1CKI

RECOMBINANT CASEIN KINASE I DELTA TRUNCATION MUTANT CONTAINING RESIDUES 1-317


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Three-dimensional structure of mammalian casein kinase I: molecular basis for phosphate recognition.

Longenecker, K.L.Roach, P.J.Hurley, T.D.

(1996) J Mol Biol 257: 618-631

  • DOI: 10.1006/jmbi.1996.0189
  • Primary Citation of Related Structures:  
    1CKJ, 1CKI

  • PubMed Abstract: 
  • The three-dimensional structure for the catalytic region of the mammalian protein kinase, casein kinase I delta (CKI delta), has been solved by X-ray crystallography to a resolution of 2.3 A. A truncation mutant of CKI delta lacking the C-terminal au ...

    The three-dimensional structure for the catalytic region of the mammalian protein kinase, casein kinase I delta (CKI delta), has been solved by X-ray crystallography to a resolution of 2.3 A. A truncation mutant of CKI delta lacking the C-terminal autoinhibitory region was expressed in Escherichia coli, purified, and crystallized. The structure was solved by molecular replacement using the crystal structure of the catalytic domain of a CKI homolog from Schizosaccharomyces pombe, Cki1. A tungstate derivative confirmed the initial molecular replacement solution and identified an anion binding site which may contribute to the unique substrate specificity of CKI. Like other protein kinases, the catalytic domain of CKI is composed of two lobes with a cleft between them for binding ATP. Comparison of the mammalian and yeast CKI structures suggests that a rotation of the N-terminal domain occurs upon ATP binding. This domain motion is similar, but not identical, to that observed in cAMP-dependent protein kinase upon binding ATP. Although Cki1 has many similarities to CKI delta over the catalytic domain, these two forms of CKI likely perform different functions in vivo. Relating the primary sequences of other CKI enzymes to the three-dimensional architecture of CKI delta reveals a catalytic face that is especially conserved among the subset of CKI family members associated with the regulation of DNA repair.


    Related Citations: 
    • Crystal Structure of Casein Kinase-1, a Phosphate-Directed Protein Kinase
      Xu, R., Carmel, G., Sweet, R.M., Kuret, J., Cheng, X.
      (1995) EMBO J 14: 1015
    • Molecular Cloning, Expression, and Characterization of a 49-Kilodalton Casein Kinase I Isoform from Rat Testis
      Graves, P.R., Haas, D.W., Hagedorn, C.H., Depaoli-Roach, A.A., Roach, P.J.
      (1993) J Biol Chem 268: 6394

    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, 46202, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CASEIN KINASE I DELTAA, B317Rattus norvegicusMutation(s): 0 
Gene Names: T7Csnk1dHckid
EC: 2.7.1 (PDB Primary Data), 2.7.11.1 (UniProt), 2.7.11.26 (UniProt)
Find proteins for Q06486 (Rattus norvegicus)
Explore Q06486 
Go to UniProtKB:  Q06486
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 106.84α = 90
b = 115.47β = 90
c = 60.6γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
R-AXISdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-12-07
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance