Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 24291.32 
• Atom Count: 1340 
• Residue Count: 217 
• Unique protein chains: 1

3IM7

Crystal structure of mouse Ryanodine Receptor 2 N-terminal domain (1-217) disease mutant A77V

• DOI: 10.2210/pdb3IM7/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): 1 


• Deposited: 2009-08-09 Released: 2009-11-17 
• Deposition Author(s): Van Petegem, F., Lobo, P.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.21 Å
• R-Value Free: 0.275 
• R-Value Work: 0.223 

Literature

Crystal structures of the N-terminal domains of cardiac and skeletal muscle ryanodine receptors: insights into disease mutations.

Lobo, P.A., Van Petegem, F.

(2009) Structure 17: 1505-1514

• PubMed: 19913485 
• DOI: 10.1016/j.str.2009.08.016
• Primary Citation of Related Structures:  
  3IM6, 3IM5, 3ILA


• PubMed Abstract: 
  

Ryanodine receptors (RyRs) are channels governing the release of Ca(2+) from the sarcoplasmic or endoplasmic reticulum. They are required for the contraction of both skeletal (RyR1) and cardiac (RyR2) muscles. Mutations in both RyR1 and RyR2 have been associated with severe genetic disorders, but high-resolution data describing the disease variants in detail have been lacking. Here we present the crystal structures of the N-terminal domains of both RyR2 (1-217) and RyR1 (9-205) at 2.55 A and 2.9 A, respectively. The domains map in a hot spot region for disease mutations. Both structures consist of a core beta trefoil domain flanked by an alpha helix. Crystal structures of two RyR2 disease mutants, A77V (2.2 A) and V186M (1.7 A), show that the mutations cause distinct local changes in the surface of the protein. A RyR2 deletion mutant causes significant changes in the thermal stability. The disease positions highlight two putative binding interfaces required for normal RyR function.

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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Cardiac Ca2+ release channel	A	217	Mus musculus	Mutation(s): 1  Gene Names: Ryr2
Find proteins for E9Q401 (Mus musculus) Go to UniProtKB:  E9Q401

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.21 Å
• R-Value Free: 0.275 
• R-Value Work: 0.223 
• Space Group: I 4₁

Unit Cell:

Length (Å)	Angle (°)
a = 112.211	α = 90.00
b = 112.211	β = 90.00
c = 36.773	γ = 90.00

Software Package:

Software Name	Purpose
PHASER	phasing
HKL-2000	data reduction
HKL-2000	data scaling
HKL-2000	data collection
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2009-08-09 
• Released Date: 2009-11-17 
• Deposition Author(s): Van Petegem, F., Lobo, P.A.

Revision History 

• Version 1.0: 2009-11-17
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Version format compliance