1NA7

Crystal structure of the catalytic subunit of human protein kinase CK2

• PDB DOI: https://doi.org/10.2210/pdb1NA7/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2002-11-27 Released: 2003-08-26 
• Deposition Author(s): Pechkova, E., Zanotti, G., Nicolini, C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.273 
• R-Value Work: 0.209 
• R-Value Observed: 0.215 

Starting Model: experimental

Literature

Three-dimensional atomic structure of a catalytic subunit mutant of human protein kinase CK2.

Pechkova, E., Zanotti, G., Nicolini, C.

(2003) Acta Crystallogr D Biol Crystallogr 59: 2133-2139

• PubMed: 14646071 
• DOI: https://doi.org/10.1107/s0907444903018900
• Primary Citation of Related Structures:  
  1NA7


• PubMed Abstract: 
  

  The three-dimensional crystal structure of the triple-point mutant of the catalytic subunit of human protein kinase CK2alpha has been determined at 2.4 A resolution. Microcrystals of mutant CK2 catalytic subunit were obtained by a protein-crystallization method based on thin-film nanotechnology. These microcrystals (of about 20 micro m in diameter) were used for diffraction data collection by means of the microfocus beamline at the ESRF synchrotron. A comparison between the human protein kinase CK2alpha and the corresponding enzyme from a lower organism (Zea mays) is made.

---

Organizational Affiliation: 

Fondazione E.L.B.A., Rome, Italy.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 39.33 kDa 
• Atom Count: 2,848 
• Modelled Residue Count: 326 
• Deposited Residue Count: 329 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Casein kinase II, alpha chain	A	329	Homo sapiens	Mutation(s): 2  EC: 2.7.1.37 (PDB Primary Data), 2.7.11.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P68400 (Homo sapiens) Explore P68400  Go to UniProtKB:  P68400
PHAROS:  P68400 GTEx:  ENSG00000101266

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.273 
• R-Value Work: 0.209 
• R-Value Observed: 0.215 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.676	α = 90
b = 45.954	β = 111.82
c = 63.956	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing
CNS	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-08-26 
Deposition Author(s): Pechkova, E., Zanotti, G., Nicolini, C.

Revision History  

• Version 1.0: 2003-08-26
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-10-27
  Changes: Database references
• Version 1.4: 2023-08-16
  Changes: Data collection, Refinement description