Crystal structure of mouse Aurora A (Asn186->Gly, Lys240->Arg, Met302->Leu) in complex with 1-{5-[2-(thieno[3,2-d]pyrimidin-4-ylamino)-ethyl]- thiazol-2-yl}-3-(3-trifluoromethyl-phenyl)-urea

Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.213 

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This is version 1.4 of the entry. See complete history


Discovery of a potent and selective aurora kinase inhibitor.

Oslob, J.D.Romanowski, M.J.Allen, D.A.Baskaran, S.Bui, M.Elling, R.A.Flanagan, W.M.Fung, A.D.Hanan, E.J.Harris, S.Heumann, S.A.Hoch, U.Jacobs, J.W.Lam, J.Lawrence, C.E.McDowell, R.S.Nannini, M.A.Shen, W.Silverman, J.A.Sopko, M.M.Tangonan, B.T.Teague, J.Yoburn, J.C.Yu, C.H.Zhong, M.Zimmerman, K.M.O'Brien, T.Lew, W.

(2008) Bioorg Med Chem Lett 18: 4880-4884

  • DOI: https://doi.org/10.1016/j.bmcl.2008.07.073
  • Primary Citation of Related Structures:  
    3D14, 3D15

  • PubMed Abstract: 

    This communication describes the discovery of a novel series of Aurora kinase inhibitors. Key SAR and critical binding elements are discussed. Some of the more advanced analogues potently inhibit cellular proliferation and induce phenotypes consistent with Aurora kinase inhibition. In particular, compound 21 (SNS-314) is a potent and selective Aurora kinase inhibitor that exhibits significant activity in pre-clinical in vivo tumor models.

  • Organizational Affiliation

    Medicinal Chemistry, Sunesis Pharmaceuticals, 395 Oyster Point Boulevard, South San Francisco, CA 94080, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
serine/threonine kinase 6272Mus musculusMutation(s): 3 
Gene Names: AurkaStk6
UniProt & NIH Common Fund Data Resources
Find proteins for P97477 (Mus musculus)
Explore P97477 
Go to UniProtKB:  P97477
IMPC:  MGI:894678
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP97477
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on AK1

Download Ideal Coordinates CCD File 
B [auth A]1-{5-[2-(thieno[3,2-d]pyrimidin-4-ylamino)ethyl]-1,3-thiazol-2-yl}-3-[3-(trifluoromethyl)phenyl]urea
C19 H15 F3 N6 O S2
Binding Affinity Annotations 
IDSourceBinding Affinity
AK1 PDBBind:  3D14 IC50: 22 (nM) from 1 assay(s)
Binding MOAD:  3D14 IC50: 22 (nM) from 1 assay(s)
BindingDB:  3D14 IC50: min: 22, max: 22 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.213 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.363α = 90
b = 82.363β = 90
c = 174.398γ = 120
Software Package:
Software NamePurpose
CrystalCleardata collection
CrystalCleardata reduction
d*TREKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-08-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2013-06-19
    Changes: Database references
  • Version 1.3: 2021-10-20
    Changes: Database references, Derived calculations
  • Version 1.4: 2023-08-30
    Changes: Data collection, Refinement description