6TGU

Crystal structure of human protein kinase CK2alpha'(CSNK2A2 gene product) in complex with the 2-aminothiazole-type inhibitor Cl-OH-3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.83 Å
  • R-Value Free: 0.167 
  • R-Value Work: 0.144 
  • R-Value Observed: 0.144 

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Ligand Structure Quality Assessment 


This is version 1.1 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: 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 ...

    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.


    Related Citations: 
    • Diacritic Binding of an Indenoindole Inhibitor by CK2a Paralogs Explored by a Reliable Path to Atomic Resolution CK2a' Structures.
      Lindenblatt, D., Nickelsen, A., Applegate, V.M., Hochscherf, J., Witulski, B., Bouaziz, Z., Marminon, C., Bretner, M., Le Borgne, M., Jose, J., Niefind, K.
      (2019) ACS Omega 4: 5471

    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
MoleculeChainsSequence LengthOrganismDetailsImage
Casein kinase II subunit alpha'A364Homo 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
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
N92 (Subject of Investigation/LOI)
Query on N92

Download Ideal Coordinates CCD File 
B [auth A]4-[[4-(4-chlorophenyl)-1,3-thiazol-2-yl]amino]-2-oxidanyl-benzoic acid
C16 H11 Cl N2 O3 S
NSPLXNBEHSXYHJ-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.83 Å
  • R-Value Free: 0.167 
  • R-Value Work: 0.144 
  • R-Value Observed: 0.144 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.288α = 66.797
b = 47.532β = 90.282
c = 50.403γ = 89.594
Software Package:
Software NamePurpose
XDSdata reduction
autoPROCdata scaling
Arcimboldophasing
PHENIXrefinement

Structure Validation

View Full Validation Report



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