5VMS

CryoEM structure of Xenopus KCNQ1 channel


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The structure of KCNQ1 and a basis for calmodulin-mediated long QT syndrome

Mackinnon, R.Sun, J.

To be published.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Potassium voltage-gated channel subfamily KQT member 1
A
548Xenopus laevisMutation(s): 0 
Gene Names: kcnq1 (kvlqt1)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Potassium, Sodium, & Proton Ion-Selective
Protein: 
KCNQ1 cardiac slow-delayed rectifier K+ channel in complex with calmodulin
Find proteins for P70057 (Xenopus laevis)
Go to UniProtKB:  P70057
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Calmodulin
B
149Homo sapiensMutation(s): 0 
Gene Names: CALM1 (CALM, CAM, CAM1)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Potassium, Sodium, & Proton Ion-Selective
Protein: 
KCNQ1 cardiac slow-delayed rectifier K+ channel in complex with calmodulin
Find proteins for P0DP23 (Homo sapiens)
Go to Gene View: CALM1
Go to UniProtKB:  P0DP23
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2017-04-28 
  • Released Date: 2017-06-07 
  • Deposition Author(s): Mackinnon, R., Sun, J.

Funding OrganizationLocationGrant Number
Howard Hughes Medical InstituteUnited States--
American Heart AssociationUnited States17POST32260003

Revision History 

  • Version 1.0: 2017-06-07
    Type: Initial release
  • Version 1.1: 2017-09-13
    Type: Author supporting evidence, Data collection