2IO6

Wee1 kinase complexed with inhibitor PD330961

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.233 

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:  

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Wee1-like protein kinase
A
287Homo sapiensMutation(s): 0 
Gene Names: WEE1
EC: 2.7.10.2
Find proteins for P30291 (Homo sapiens)
Go to Gene View: WEE1
Go to UniProtKB:  P30291
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
330
Query on 330
Download SDF File 
Download CCD File 
A
9-HYDROXY-6-(3-HYDROXYPROPYL)-4-(2-METHOXYPHENYL)PYRROLO[3,4-C]CARBAZOLE-1,3(2H,6H)-DIONE
C24 H20 N2 O5
AOGOZJCRIFBTTN-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
330IC50: 30 nM (99) BINDINGDB
330IC50: 30 nM BINDINGMOAD
330IC50: 30 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.233 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 69.925α = 90.00
b = 69.925β = 90.00
c = 157.920γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

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