2QHN

Crystal Structure of Chek1 in Complex with Inhibitor 1a


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.230
  • R-Value Work: 0.202

Literature

Macromolecules
Sequence Display for 2QHN

Classification: TRANSFERASE

Total Structure Weight: 37149.41

Macromolecule Entities
Molecule Chains Length Organism Details
Serine/threonine-protein kinase Chk1 A 323 Homo sapiens EC#: 2.7.11.1 IUBMB
Fragment: Protein kinase domain, residues 1-307
Gene Name(s): CHEK1 Gene View CHK1
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
582
Query on 582

A 5-ETHYL-3-METHYL-1,5-DIHYDRO-4H-PYRAZOLO[4,3- C]QUINOLIN-4-ONE
C13 H13 N3 O
ASEHARDUZDZEKS-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
582 N/A in BindingDB
IC50: 980 nM  BindingMOAD
IC50: 980 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.230
  • R-Value Work: 0.202
  • Space Group: P 1 21 1

Unit Cell:

Length (Å) Angle (°)
a = 45.14 α = 90.00
b = 65.68 β = 94.55
c = 58.23 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2007-07-02
  • Released Date: 2008-03-18
  • Deposition author(s): Yan, Y., Munshi, S.

Revision History

  • 2011-07-13
    Type: Version format compliance