2BDW

Crystal Structure of the Auto-Inhibited Kinase Domain of Calcium/Calmodulin Activated Kinase II


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the Autoinhibited Kinase Domain of CaMKII and SAXS Analysis of the Holoenzyme

Rosenberg, O.S.Deindl, S.Sung, R.-J.Nairn, A.C.Kuriyan, J.

(2005) Cell 123: 849-860

  • DOI: 10.1016/j.cell.2005.10.029
  • Primary Citation of Related Structures:  
    2BDW

  • PubMed Abstract: 
  • Ca2+/calmodulin-dependent protein kinase-II (CaMKII) is unique among protein kinases for its dodecameric assembly and its complex response to Ca2+. The crystal structure of the autoinhibited kinase domain of CaMKII, determined at 1.8 A resolution, re ...

    Ca2+/calmodulin-dependent protein kinase-II (CaMKII) is unique among protein kinases for its dodecameric assembly and its complex response to Ca2+. The crystal structure of the autoinhibited kinase domain of CaMKII, determined at 1.8 A resolution, reveals an unexpected dimeric organization in which the calmodulin-responsive regulatory segments form a coiled-coil strut that blocks peptide and ATP binding to the otherwise intrinsically active kinase domains. A threonine residue in the regulatory segment, which when phosphorylated renders CaMKII calmodulin independent, is held apart from the catalytic sites by the organization of the dimer. This ensures a strict Ca2+ dependence for initial activation. The structure of the kinase dimer, when combined with small-angle X-ray scattering data for the holoenzyme, suggests that inactive CaMKII forms tightly packed autoinhibited assemblies that convert upon activation into clusters of loosely tethered and independent kinase domains.


    Organizational Affiliation

    Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Hypothetical protein K11E8.1dAB362Caenorhabditis elegansMutation(s): 1 
Gene Names: Ca2+/calmodulin-dependent protein kinaseunc-43K11E8.1
EC: 2.7.11.17
Find proteins for O62305 (Caenorhabditis elegans)
Explore O62305 
Go to UniProtKB:  O62305
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.121α = 90
b = 77.104β = 96.74
c = 119.52γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
PHASERphasing
CNSrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-12-13
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance