1DS5

DIMERIC CRYSTAL STRUCTURE OF THE ALPHA SUBUNIT IN COMPLEX WITH TWO BETA PEPTIDES MIMICKING THE ARCHITECTURE OF THE TETRAMERIC PROTEIN KINASE CK2 HOLOENZYME.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.16 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structure of the complex of Zea mays alpha subunit with a fragment of human beta subunit provides the clue to the architecture of protein kinase CK2 holoenzyme.

Battistutta, R.Sarno, S.De Moliner, E.Marin, O.Issinger, O.G.Zanotti, G.Pinna, L.A.

(2000) Eur.J.Biochem. 267: 5184-5190


  • PubMed Abstract: 
  • The crystal structure of a complex between the catalytic alpha subunit of Zea mays CK2 and a 23-mer peptide corresponding the C-terminal sequence 181-203 of the human CK2 regulatory beta subunit has been determined at 3.16-A resolution. The complex, ...

    The crystal structure of a complex between the catalytic alpha subunit of Zea mays CK2 and a 23-mer peptide corresponding the C-terminal sequence 181-203 of the human CK2 regulatory beta subunit has been determined at 3.16-A resolution. The complex, composed of two alpha chains and two peptides, presents a molecular twofold axis, with each peptide interacting with both alpha chains. In the derived model of the holoenzyme, the regulatory subunits are positioned on the opposite side with respect to the opening of the catalytic sites, that remain accessible to substrates and cosubstrates. The beta subunit can influence the catalytic activity both directly and by promoting the formation of the alpha2 dimer, in which each alpha chain interacts with the active site of the other. Furthermore, the two active sites are so close in space that they can simultaneously bind and phosphorylate two phosphoacceptor residues of the same substrate.


    Related Citations: 
    • Crystal Structure of the Catalytic Subunit of Protein Kinase CK2 from Zea mays at 2.1 A Resolution
      Niefind, K.,Guerra, B.,Pinna, L.A.,Issinger, O.G.,Schomburg, D.
      (1998) Embo J. 17: 2451


    Organizational Affiliation

    Department of Organic Chemistry and CNR Biopolymer Research Center, University of Padova, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CASEIN KINASE, ALPHA CHAIN
A, B, C, D
332Zea maysGene Names: ACK2
EC: 2.7.11.1
Find proteins for P28523 (Zea mays)
Go to UniProtKB:  P28523
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CASEIN KINASE, BETA CHAIN
E, F, G, H
23Homo sapiensGene Names: CSNK2B (CK2N, G5A)
Find proteins for P67870 (Homo sapiens)
Go to Gene View: CSNK2B
Go to UniProtKB:  P67870
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
B, D
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
AMP
Query on AMP

Download SDF File 
Download CCD File 
A, B, C, D
ADENOSINE MONOPHOSPHATE
C10 H14 N5 O7 P
UDMBCSSLTHHNCD-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.16 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.214 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 87.681α = 90.00
b = 119.846β = 90.00
c = 145.560γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-01-07
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance