanisms of TRPM4 and reveal the molecular architecture of the TRPM family.


    Organizational Affiliation

    Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, Texas 75390-9040, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Transient receptor potential cation channel subfamily M member 4ABCD1254Mus musculusMutation(s): 0 
Gene Names: Trpm4Ltrpc4
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Transient Receptor Potential (TRP)
Protein: 
TRPM4 Ca2+-activated TRP channel, apo state with short coiled-coil
Find proteins for Q7TN37 (Mus musculus)
Explore Q7TN37 
Go to UniProtKB:  Q7TN37
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.14 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM079179
Welch FoundationUnited StatesI-1578
Howard Hughes Medical Institute (HHMI)United States--

Revision History 

  • Version 1.0: 2017-12-13
    Type: Initial release
  • Version 1.1: 2017-12-20
    Changes: Database references
  • Version 1.2: 2017-12-27
    Changes: Database references
  • Version 1.3: 2018-07-18
    Changes: Data collection
  • Version 1.4: 2019-11-20
    Changes: Author supporting evidence, Data collection