2IN6

Wee1 kinase complex with inhibitor PD311839


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.250 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Synthesis and structure-activity relationships of N-6 substituted analogues of 9-hydroxy-4-phenylpyrrolo[3,4-c]carbazole-1,3(2H,6H)-diones as inhibitors of Wee1 and Chk1 checkpoint kinases.

Smaill, J.B.Baker, E.N.Booth, R.J.Bridges, A.J.Dickson, J.M.Dobrusin, E.M.Ivanovic, I.Kraker, A.J.Lee, H.H.Lunney, E.A.Ortwine, D.F.Palmer, B.D.Quin, J.Squire, C.J.Thompson, A.M.Denny, W.A.

(2008) Eur J Med Chem 43: 1276-1296

  • DOI: 10.1016/j.ejmech.2007.07.016
  • Primary Citation of Related Structures:  
    2IN6, 2IO6

  • PubMed Abstract: 
  • A series of N-6 substituted 9-hydroxy-4-phenylpyrrolo[3,4-c]carbazole-1,3(2H,6H)-diones were prepared from N-substituted (5-methoxyphenyl)ethenylindoles. The target compounds were tested for their ability to inhibit the G2/M cell cycle checkpoint kin ...

    A series of N-6 substituted 9-hydroxy-4-phenylpyrrolo[3,4-c]carbazole-1,3(2H,6H)-diones were prepared from N-substituted (5-methoxyphenyl)ethenylindoles. The target compounds were tested for their ability to inhibit the G2/M cell cycle checkpoint kinases, Wee1 and Chk1. Analogues with neutral or cationic N-6 side chains were potent dual inhibitors. Acidic side chains provided potent (average IC(50) 0.057 microM) and selective (average ratio 223-fold) Wee1 inhibition. Co-crystal structures of inhibitors bound to Wee1 show that the pyrrolo[3,4-c]carbazole scaffold binds in the ATP-binding site, with N-6 substituents involved in H-bonding to conserved water molecules. HT-29 cells treated with doxorubicin and then target compounds demonstrate an active Cdc2/cyclin B complex, inhibition of the doxorubicin-induced phosphorylation of tyrosine 15 of Cdc2 and abrogation of the G2 checkpoint.


    Related Citations: 
    • Structure and inhibition of the human cell cycle checkpoint kinase, Wee1A kinase: an atypical tyrosine kinase with a key role in CDK1 regulation.
      Squire, C.J., Dickson, J.M., Ivanovic, I., Baker, E.N.
      (2005) Structure 13: 541

    Organizational Affiliation

    Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1020, New Zealand. j.smaill@auckland.ac.nz



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Wee1-like protein kinaseA287Homo sapiensMutation(s): 0 
Gene Names: WEE1
EC: 2.7.10.2
Find proteins for P30291 (Homo sapiens)
Explore P30291 
Go to UniProtKB:  P30291
NIH Common Fund Data Resources
PHAROS  P30291
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
839
Query on 839

Download CCD File 
A
3-(9-HYDROXY-1,3-DIOXO-4-PHENYL-2,3-DIHYDROPYRROLO[3,4-C]CARBAZOL-6(1H)-YL)PROPANOIC ACID
C23 H16 N2 O5
JDARUOOLJCFUOY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
839IC50:  23   nM  Binding MOAD
839IC50 :  23   nM  PDBBind
839IC50:  23   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.250 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.465α = 90
b = 69.465β = 90
c = 157.344γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
AMoREphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-09-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance