4C2V

Aurora B kinase in complex with the specific inhibitor Barasertib


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of Aurora B-Incenp in Complex with Barasertib Reveals a Potential Transinhibitory Mechanism

Sessa, F.Villa, F.

(2014) Acta Crystallogr.,Sect.F 70: 294

  • DOI: 10.1107/S2053230X14002118
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The Aurora family is a well conserved and well characterized group of serine-threonine kinases involved in the normal progression of mitosis. The deregulation of Aurora kinases impairs spindle assembly, checkpoint function and cell division. To date, ...

    The Aurora family is a well conserved and well characterized group of serine-threonine kinases involved in the normal progression of mitosis. The deregulation of Aurora kinases impairs spindle assembly, checkpoint function and cell division. To date, many small molecules that compete with ATP for binding to Aurora kinases have been developed and characterized. Here, the first structure of the Xenopus laevis Aurora B-INCENP complex bound to the clinically relevant small molecule barasertib was determined. The binding properties of this inhibitor to the Aurora B active site are analyzed and reported. An unexpected crystal-packing contact in the Aurora B-INCENP structure coordinated by an ATP analogue is also reported, in which the INCENP C-terminus occupies the substrate-binding region, resembling the protein kinase A inhibitory mechanism.


    Organizational Affiliation

    Department of Experimental Oncology, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AURORA KINASE B-A
A, B
285Xenopus laevisMutation(s): 0 
Gene Names: aurkb-a (airk2-a)
EC: 2.7.11.1
Find proteins for Q6DE08 (Xenopus laevis)
Go to UniProtKB:  Q6DE08
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
INNER CENTROMERE PROTEIN A
C, D
44Xenopus laevisMutation(s): 0 
Gene Names: incenp-a
Find proteins for O13024 (Xenopus laevis)
Go to UniProtKB:  O13024
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
YJA
Query on YJA

Download SDF File 
Download CCD File 
A, B
2-[5-[[7-[3-[ethyl(2-hydroxyethyl)amino]propoxy]quinazolin-4-yl]amino]-1H-pyrazol-3-yl]-N-(3-fluorophenyl)ethanamide
C26 H30 F N7 O3
QYZOGCMHVIGURT-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
A, B
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
YJAIC50: 1 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.167 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 46.065α = 90.00
b = 68.101β = 96.65
c = 117.087γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
XDSdata reduction
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2013-08-20 
  • Released Date: 2014-02-26 
  • Deposition Author(s): Sessa, F., Villa, F.

Revision History 

  • Version 1.0: 2014-02-26
    Type: Initial release
  • Version 1.1: 2014-03-12
    Type: Database references
  • Version 1.2: 2014-03-19
    Type: Database references