2GDO

4-(Aminoalkylamino)-3-Benzimidazole-Quinolinones As Potent CHK1 Inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

4-(Aminoalkylamino)-3-benzimidazole-quinolinones as potent CHK-1 inhibitors.

Ni, Z.J.Barsanti, P.Brammeier, N.Diebes, A.Poon, D.J.Ng, S.Pecchi, S.Pfister, K.Renhowe, P.A.Ramurthy, S.Wagman, A.S.Bussiere, D.E.Le, V.Zhou, Y.Jansen, J.M.Ma, S.Gesner, T.G.

(2006) Bioorg.Med.Chem.Lett. 16: 3121-3124

  • DOI: 10.1016/j.bmcl.2006.03.059

  • PubMed Abstract: 
  • CHK-1 is one of the key enzymes regulating checkpoints in cellular growth cycles. Novel 4-(amino-alkylamino)-3-benzimidazole-quinolinones were prepared and assayed for their ability to inhibit CHK-1. These compounds are potent cell permeable CHK-1 in ...

    CHK-1 is one of the key enzymes regulating checkpoints in cellular growth cycles. Novel 4-(amino-alkylamino)-3-benzimidazole-quinolinones were prepared and assayed for their ability to inhibit CHK-1. These compounds are potent cell permeable CHK-1 inhibitors and showed synergistic effect with a DNA-damaging agent, camptothecin.


    Organizational Affiliation

    Chiron Corporation, 4560 Horton Street, Emeryville, CA 94608, USA. zhi-jie_ni@chiron.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase Chk1
A
295Homo sapiensGene 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 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
12C
Query on 12C

Download SDF File 
Download CCD File 
A
4-[(3S)-1-AZABICYCLO[2.2.2]OCT-3-YLAMINO]-3-(1H-BENZIMIDAZOL-2-YL)-6-CHLOROQUINOLIN-2(1H)-ONE
C23 H22 Cl N5 O
MOVBBVMDHIRCTG-LJQANCHMSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
12CIC50: 0.3 nM (98) BINDINGDB
12CIC50: 0.32 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.203 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 44.704α = 90.00
b = 65.337β = 93.95
c = 57.517γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNXphasing
CNXrefinement
SCALEPACKdata scaling
CrystalCleardata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-03-20
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance