4BYI

Aurora A kinase bound to a highly selective imidazopyridine inhibitor

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.227 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Aurora Isoform Selectivity: Design and Synthesis of Imidazo[4,5-B]Pyridine Derivatives as Highly Selective Inhibitors of Aurora-A Kinase in Cells.

Bavetsias, V., Faisal, A., Crumpler, S., Brown, N., Kosmopoulou, M., Joshi, A., Atrash, B., Perez-Fuertes, Y., Schmitt, J.A., Boxall, K.J., Burke, R., Sun, C., Avery, S., Bush, K., Henley, A., Raynaud, F.I., Workman, P., Bayliss, R., Linardopoulos, S., Blagg, J.

(2013) J.Med.Chem. 56: 9122

  • DOI: 10.1021/jm401115g
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • Aurora-A differs from Aurora-B/C at three positions in the ATP-binding pocket (L215, T217, and R220). Exploiting these differences, crystal structures of ligand-Aurora protein interactions formed the basis of a design principle for imidazo[4,5-b]pyri ...

    Aurora-A differs from Aurora-B/C at three positions in the ATP-binding pocket (L215, T217, and R220). Exploiting these differences, crystal structures of ligand-Aurora protein interactions formed the basis of a design principle for imidazo[4,5-b]pyridine-derived Aurora-A-selective inhibitors. Guided by a computational modeling approach, appropriate C7-imidazo[4,5-b]pyridine derivatization led to the discovery of highly selective inhibitors, such as compound 28c, of Aurora-A over Aurora-B. In HCT116 human colon carcinoma cells, 28c and 40f inhibited the Aurora-A L215R and R220K mutants with IC50 values similar to those seen for the Aurora-A wild type. However, the Aurora-A T217E mutant was significantly less sensitive to inhibition by 28c and 40f compared to the Aurora-A wild type, suggesting that the T217 residue plays a critical role in governing the observed isoform selectivity for Aurora-A inhibition. These compounds are useful small-molecule chemical tools to further explore the function of Aurora-A in cells.

    Organizational Affiliation: 

    Cancer Research UK Cancer Therapeutics Unit, Division of Cancer Therapeutics, The Institute of Cancer Research , London SM2 5NG, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AURORA KINASE A
A
285Homo sapiensMutation(s): 0 
Gene Names: AURKA (AIK, AIRK1, ARK1, AURA, AYK1, BTAK, IAK1, STK15, STK6)
EC: 2.7.11.1
Find proteins for O14965 (Homo sapiens)
Go to Gene View: AURKA
Go to UniProtKB:  O14965
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FH3
Query on FH3
Download SDF File 
Download CCD File 
A
(S)-N-((1-(6-chloro-2-(1,3-dimethyl-1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-7-yl)pyrrolidin-3-yl)methyl)acetamide
C18 H22 Cl N7 O
KLKOJHYRAITDCX-LBPRGKRZSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
FH3IC50: 9 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.227 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 82.456α = 90.00
b = 82.456β = 90.00
c = 170.664γ = 120.00
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
PHENIXrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-20
    Type: Initial release
  • Version 1.1: 2013-12-11
    Type: Database references