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 
  • R-Value Observed: 0.134 

wwPDB Validation   3D Report Full Report


This is version 1.3 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
  • Primary Citation of Related Structures:  
    1QH4

  • 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 compartment-specific isoforms ...

    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: 
    • 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 U S A 95: 8449
    • Structure of Mitochondrial Creatine Kinase.
      Fritz-Wolf, K., Schnyder, T., Wallimann, T., Kabsch, W.
      (1996) Nature 381: 341

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CREATINE KINASEA, B, C, D380Gallus gallusMutation(s): 0 
Gene Names: EMBL-NR. X03509CKB
EC: 2.7.3.2
UniProt
Find proteins for P05122 (Gallus gallus)
Explore P05122 
Go to UniProtKB:  P05122
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP05122
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.41 Å
  • R-Value Free: 0.188 
  • R-Value Observed: 0.134 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.43α = 90
b = 175.99β = 95.85
c = 95.4γ = 90
Software Package:
Software NamePurpose
SHELXL-97refinement
CNSrefinement
SHELXL-97model building
AMoREphasing
XDSdata reduction
XDSdata scaling
CNSphasing
SHELXL-97phasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-11-19
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-07-24
    Changes: Data collection, Refinement description