3PA4

X-ray crystal structure of compound 2a bound to human CHK1 kinase domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.225 

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
C72
Query on C72

Download SDF File 
Download CCD File 
A
2-(4-chlorophenyl)-4-[(3S)-piperidin-3-ylamino]thieno[3,2-c]pyridine-7-carboxamide
C19 H19 Cl N4 O S
QTBPGDBHORPJSA-ZDUSSCGKSA-N
 Ligand Interaction
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
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
C72IC50: 3 nM (100) BINDINGDB
C72IC50: 3 nM BINDINGMOAD
C72IC50: 3 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.225 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 44.920α = 90.00
b = 65.850β = 94.93
c = 58.270γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
PDB_EXTRACTdata extraction
BUSTERrefinement
BUSTER-TNTrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



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