7A04

Structure of human CKa1 in complex with compound b


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.193 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Synthesis, biological evaluation, in silico modeling and crystallization of novel small monocationic molecules with potent antiproliferative activity by dual mechanism.

Serran-Aguilera, L.Mariotto, E.Rubbini, G.Castro Navas, F.F.Marco, C.Carrasco-Jimenez, M.P.Ballarotto, M.Macchiarulo, A.Hurtado-Guerrero, R.Viola, G.Lopez-Cara, L.C.

(2020) Eur J Med Chem 207: 112797-112797

  • DOI: https://doi.org/10.1016/j.ejmech.2020.112797
  • Primary Citation of Related Structures:  
    7A04, 7A06

  • PubMed Abstract: 

    Seeking for new anticancer drugs with strong antiproliferative activity and simple molecular structure, we designed a novel series of compounds based on our previous reported pharmacophore model composed of five moieties. Antiproliferative assays on four tumoral cell lines and evaluation of Human Choline Kinase CKα1 enzymatic activity was performed for these compounds. Among tested molecules, those ones with biphenyl spacer showed betters enzymatic and antiproliferative activities (n-v). Docking and crystallization studies validate the hypothesis and confirm the results. The most active compound (t) induces a significant arrest of the cell cycle in G0/G1 phase that ultimately lead to apoptosis, following the mitochondrial pathway, as demonstrated for other choline kinase inhibitors. However additional assays reveal that the inhibition of choline uptake could also be involved in the antiproliferative outcome of this class of compounds.


  • Organizational Affiliation

    Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, Campus Cartuja S/n. University of Granada, 18010, Granada, Spain.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Choline kinase alpha
A, B
383Homo sapiensMutation(s): 0 
Gene Names: CHKACHKCKI
EC: 2.7.1.32 (PDB Primary Data), 2.7.1.82 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P35790 (Homo sapiens)
Explore P35790 
Go to UniProtKB:  P35790
PHAROS:  P35790
GTEx:  ENSG00000110721 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP35790
Sequence Annotations
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 55.666α = 90
b = 118.771β = 90
c = 130.998γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-09
    Type: Initial release
  • Version 1.1: 2020-10-14
    Changes: Database references
  • Version 1.2: 2024-01-31
    Changes: Advisory, Data collection, Database references, Refinement description