6LQI

Cryo-EM structure of the mouse Piezo1 isoform Piezo1.1


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 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

A Plug-and-Latch Mechanism for Gating the Mechanosensitive Piezo Channel.

Geng, J.Liu, W.Zhou, H.Zhang, T.Wang, L.Zhang, M.Li, Y.Shen, B.Li, X.Xiao, B.

(2020) Neuron 106: 438

  • DOI: 10.1016/j.neuron.2020.02.010
  • Primary Citation of Related Structures:  
    6LQI

  • PubMed Abstract: 
  • The mechanosensitive Piezo1 and Piezo2 channels convert mechanical force into cation permeation. However, their precise mechanogating and regulatory mechanisms remain elusive. Here, we report that Piezo1 utilizes three lateral ion-conducting portals equipped with physical gates for cooperative gating and splicing regulation ...

    The mechanosensitive Piezo1 and Piezo2 channels convert mechanical force into cation permeation. However, their precise mechanogating and regulatory mechanisms remain elusive. Here, we report that Piezo1 utilizes three lateral ion-conducting portals equipped with physical gates for cooperative gating and splicing regulation. Mutating residues lining the portal converts Piezo1 into an anion-selective channel, demonstrating the portal-based cation-permeating pathway. Intriguingly, the portal is physically blocked with a plug domain, which undergoes alternative splicing in both Piezo1 and Piezo2. The Piezo1 isoform has local openings of the portals, enlarged single-channel conductance and sensitized mechanosensitivity. Remarkably, the three plugs are strategically latched onto the central axis for coordinated gating of the three portals. Disrupting the latching induces three quantal sub-conductance states in Piezo1, but not in the isoform. Together, we propose that Piezo utilizes an elegant plug-and-latch mechanism to physically and coordinately gate the lateral portals through the spliceable plug gates.


    Organizational Affiliation

    State Key Laboratory of Membrane Biology, Tsinghua-Peking Joint Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, IDG/McGovern Institute for Brain Research, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China. Electronic address: xbailong@mail.tsinghua.edu.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Piezo-type mechanosensitive ion channel component 1A, B, C2523Mus musculusMutation(s): 0 
Gene Names: Piezo1Fam38a
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for E2JF22 (Mus musculus)
Explore E2JF22 
Go to UniProtKB:  E2JF22
IMPC:  MGI:3603204
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-03-04
    Type: Initial release
  • Version 1.1: 2020-03-18
    Changes: Database references
  • Version 1.2: 2020-05-27
    Changes: Database references