1QF8

TRUNCATED FORM OF CASEIN KINASE II BETA SUBUNIT (2-182) FROM HOMO SAPIENS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.74 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of the human protein kinase CK2 regulatory subunit reveals its zinc finger-mediated dimerization.

Chantalat, L.Leroy, D.Filhol, O.Nueda, A.Benitez, M.J.Chambaz, E.M.Cochet, C.Dideberg, O.

(1999) EMBO J. 18: 2930-2940

  • DOI: 10.1093/emboj/18.11.2930

  • PubMed Abstract: 
  • Protein kinase CK2 is a tetramer composed of two alpha catalytic subunits and two beta regulatory subunits. The structure of a C-terminal truncated form of the human beta subunit has been determined by X-ray crystallography to 1.7 A resolution. One d ...

    Protein kinase CK2 is a tetramer composed of two alpha catalytic subunits and two beta regulatory subunits. The structure of a C-terminal truncated form of the human beta subunit has been determined by X-ray crystallography to 1.7 A resolution. One dimer is observed in the asymmetric unit of the crystal. The most striking feature of the structure is the presence of a zinc finger mediating the dimerization. The monomer structure consists of two domains, one entirely alpha-helical and one including the zinc finger. The dimer has a crescent shape holding a highly acidic region at both ends. We propose that this acidic region is involved in the interactions with the polyamines and/or catalytic subunits. Interestingly, conserved amino acid residues among beta subunit sequences are clustered along one linear ridge that wraps around the entire dimer. This feature suggests that protein partners may interact with the dimer through a stretch of residues in an extended conformation.


    Organizational Affiliation

    Laboratoire de Cristallographie Macromoléculaire, Institut de Biologie Structurale Jean-Pierre Ebel, CNRS/CEA, 41, rue Jules Horowitz, 38027 Grenoble Cedex 1, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CASEIN KINASE II
A, B
182Homo sapiensMutation(s): 0 
Gene 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
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.74 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.194 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 132.230α = 90.00
b = 132.230β = 90.00
c = 63.780γ = 90.00
Software Package:
Software NamePurpose
CCP4data scaling
MLPHAREphasing
CNSrefinement
TRUNCATEdata scaling
SOLOMONphasing
SCALAdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-04-19
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-04
    Type: Advisory, Refinement description