1AJ5

CALPAIN DOMAIN VI APO


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of a calpain Ca(2+)-binding domain reveals a novel EF-hand and Ca(2+)-induced conformational changes.

Blanchard, H.Grochulski, P.Li, Y.Arthur, J.S.Davies, P.L.Elce, J.S.Cygler, M.

(1997) Nat.Struct.Mol.Biol. 4: 532-538

  • Primary Citation of Related Structures:  1DVI

  • PubMed Abstract: 
  • The crystal structure of a Ca(2+)-binding domain (dVI) of rat m-calpain has been determined at 2.3 A resolution, both with and without bound Ca2+. The structures reveal a unique fold incorporating five EF-hand motifs per monomer, three of which bind ...

    The crystal structure of a Ca(2+)-binding domain (dVI) of rat m-calpain has been determined at 2.3 A resolution, both with and without bound Ca2+. The structures reveal a unique fold incorporating five EF-hand motifs per monomer, three of which bind calcium at physiological calcium concentrations, with one showing a novel EF-hand coordination pattern. This investigation gives us a first view of the calcium-induced conformational changes, and consequently an insight into the mechanism of calcium induced activation in calpain. The crystal structures reveal a dVI homodimer which provides a preliminary model for the subunit dimerization in calpain.


    Related Citations: 
    • Ca(2+)-Binding Domain Vi of Rat Calpain is a Homodimer in Solution: Hydrodynamic, Crystallization and Preliminary X-Ray Diffraction Studies
      Blanchard, H.,Li, Y.,Cygler, M.,Kay, C.M.,Arthur, J.S.,Davies, P.L.,Elce, J.S.
      (1996) Protein Sci. 5: 535
    • Active Recombinant Rat Calpain II. Bacterially Produced Large and Small Subunits Associate Both in Vivo and in Vitro
      Graham-Siegenthaler, K.,Gauthier, S.,Davies, P.L.,Elce, J.S.
      (1994) J.Biol.Chem. 269: 30457


    Organizational Affiliation

    Biotechnology Research Institute, NRC, Montréal, Québec, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CALPAIN
A, B
173Rattus norvegicusGene Names: Capns1 (Capn4, Css1)
Find proteins for Q64537 (Rattus norvegicus)
Go to UniProtKB:  Q64537
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.220 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 67.500α = 90.00
b = 73.000β = 90.00
c = 156.100γ = 90.00
Software Package:
Software NamePurpose
PHASESphasing
DENZOdata reduction
X-PLORphasing
X-PLORmodel building
SCALEPACKdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-05-20
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2012-05-02
    Type: Structure summary