2GHG

h-CHK1 complexed with A431994


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Discovery and SAR of oxindole-pyridine-based protein kinase B/Akt inhibitors for treating cancers.

Zhu, G.D.Gandhi, V.B.Gong, J.Luo, Y.Liu, X.Shi, Y.Guan, R.Magnone, S.R.Klinghofer, V.Johnson, E.F.Bouska, J.Shoemaker, A.Oleksijew, A.Jarvis, K.Park, C.De Jong, R.Oltersdorf, T.Li, Q.Rosenberg, S.H.Giranda, V.L.

(2006) Bioorg.Med.Chem.Lett. 16: 3424-3429

  • DOI: 10.1016/j.bmcl.2006.04.005

  • PubMed Abstract: 
  • We describe a series of potent and selective oxindole-pyridine-based protein kinase B/Akt inhibitors. The most potent compound 11n in this series demonstrated an IC(50) of 0.17nM against Akt1 and more than 100-fold selectivity over other Akt isozymes ...

    We describe a series of potent and selective oxindole-pyridine-based protein kinase B/Akt inhibitors. The most potent compound 11n in this series demonstrated an IC(50) of 0.17nM against Akt1 and more than 100-fold selectivity over other Akt isozymes. The selectivity against other protein kinases was highly dependent on the C-3 substitutions at the oxindole scaffold, with unsubstituted 9e or 3-furan-2-ylmethylene (11n) more selective and 3-(1H-pyrrol-2-yl)methylene (11f) or 3-(1H-imidazol-2-yl)methylene (11k) less selective. In a mouse xenograft model, 9d, 11f, and 11n inhibited tumor growth but with accompanying toxicity.


    Organizational Affiliation

    Cancer Research, GPRD, Abbott Laboratories, Abbott Park, IL 60064, USA. gui-dong.zhu@abbott.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase Chk1
A
269Homo sapiensMutation(s): 0 
Gene Names: CHEK1 (CHK1)
EC: 2.7.11.1
Find proteins for O14757 (Homo sapiens)
Go to Gene View: CHEK1
Go to UniProtKB:  O14757
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
A53
Query on A53

Download SDF File 
Download CCD File 
A
5-{5-[(S)-2-AMINO-3-(1H-INDOL-3-YL)-PROPOXYL]-PYRIDIN-3-YL}-3-[1-(1H-PYRROL-2-YL)-METH-(Z)-YLIDENE]-1,3-DIHYDRO-INDOL-2-ONE
C29 H25 N5 O2
DQMKXCKXZQEVJU-VHLXNKDGSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
A53Ki: 126 nM (100) BINDINGDB
A53IC50: 1.5 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.220 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 45.162α = 90.00
b = 66.087β = 94.81
c = 58.492γ = 90.00
Software Package:
Software NamePurpose
CNXphasing
CNXrefinement
HKL-2000data scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2006-03-27 
  • Released Date: 2007-03-27 
  • Deposition Author(s): Park, C.

Revision History 

  • Version 1.0: 2007-03-27
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance