3MYG

Aurora A Kinase complexed with SCH 1473759


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.221 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Discovery of a Potent, Injectable Inhibitor of Aurora Kinases Based on the Imidazo-[1,2-a]-Pyrazine Core.

Yu, T.Tagat, J.R.Kerekes, A.D.Doll, R.J.Zhang, Y.Xiao, Y.Esposite, S.Belanger, D.B.Curran, P.J.Mandal, A.K.Siddiqui, M.A.Shih, N.Y.Basso, A.D.Liu, M.Gray, K.Tevar, S.Jones, J.Lee, S.Liang, L.Ponery, S.Smith, E.B.Hruza, A.Voigt, J.Ramanathan, L.Prosise, W.Hu, M.

(2010) ACS Med Chem Lett 1: 214-218

  • DOI: 10.1021/ml100063w

  • PubMed Abstract: 
  • The imidazo-[1,2-a]-pyrazine (1) is a dual inhibitor of Aurora kinases A and B with modest cell potency (IC50 = 250 nM) and low solubility (5 μM). Lead optimization guided by the binding mode led to the acyclic amino alcohol 12k (SCH 1473759), which ...

    The imidazo-[1,2-a]-pyrazine (1) is a dual inhibitor of Aurora kinases A and B with modest cell potency (IC50 = 250 nM) and low solubility (5 μM). Lead optimization guided by the binding mode led to the acyclic amino alcohol 12k (SCH 1473759), which is a picomolar inhibitor of Aurora kinases (TdF K d Aur A = 0.02 nM and Aur B = 0.03 nM) with improved cell potency (phos-HH3 inhibition IC50 = 25 nM) and intrinsic aqueous solubility (11.4 mM). It also demonstrated efficacy and target engagement in human tumor xenograft mouse models.


    Organizational Affiliation

    Department of Chemical Research.,Oncology.,Structural Chemistry.,Pharmaceutical Sciences.,Departments of Chemical Research.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase 6
A
272Homo 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 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PG4
Query on PG4

Download SDF File 
Download CCD File 
A
TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
EML
Query on EML

Download SDF File 
Download CCD File 
A
2-{ethyl[(5-{[6-methyl-3-(1H-pyrazol-4-yl)imidazo[1,2-a]pyrazin-8-yl]amino}isothiazol-3-yl)methyl]amino}-2-methylpropan-1-ol
SCH 1473759
C20 H26 N8 O S
RHGZQGXELRMGES-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
EMLKd: 0.02 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.221 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 80.880α = 90.00
b = 80.880β = 90.00
c = 171.282γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data reduction
BUSTERrefinement
HKL-2000data scaling
StructureStudiodata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-07-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2018-04-18
    Type: Data collection, Database references