1QH4

CRYSTAL STRUCTURE OF CHICKEN BRAIN-TYPE CREATINE KINASE AT 1.41 ANGSTROM RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of brain-type creatine kinase at 1.41 A resolution.

Eder, M.Schlattner, U.Becker, A.Wallimann, T.Kabsch, W.Fritz-Wolf, K.

(1999) Protein Sci. 8: 2258-2269

  • DOI: 10.1110/ps.8.11.2258

  • PubMed Abstract: 
  • Excitable cells and tissues like muscle or brain show a highly fluctuating consumption of ATP, which is efficiently regenerated from a large pool of phosphocreatine by the enzyme creatine kinase (CK). The enzyme exists in tissue--as well as compartme ...

    Excitable cells and tissues like muscle or brain show a highly fluctuating consumption of ATP, which is efficiently regenerated from a large pool of phosphocreatine by the enzyme creatine kinase (CK). The enzyme exists in tissue--as well as compartment-specific isoforms. Numerous pathologies are related to the CK system: CK is found to be overexpressed in a wide range of solid tumors, whereas functional impairment of CK leads to a deterioration in energy metabolism, which is phenotypic for many neurodegenerative and age-related diseases. The crystal structure of chicken cytosolic brain-type creatine kinase (BB-CK) has been solved to 1.41 A resolution by molecular replacement. It represents the most accurately determined structure in the family of guanidino kinases. Except for the N-terminal region (2-12), the structures of both monomers in the biological dimer are very similar and closely resemble those of the other known structures in the family. Specific Ca2+-mediated interactions, found between two dimers in the asymmetric unit, result in structurally independent heterodimers differing in their N-terminal conformation and secondary structure. The high-resolution structure of BB-CK presented in this work will assist in designing new experiments to reveal the molecular basis of the multiple isoform-specific properties of CK, especially regarding different subcellular locations and functional interactions with other proteins. The rather similar fold shared by all known guanidino kinase structures suggests a model for the transition state complex of BB-CK analogous to the one of arginine kinase (AK). Accordingly, we have modeled a putative conformation of CK in the transition state that requires a rigid body movement of the entire N-terminal domain by rms 4 A from the structure without substrates.


    Related Citations: 
    • Structure of Mitochondrial Creatine Kinase.
      Fritz-Wolf, K.,Schnyder, T.,Wallimann, T.,Kabsch, W.
      (1996) Nature 381: 341
    • Transition State Structure of Arginine Kinase: Implications for Catalysis of Bimolecular Reactions
      Zhou, G.,Somasundaram, T.,Blanc, E.,Parthasarathy, G.,Ellington, W.R.,Chapman, M.S.
      (1998) Proc.Natl.Acad.Sci.USA 95: 8449


    Organizational Affiliation

    Institute of Cell Biology, Swiss Federal Institute of Technology, ETH Zurich, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CREATINE KINASE
A, B, C, D
380Gallus gallusMutation(s): 0 
Gene Names: CKB
EC: 2.7.3.2
Find proteins for P05122 (Gallus gallus)
Go to Gene View: CKB
Go to UniProtKB:  P05122
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

Download SDF File 
Download CCD File 
A, B, C, D
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
D
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free: 0.188 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 48.430α = 90.00
b = 175.990β = 95.85
c = 95.400γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
XDSdata scaling
CNSphasing
SHELXL-97refinement
XDSdata reduction
CNSrefinement
SHELXL-97phasing
SHELXL-97model building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-11-19
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance