6GIH

Crystal Structure of CK2alpha with CAM187 bound


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.96 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.180 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Novel non-ATP competitive small molecules targeting the CK2 alpha / beta interface.

Brear, P.North, A.Iegre, J.Hadje Georgiou, K.Lubin, A.Carro, L.Green, W.Sore, H.F.Hyvonen, M.Spring, D.R.

(2018) Bioorg. Med. Chem. 26: 3016-3020

  • DOI: 10.1016/j.bmc.2018.05.011
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Increased CK2 levels are prevalent in many cancers. Combined with the critical role CK2 plays in many cell-signaling pathways, this makes it a prime target for down regulation to fight tumour growth. Herein, we report a fragment-based approach to inh ...

    Increased CK2 levels are prevalent in many cancers. Combined with the critical role CK2 plays in many cell-signaling pathways, this makes it a prime target for down regulation to fight tumour growth. Herein, we report a fragment-based approach to inhibiting the interaction between CK2α and CK2β at the α-β interface of the holoenzyme. A fragment, CAM187, with an IC 50 of 44 μM and a molecular weight of only 257 gmol -1 has been identified as the most promising compound. Importantly, the lead fragment only bound at the interface and was not observed in the ATP binding site of the protein when co-crystallised with CK2α. The fragment-like molecules discovered in this study represent unique scaffolds to CK2 inhibition and leave room for further optimisation.


    Organizational Affiliation

    Department of Biochemistry, University of Cambridge, Sanger Building, 80 Tennis Court Road, Old Addenbrooke's Site, Cambridge CB2 1GA, UK.,Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.,Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK. Electronic address: spring@ch.cam.ac.uk.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Casein kinase II subunit alpha
A
328Homo sapiensMutation(s): 4 
Gene Names: CSNK2A1 (CK2A1)
EC: 2.7.11.1
Find proteins for P68400 (Homo sapiens)
Go to Gene View: CSNK2A1
Go to UniProtKB:  P68400
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

Download SDF File 
Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
EZN
Query on EZN

Download SDF File 
Download CCD File 
A
[3-chloranyl-5-(1~{H}-indol-4-yl)phenyl]methanamine
C15 H13 Cl N2
MTQLCOHSTAREMM-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.96 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.180 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 59.488α = 90.00
b = 45.117β = 111.23
c = 62.889γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
BUSTERrefinement
SHELXPREPdata scaling
PHASERphasing
XPREPdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom090340/Z/09/Z
Wellcome TrustUnited Kingdom107714/Z/15/Z

Revision History 

  • Version 1.0: 2018-05-23
    Type: Initial release
  • Version 1.1: 2018-06-20
    Type: Data collection, Database references