6TEW

Crystal structure of human protein kinase CK2alpha' (CSNK2A2 gene product) in complex with the 2-aminothiazole-type inhibitor 27


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.08 Å
  • R-Value Free: 0.169 
  • R-Value Work: 0.146 
  • R-Value Observed: 0.146 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Structural and Mechanistic Basis of the Inhibitory Potency of Selected 2-Aminothiazole Compounds on Protein Kinase CK2.

Lindenblatt, D.Nickelsen, A.Applegate, V.M.Jose, J.Niefind, K.

(2020) J Med Chem 63: 7766-7772

  • DOI: https://doi.org/10.1021/acs.jmedchem.0c00587
  • Primary Citation of Related Structures:  
    6TE2, 6TEI, 6TEW, 6TGU

  • PubMed Abstract: 

    Selective inhibitors of protein kinase CK2 with significant cytotoxicity on tumor cells based on a 2-aminothiazole scaffold were described recently. Here, these studies are supplemented with representative CK2α/CK2α' complex structures. They reveal that the 2-aminothiazole-based inhibitors occupy the ATP cavity, whereas preliminary data had indicated an allosteric binding site. The crystal structure findings are corroborated by subsequent enzyme kinetic studies; their atomic-resolution quality provides the basis for future optimization of these promising CK2 inhibitors.


  • Organizational Affiliation

    Department für Chemie, Institut für Biochemie, Universität zu Köln, Zülpicher Str. 47, D-50674 Köln, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Casein kinase II subunit alpha'364Homo sapiensMutation(s): 1 
Gene Names: CSNK2A2CK2A2
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for P19784 (Homo sapiens)
Explore P19784 
Go to UniProtKB:  P19784
PHAROS:  P19784
GTEx:  ENSG00000070770 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP19784
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
N5Q BindingDB:  6TEW Ki: 86 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.08 Å
  • R-Value Free: 0.169 
  • R-Value Work: 0.146 
  • R-Value Observed: 0.146 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.108α = 113.549
b = 47.38β = 90.285
c = 50.27γ = 91.185
Software Package:
Software NamePurpose
XDSdata reduction
autoPROCdata scaling
Arcimboldophasing
PHENIXrefinement

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanyNI 643/4-2

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-08
    Type: Initial release
  • Version 1.1: 2020-08-05
    Changes: Database references, Refinement description
  • Version 1.2: 2024-05-15
    Changes: Data collection, Database references