2GDO

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.206 

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
  • Primary Citation of Related Structures:  
    2GDO

  • 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 inhibitors and showed synergistic effect with a DNA-damaging agent, camptothecin ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase Chk1A295Homo sapiensMutation(s): 0 
Gene Names: CHK1CHEK1
EC: 2.7.1.37 (PDB Primary Data), 2.7.11.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for O14757 (Homo sapiens)
Explore O14757 
Go to UniProtKB:  O14757
PHAROS:  O14757
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
12C (Subject of Investigation/LOI)
Query on 12C

Download Ideal Coordinates CCD File 
D [auth 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
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth A], C [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
12C BindingDB:  2GDO IC50: 0.32 (nM) from 1 assay(s)
PDBBind:  2GDO IC50: 0.32 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.206 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.704α = 90
b = 65.337β = 93.95
c = 57.517γ = 90
Software Package:
Software NamePurpose
CNXrefinement
CrystalCleardata reduction
DENZOdata reduction
SCALEPACKdata scaling
CNXphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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