3VAP

Synthesis and SAR Studies of imidazo-[1,2-a]-pyrazine Aurora kinase inhibitors with improved off target kinase selectivity


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.66 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.205 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Synthesis and SAR studies of imidazo-[1,2-a]-pyrazine Aurora kinase inhibitors with improved off-target kinase selectivity.

Voss, M.E.Rainka, M.P.Fleming, M.Peterson, L.H.Belanger, D.B.Siddiqui, M.A.Hruza, A.Voigt, J.Gray, K.Basso, A.D.

(2012) Bioorg Med Chem Lett 22: 3544-3549

  • DOI: 10.1016/j.bmcl.2012.03.051
  • Primary Citation of Related Structures:  
    3VAP

  • PubMed Abstract: 
  • The structure-activity relationships of new Aurora A/B kinase inhibitors derived from the previously identified kinase inhibitor 12 are described. Introduction of acetic acid amides onto the pyrazole of compound 12 was postulated to influence Aurora ...

    The structure-activity relationships of new Aurora A/B kinase inhibitors derived from the previously identified kinase inhibitor 12 are described. Introduction of acetic acid amides onto the pyrazole of compound 12 was postulated to influence Aurora A/B selectivity and improve the profile against off-target kinases. The SAR of the acetic acid amides was explored and the effect of substitution on enzyme inhibition as well as mechanism-based cell activity was studied. Additionally, several of the more potent inhibitors were screened for their off-target kinase selectivity.


    Organizational Affiliation

    AMRI Global, 26 Corporate Circle, Albany, NY 12212, USA. matthew.voss@amriglobal.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Aurora kinase AA272Homo sapiensMutation(s): 0 
Gene Names: AURKAAIKAIRK1ARK1AURAAYK1BTAKIAK1STK15STK6
EC: 2.7.11.1
Find proteins for O14965 (Homo sapiens)
Explore O14965 
Go to UniProtKB:  O14965
NIH Common Fund Data Resources
PHAROS  O14965
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0FY
Query on 0FY

Download Ideal Coordinates CCD File 
A
3-(1-{2-[(3-fluoropyridinium-4-yl)amino]-2-oxoethyl}-1H-pyrazol-4-yl)-6-methyl-8-[(3-{[(1R,3R)-3-methylpiperidinium-1-yl]methyl}-1,2-thiazol-5-yl)amino]imidazo[1,2-a]pyrazin-1-ium
C27 H32 F N10 O S
PBHYAPKEUOBQSL-QGZVFWFLSA-Q
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0FYIC50 :  4   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.66 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.205 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.329α = 90
b = 83.329β = 90
c = 157.7γ = 120
Software Package:
Software NamePurpose
StructureStudiodata collection
BUSTERrefinement
AutoPROCdata scaling
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-05-02
    Type: Initial release
  • Version 1.1: 2012-05-23
    Changes: Database references