4I2S

Crystal structure of rabbit ryanodine receptor 1 (residues 1-536) disease mutant I404M


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Disease mutations in the ryanodine receptor N-terminal region couple to a mobile intersubunit interface.

Kimlicka, L.Lau, K.Tung, C.C.Van Petegem, F.

(2013) Nat Commun 4: 1506-1506

  • DOI: 10.1038/ncomms2501
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Ryanodine receptors are large channels that release Ca(2+) from the endoplasmic and sarcoplasmic reticulum. Hundreds of RyR mutations can cause cardiac and skeletal muscle disorders, yet detailed mechanisms explaining their effects have been lacking. ...

    Ryanodine receptors are large channels that release Ca(2+) from the endoplasmic and sarcoplasmic reticulum. Hundreds of RyR mutations can cause cardiac and skeletal muscle disorders, yet detailed mechanisms explaining their effects have been lacking. Here we compare pseudo-atomic models and propose that channel opening coincides with widening of a cytoplasmic vestibule formed by the N-terminal region, thus altering an interface targeted by 20 disease mutations. We solve crystal structures of several disease mutants that affect intrasubunit domain-domain interfaces. Mutations affecting intrasubunit ionic pairs alter relative domain orientations, and thus couple to surrounding interfaces. Buried disease mutations cause structural changes that also connect to the intersubunit contact area. These results suggest that the intersubunit contact region between N-terminal domains is a prime target for disease mutations, direct or indirect, and we present a model whereby ryanodine receptors and inositol-1,4,5-trisphosphate receptors are activated by altering domain arrangements in the N-terminal region.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ryanodine receptor 1
A
536Oryctolagus cuniculusMutation(s): 1 
Gene Names: RYR1
Find proteins for P11716 (Oryctolagus cuniculus)
Go to UniProtKB:  P11716
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.233 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 171.374α = 90
b = 171.374β = 90
c = 299.429γ = 120
Software Package:
Software NamePurpose
MxDCdata collection
PHASERphasing
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-02-20
    Type: Initial release
  • Version 1.1: 2013-03-06
    Changes: Database references