5VA2

Cryo-EM structure of the human ether-a-go-go related K+ channel


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 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

Cryo-EM Structure of the Open Human Ether-a-go-go-Related K(+) Channel hERG.

Wang, W.MacKinnon, R.

(2017) Cell 169: 422-430.e10

  • DOI: 10.1016/j.cell.2017.03.048
  • Primary Citation of Related Structures:  
    5VA1, 5VA3, 5VA2

  • PubMed Abstract: 
  • The human ether-à-go-go-related potassium channel (hERG, Kv11.1) is a voltage-dependent channel known for its role in repolarizing the cardiac action potential. hERG alteration by mutation or pharmacological inhibition produces Long QT syndrome and the lethal cardiac arrhythmia torsade de pointes ...

    The human ether-à-go-go-related potassium channel (hERG, Kv11.1) is a voltage-dependent channel known for its role in repolarizing the cardiac action potential. hERG alteration by mutation or pharmacological inhibition produces Long QT syndrome and the lethal cardiac arrhythmia torsade de pointes. We have determined the molecular structure of hERG to 3.8 Å using cryo-electron microscopy. In this structure, the voltage sensors adopt a depolarized conformation, and the pore is open. The central cavity has an atypically small central volume surrounded by four deep hydrophobic pockets, which may explain hERG's unusual sensitivity to many drugs. A subtle structural feature of the hERG selectivity filter might correlate with its fast inactivation rate, which is key to hERG's role in cardiac action potential repolarization.


    Organizational Affiliation

    Laboratory of Molecular Neurobiology and Biophysics, The Rockefeller University and Howard Hughes Medical Institute, 1230 York Avenue, New York, NY 10065, USA. Electronic address: mackinn@rockefeller.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Potassium voltage-gated channel subfamily H member 2A825Homo sapiensMutation(s): 0 
Gene Names: KCNH2ERGERG1HERG
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q12809 (Homo sapiens)
Explore Q12809 
Go to UniProtKB:  Q12809
PHAROS:  Q12809
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 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 StatesNIHGM43949
Howard Hughes Medical Institute (HHMI)United StatesR. M. is an investigator in the Howard Hughes Medical Institute

Revision History  (Full details and data files)

  • Version 1.0: 2017-05-03
    Type: Initial release
  • Version 1.1: 2017-09-13
    Changes: Author supporting evidence, Data collection
  • Version 1.2: 2018-07-18
    Changes: Data collection
  • Version 1.3: 2019-11-20
    Changes: Author supporting evidence