4ZTS

Human Aurora A catalytic domain bound to FK1142

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 

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Ligand Structure Quality Assessment 


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Literature

Discovery of a Selective Aurora A Kinase Inhibitor by Virtual Screening.

Kilchmann, F., Marcaida, M.J., Kotak, S., Schick, T., Boss, S.D., Awale, M., Gonczy, P., Reymond, J.L.

(2016) J Med Chem 59: 7188-7211

  • DOI: 10.1021/acs.jmedchem.6b00709
  • Primary Citation of Related Structures:  
    4ZS0, 4ZTQ, 4ZTR, 4ZTS

  • PubMed Abstract: 

    • Here we report the discovery of a selective inhibitor of Aurora A, a key regulator of cell division and potential anticancer target. We used the atom category extended ligand overlap score (xLOS), a 3D ligand-based virtual screening method recently developed in our group, to select 437 shape and pharmacophore analogs of reference kinase inhibitors ...

    Here we report the discovery of a selective inhibitor of Aurora A, a key regulator of cell division and potential anticancer target. We used the atom category extended ligand overlap score (xLOS), a 3D ligand-based virtual screening method recently developed in our group, to select 437 shape and pharmacophore analogs of reference kinase inhibitors. Biochemical screening uncovered two inhibitor series with scaffolds unprecedented among kinase inhibitors. One of them was successfully optimized by structure-based design to a potent Aurora A inhibitor (IC50 = 2 nM) with very high kinome selectivity for Aurora kinases. This inhibitor locks Aurora A in an inactive conformation and disrupts binding to its activator protein TPX2, which impairs Aurora A localization at the mitotic spindle and induces cell division defects. This phenotype can be rescued by inhibitor-resistant Aurora A mutants. The inhibitor furthermore does not induce Aurora B specific effects in cells.

    Organizational Affiliation: 

    Department of Chemistry and Biochemistry, National Center of Competence in Research NCCR Chemical Biology and NCCR TransCure, University of Berne , Freiestrasse 3, 3012 Berne, Switzerland.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Aurora kinase AA285Homo sapiensMutation(s): 0 
Gene Names: AURKA, AIK, AIRK1, ARK1, AURA, AYK1, BTAK, IAK1, STK15, STK6
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for O14965 (Homo sapiens)
Explore O14965 
Go to UniProtKB:  O14965
PHAROS:  O14965
GTEx:  ENSG00000087586 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO14965
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
4RK
Query on 4RK
Download Ideal Coordinates CCD File 
B [auth A](2Z,5Z)-2-[(4-ethylphenyl)imino]-3-methyl-5-[(2-{[4-(1H-tetrazol-5-yl)phenyl]amino}pyridin-4-yl)methylidene]-1,3-thiazolidin-4-one
C25 H22 N8 O S
WWPZBBQLQAEXGE-ZMSDRGEISA-N		 Ligand Interaction
MPD
Query on MPD
Download Ideal Coordinates CCD File 
C [auth A](4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
4RK BindingDB:  4ZTS IC50: 25 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.38α = 90
b = 82.38β = 90
c = 188.59γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Swiss National Science FoundationSwitzerlandPMPDP3_139609
Swiss National Science FoundationSwitzerland51AU40_125781

Revision History  (Full details and data files)

  • Version 1.0: 2016-07-20
    Type: Initial release
  • Version 1.1: 2016-08-24
    Changes: Database references
  • Version 1.2: 2017-09-13
    Changes: Author supporting evidence