3PA5

X-ray crystal structure of compound 1 bound to human CHK1 kinase domain

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.185 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Design, synthesis and SAR of thienopyridines as potent CHK1 inhibitors.

Zhao, L., Zhang, Y., Dai, C., Guzi, T., Wiswell, D., Seghezzi, W., Parry, D., Fischmann, T., Siddiqui, M.A.

(2010) Bioorg.Med.Chem.Lett. 20: 7216-7221

  • DOI: 10.1016/j.bmcl.2010.10.105
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • A novel series of CHK1 inhibitors based on thienopyridine template has been designed and synthesized. These inhibitors maintain critical hydrogen bonding with the hinge and conserved water in the ATP binding site. Several compounds show single digit ...

    A novel series of CHK1 inhibitors based on thienopyridine template has been designed and synthesized. These inhibitors maintain critical hydrogen bonding with the hinge and conserved water in the ATP binding site. Several compounds show single digit nanomolar CHK1 activities. Compound 70 shows excellent enzymatic activity of 1 nM.

    Organizational Affiliation: 

    Department of Chemistry, Merck Research Laboratories, Cambridge, MA 02141, USA. lianyun.zhao@merck.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase Chk1
A
273Homo sapiensMutation(s): 0 
Gene 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
GOL
Query on GOL
Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
C73
Query on C73
Download SDF File 
Download CCD File 
A
2-(carbamoylamino)-5-(4-chlorophenyl)-N-[(3S)-piperidin-3-yl]thiophene-3-carboxamide
C17 H19 Cl N4 O2 S
MZBVMTJFZZINAF-LBPRGKRZSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
C73IC50: 10 nM (100) BINDINGDB
C73IC50: 2 nM BINDINGMOAD
C73IC50: 2 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.185 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 44.840α = 90.00
b = 65.850β = 94.68
c = 58.250γ = 90.00
Software Package:
Software NamePurpose
BUSTER-TNTrefinement
BUSTERrefinement
DENZOdata reduction
PDB_EXTRACTdata extraction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2010-10-18 
  • Released Date: 2010-12-08 
  • Deposition Author(s): Fischmann, T.O.

Revision History 

  • Version 1.0: 2010-12-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance