Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Predict Membrane 

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 485.92 kDa 
• Atom Count: 21453 
• Modelled Residue Count: 2700 
• Deposited Residue Count: 4269 
• Unique protein chains: 1

6BPZ

Structure of the mechanically activated ion channel Piezo1

• PDB DOI: 10.2210/pdb6BPZ/pdb
• EM Map EMD-7128: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Mus musculus
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTM


• 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 (NIH/NINDS), National Institutes of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR), Howard Hughes Medical Institute (HHMI)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.80 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

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

• PubMed: 29261642 
• DOI: 10.1038/nature25453
• Primary Citation of Related Structures:  
  6BPZ


• PubMed Abstract: 
  

Piezo1 and Piezo2 are mechanically activated ion channels that mediate touch perception, proprioception and vascular development. Piezo proteins are distinct from other ion channels and their structure remains poorly defined, which impedes 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-bladed 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 helical bundles that 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 foundation to dissect further how Piezo channels are regulated by mechanical force.

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Organizational Affiliation: 

Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California 92037, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
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	1423	Mus musculus	Mutation(s): 0  Gene Names: Piezo1, Fam38a Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for E2JF22 (Mus musculus) Explore E2JF22  Go to UniProtKB:  E2JF22
IMPC:  MGI:3603204

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.80 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2017-11-27 
• Released Date: 2017-12-27 
Deposition Author(s): Saotome, K., Kefauver, J.M., Patapoutian, A., Ward, A.B.

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Funding Organization	Location	Grant Number
Ray Thomas Edwards Foundation	United States	--
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)	United States	NS083174
National Institutes of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR)	United States	DE022358
Howard Hughes Medical Institute (HHMI)	United States	--

Revision History  

• Version 1.0: 2017-12-27
  Type: Initial release
  
• Version 1.1: 2018-01-03
  Changes: Database references
• Version 1.2: 2018-03-07
  Changes: Database references
• Version 1.3: 2018-07-18
  Changes: Data collection, Experimental preparation
• Version 1.4: 2019-11-20
  Changes: Author supporting evidence
• Version 1.5: 2019-12-18
  Changes: Other