3DRE

Crystal structure of Human Brain-type Creatine Kinase

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.225 

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This is version 1.2 of the entry. See complete history. 


Literature

Structural studies of human brain-type creatine kinase complexed with the ADP-Mg2+-NO3- -creatine transition-state analogue complex

Bong, S.M., Moon, J.H., Nam, K.H., Lee, K.S., Chi, Y.M., Hwang, K.Y.

(2008) FEBS Lett 582: 3959-3965

  • DOI: 10.1016/j.febslet.2008.10.039
  • Primary Citation of Related Structures:  
    3B6R, 3DRB, 3DRE

  • PubMed Abstract: 

    • Creatine kinase is a member of the phosphagen kinase family, which catalyzes the reversible phosphoryl transfer reaction that occurs between ATP and creatine to produce ADP and phosphocreatine. Here, three structural aspects of human-brain-type-creatine-kinase (hBB-CK) were identified by X-ray crystallography: the ligand-free-form at 2 ...

    Creatine kinase is a member of the phosphagen kinase family, which catalyzes the reversible phosphoryl transfer reaction that occurs between ATP and creatine to produce ADP and phosphocreatine. Here, three structural aspects of human-brain-type-creatine-kinase (hBB-CK) were identified by X-ray crystallography: the ligand-free-form at 2.2A; the ADP-Mg2+, nitrate, and creatine complex (transition-state-analogue complex; TSAC); and the ADP-Mg2+-complex at 2.0A. The structures of ligand-bound hBB-CK revealed two different monomeric states in a single homodimer. One monomer is a closed form, either bound to TSAC or the ADP-Mg2+-complex, and the second monomer is an unliganded open form. These structural studies provide a detailed mechanism indicating that the binding of ADP-Mg2+ alone may trigger conformational changes in hBB-CK that were not observed with muscle-type-CK.

    Organizational Affiliation: 

    Division of Biotechnology, College of Life Sciences, Korea University, Seoul 136-713, Republic of Korea.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Creatine kinase B-typeA, B381Homo sapiensMutation(s): 0 
Gene Names: CKB, CKBB
EC: 2.7.3.2
UniProt & NIH Common Fund Data Resources
Find proteins for P12277 (Homo sapiens)
Explore P12277 
Go to UniProtKB:  P12277
PHAROS:  P12277
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP12277
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.225 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.963α = 90
b = 97.963β = 90
c = 164.312γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-03-17
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Refinement description