3W8H

Crystal structure of CCM3 in complex with the C-terminal regulatory domain of STK25


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.43 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.212 

wwPDB Validation 3D Report Full Report



Literature

Structural Basis for the Unique Heterodimeric Assembly between Cerebral Cavernous Malformation 3 and Germinal Center Kinase III.

Xu, X.Wang, X.Zhang, Y.Wang, D.C.Ding, J.

(2013) Structure 21: 1059-1066

  • DOI: 10.1016/j.str.2013.04.007
  • Primary Citation of Related Structures:  
    3W8H, 3W8I

  • PubMed Abstract: 
  • Defects in cerebral cavernous malformation protein CCM3 result in cerebral cavernous malformation (CCM), a common vascular lesion of the human CNS. CCM3 functions as an adaptor protein that interacts with various signal proteins. Among these partner ...

    Defects in cerebral cavernous malformation protein CCM3 result in cerebral cavernous malformation (CCM), a common vascular lesion of the human CNS. CCM3 functions as an adaptor protein that interacts with various signal proteins. Among these partner proteins, germinal center kinase III (GCKIII) proteins have attracted significant interest because GCKIII-CCM3 interactions play essential roles in vascular physiology. Here, we report the crystal structures of CCM3 in complex with the C-terminal regulatory domains of GCKIII (GCKIIIct) at 2.4 Å resolution. Our results reveal that GCKIIIct adopts a fold closely resembling that of the CCM3 N-terminal dimeric domain. GCKIIIct heterodimerizes with CCM3 in a manner analogous to CCM3 homodimerization. The remarkable structural rearrangement of CCM3 induced by GCKIIIct binding and the ensuing interactions within CCM3 are characterized as the structural determinants for GCKIIIct-CCM3 heterodimerization. Taken together, these findings provide a precise structural basis for GCKIIIct-CCM3 heterodimerization and the functional performance of GCKIII mediated by CCM3.


    Organizational Affiliation

    Institute of Biophysics, Chinese Academy of Sciences, National Laboratory of Biomacromolecules, Beijing 100101, People's Republic of China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Programmed cell death protein 10A213Homo sapiensMutation(s): 0 
Gene Names: CCM3PDCD10TFAR15
Find proteins for Q9BUL8 (Homo sapiens)
Explore Q9BUL8 
Go to UniProtKB:  Q9BUL8
NIH Common Fund Data Resources
PHAROS  Q9BUL8
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase 25B78Homo sapiensMutation(s): 0 
Gene Names: SOK1STK25YSK1
EC: 2.7.11.1
Find proteins for O00506 (Homo sapiens)
Explore O00506 
Go to UniProtKB:  O00506
NIH Common Fund Data Resources
PHAROS  O00506
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.43 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.212 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.56α = 90
b = 68.56β = 90
c = 229.27γ = 120
Software Package:
Software NamePurpose
CrystalCleardata collection
PHASERphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-03
    Type: Initial release