4P9L

Crystal Structure of mouse Ryanodine Receptor 2 SPRY2 Domain (1080-1253) disease mutant A1107M


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4361 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.151 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structures of wild type and disease mutant forms of the ryanodine receptor SPRY2 domain.

Lau, K.Van Petegem, F.

(2014) Nat Commun 5: 5397-5397

  • DOI: 10.1038/ncomms6397
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Ryanodine receptors (RyRs) form channels responsible for the release of Ca(2+) from the endoplasmic and sarcoplasmic reticulum. The SPRY2 domain in the skeletal muscle isoform (RyR1) has been proposed as a direct link with L-type calcium channels (Ca ...

    Ryanodine receptors (RyRs) form channels responsible for the release of Ca(2+) from the endoplasmic and sarcoplasmic reticulum. The SPRY2 domain in the skeletal muscle isoform (RyR1) has been proposed as a direct link with L-type calcium channels (CaV1.1), allowing for direct mechanical coupling between plasma membrane depolarization and Ca(2+) release. Here we present the crystal structures of the SPRY2 domain from RyR1 and RyR2 at 1.34-1.84 Å resolution. They form two antiparallel β sheets establishing a core, and four additional modules of which several are required for proper folding. A buried disease mutation, linked to hypertrophic cardiomyopathy and loss-of-function, induces local misfolding and strong destabilization. Isothermal titration calorimetry experiments negate the RyR1 SPRY2 domain as the major link with CaV1.1. Instead, docking into full-length RyR1 cryo-electron microscopy maps suggests that the SPRY2 domain forms a link between the N-terminal gating ring and the clamp region.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, The Life Sciences Institute, University of British Columbia, 2350 Health Sciences Mall, Vancouver, British Columbia, Canada V6T 1Z3.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ryanodine receptor 2
A
177Mus musculusMutation(s): 1 
Gene Names: Ryr2
Find proteins for E9Q401 (Mus musculus)
Go to UniProtKB:  E9Q401
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4361 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.151 
  • Space Group: P 2 21 21
Unit Cell:
Length (Å)Angle (°)
a = 36.738α = 90.00
b = 66.989β = 90.00
c = 67.232γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Canadian Institutes of Health ResearchCanada--

Revision History 

  • Version 1.0: 2014-11-05
    Type: Initial release
  • Version 1.1: 2018-04-18
    Type: Data collection, Database references, Derived calculations, Other, Source and taxonomy