6BPZ

Structure of the mechanically activated ion channel Piezo1

  • Classification: MEMBRANE PROTEIN
  • Organism(s): Mus musculus
  • Expression System: Homo sapiens

  • Deposited: 2017-11-27 Released: 2017-12-27 
  • Deposition Author(s): Saotome, K., Kefauver, J.M., Patapoutian, A., Ward, A.B.
  • Funding Organization(s): Ray Thomas Edwards Foundation; National Institutes of Health/National Institute of Neurological Disorders and Stroke; National Institutes of Health/National Institute of Dental and Craniofacial Research; Howard Hughes Medical Institute 

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of the mechanically activated ion channel Piezo1.

Saotome, K.Murthy, S.E.Kefauver, J.M.Whitwam, T.Patapoutian, A.Ward, A.B.

(2018) Nature 554: 481-486

  • DOI: 10.1038/nature25453

  • PubMed Abstract: 
  • Piezo1 and Piezo2 are mechanically activated ion channels that mediate touch perception, proprioception and vascular development. Piezos are distinct from other ion channels and their structure remains poorly defined, impeding detailed study of their ...

    Piezo1 and Piezo2 are mechanically activated ion channels that mediate touch perception, proprioception and vascular development. Piezos are distinct from other ion channels and their structure remains poorly defined, impeding detailed study of their gating and ion permeation properties. Here we report a high-resolution cryo-electron microscopy structure of the mouse Piezo1 trimer. The detergent-solubilized complex adopts a three-blade propeller shape with a curved transmembrane region containing at least 26 transmembrane helices per protomer. The flexible propeller blades can adopt distinct conformations, and consist of a series of four-transmembrane helix bundles we term 'Piezo repeats'. Carboxy-terminal domains line the central ion pore, and the channel is closed by constrictions in the cytosol. A kinked helical beam and anchor domain link the Piezo repeats to the pore, and are poised to control gating allosterically. The structure provides a springboard to dissect further how Piezos are regulated by mechanical force.


    Organizational Affiliation

    Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Piezo-type mechanosensitive ion channel component 1,Piezo-type mechanosensitive ion channel component 1,mouse Piezo1,Piezo-type mechanosensitive ion channel component 1,Piezo-type mechanosensitive ion channel component 1
A, B, C
1423Mus musculusMutation(s): 0 
Gene Names: Piezo1 (Fam38a)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Mechanosensitive
Protein: 
Piezo1 mechanosensitive channel by cryo-EM
Find proteins for E2JF22 (Mus musculus)
Go to UniProtKB:  E2JF22
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
UNK
Query on UNK
A, B, C
L-PEPTIDE LINKINGC4 H9 N O2

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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ray Thomas Edwards FoundationUnited States--
National Institutes of Health/National Institute of Neurological Disorders and StrokeUnited StatesNS083174
National Institutes of Health/National Institute of Dental and Craniofacial ResearchUnited StatesDE022358
Howard Hughes Medical InstituteUnited States--

Revision History 

  • Version 1.0: 2017-12-27
    Type: Initial release
  • Version 1.1: 2018-01-03
    Type: Database references
  • Version 1.2: 2018-03-07
    Type: Database references
  • Version 1.3: 2018-07-18
    Type: Data collection, Experimental preparation