3MYG

Aurora A Kinase complexed with SCH 1473759

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.221 
  • R-Value Observed: 0.222 

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
  • Structures With Same Primary Citation

  • 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: 

    Pharmaceutical Sciences.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase 6A272Homo sapiensMutation(s): 0 
Gene Names: AURKA, AIK, ARK1, AURA, BTAK, STK15, STK6, AIRK1, AYK1, IAK1
EC: 2.7.11.1
Find proteins for O14965 (Homo sapiens)
Explore O14965 
Go to UniProtKB:  O14965
NIH Common Fund Data Resources
PHAROS  O14965
GTEx  ENSG00000087586
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EML
Query on EML
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
C20 H26 N8 O S
RHGZQGXELRMGES-UHFFFAOYSA-N		 Ligand Interaction
PG4
Query on PG4
Download CCD File 
A
TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N		 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
EMLKd :  0.019999999552965164   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.221 
  • R-Value Observed: 0.222 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.88α = 90
b = 80.88β = 90
c = 171.282γ = 120
Software Package:
Software NamePurpose
StructureStudiodata collection
BUSTERrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

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