Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Dihedral - D6  (3D View)
Global Stoichiometry: Homo 12-mer - A12 

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

Macromolecule Content

• Total Structure Weight: 51.18 kDa 
• Atom Count: 3541 
• Modelled Residue Count: 436 
• Deposited Residue Count: 444 
• Unique protein chains: 1

3SOA

Full-length human CaMKII

• DOI: 10.2210/pdb3SOA/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2011-06-30 Released: 2011-08-31 
• Deposition Author(s): Chao, L.H., Kuriyan, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.55 Å
• R-Value Free: 0.327 
• R-Value Work: 0.273 
• R-Value Observed: 0.279 

Literature

A Mechanism for Tunable Autoinhibition in the Structure of a Human Ca(2+)/Calmodulin- Dependent Kinase II Holoenzyme.

Chao, L.H., Stratton, M.M., Lee, I.H., Rosenberg, O.S., Levitz, J., Mandell, D.J., Kortemme, T., Groves, J.T., Schulman, H., Kuriyan, J.

(2011) Cell 146: 732-745

• PubMed: 21884935 
• DOI: 10.1016/j.cell.2011.07.038
• Primary Citation of Related Structures:  
  3SOA


• PubMed Abstract: 
  

Calcium/calmodulin-dependent kinase II (CaMKII) forms a highly conserved dodecameric assembly that is sensitive to the frequency of calcium pulse trains. Neither the structure of the dodecameric assembly nor how it regulates CaMKII are known. We present the crystal structure of an autoinhibited full-length human CaMKII holoenzyme, revealing an unexpected compact arrangement of kinase domains docked against a central hub, with the calmodulin-binding sites completely inaccessible. We show that this compact docking is important for the autoinhibition of the kinase domains and for setting the calcium response of the holoenzyme. Comparison of CaMKII isoforms, which differ in the length of the linker between the kinase domain and the hub, demonstrates that these interactions can be strengthened or weakened by changes in linker length. This equilibrium between autoinhibited states provides a simple mechanism for tuning the calcium response without changes in either the hub or the kinase domains.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Calcium/calmodulin-dependent protein kinase type II subunit alpha with a beta 7 linker	A	444	Homo sapiens	Mutation(s): 3  Gene Names: CAMK2A, CAMKA, KIAA0968, camk2b, camkb EC: 2.7.11.17
Find proteins for Q9UQM7 (Homo sapiens) Explore Q9UQM7  Go to UniProtKB:  Q9UQM7
NIH Common Fund Data Resources
PHAROS:  Q9UQM7 GTEx:  ENSG00000070808

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DB8	A	4-[(2,4-dichloro-5-methoxyphenyl)amino]-6-methoxy-7-[3-(4-methylpiperazin-1-yl)propoxy]quinoline-3-carbonitrile C26 H29 Cl2 N5 O3 UBPYILGKFZZVDX-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
DB8	Kd:  4500   nM  BindingDB

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.55 Å
• R-Value Free: 0.327 
• R-Value Work: 0.273 
• R-Value Observed: 0.279 
• Space Group: P 6 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 155.72	α = 90
b = 155.72	β = 90
c = 106.16	γ = 120

Software Package:

Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
PHENIX	refinement
DENZO	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-06-30 
• Released Date: 2011-08-31 
Deposition Author(s): Chao, L.H., Kuriyan, J.

Revision History  

• Version 1.0: 2011-08-31
  Type: Initial release
  
• Version 1.1: 2011-09-07
  Changes: Non-polymer description, Structure summary
• Version 1.2: 2011-09-14
  Changes: Database references, Structure summary