1I0E

CRYSTAL STRUCTURE OF CREATINE KINASE FROM HUMAN MUSCLE

• PDB DOI: https://doi.org/10.2210/pdb1I0E/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2001-01-29 Released: 2003-04-01 
• Deposition Author(s): Shen, Y.-Q., Tang, L., Zhou, H.-M., Lin, Z.-J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.50 Å
• R-Value Free: 0.287 
• R-Value Work: 0.211 
• R-Value Observed: 0.211 

Literature

Structure of human muscle creatine kinase.

Shen, Y.Q., Tang, L., Zhou, H.M., Lin, Z.J.

(2001) Acta Crystallogr D Biol Crystallogr 57: 1196-1200

• PubMed: 11517911 
• DOI: https://doi.org/10.1107/s0907444901007703
• Primary Citation of Related Structures:  
  1I0E


• PubMed Abstract: 
  

  The crystal structure of human muscle creatine kinase has been determined by the molecular-replacement method and refined at 3.5A resolution. The structures of both the monomer and the dimer closely resemble those of the other known structures in the creatine kinase family. Two types of dimers, one with a non-crystallographic twofold symmetry axis and the other with a crystallographic twofold symmetry axis, were found to exist simultaneously in the crystal. These dimers form an infinite "double-helix"-like structure along an unusual long crystallographic 3(1) axis.

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Organizational Affiliation: 

National Laboratory of Biological Macromolecules, Institute of Biophysics, Academica Sinica, Beijing 100101, People's Republic of China.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors.

Biological Assembly 3  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 3 assigned by authors.

Biological Assembly 4  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 4 assigned by authors.

Macromolecule Content

• Total Structure Weight: 172.68 kDa 
• Atom Count: 11,608 
• Modelled Residue Count: 1,460 
• Deposited Residue Count: 1,524 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CREATINE KINASE,M CHAIN	A, B, C, D	381	Homo sapiens	Mutation(s): 0  EC: 2.7.3.2
UniProt & NIH Common Fund Data Resources
Find proteins for P06732 (Homo sapiens) Explore P06732  Go to UniProtKB:  P06732
PHAROS:  P06732 GTEx:  ENSG00000104879

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.50 Å
• R-Value Free: 0.287 
• R-Value Work: 0.211 
• R-Value Observed: 0.211 
• Space Group: P 3₁ 1 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.326	α = 90
b = 89.326	β = 90
c = 402.962	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-04-01 
Deposition Author(s): Shen, Y.-Q., Tang, L., Zhou, H.-M., Lin, Z.-J.

Revision History  

• Version 1.0: 2003-04-01
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-10-23
  Changes: Data collection, Database references
• Version 1.4: 2024-03-13
  Changes: Data collection, Database references
• Version 1.5: 2024-04-03
  Changes: Refinement description