3O0U

Cathepsin K covalently bound to a cyano-pyrimidine inhibitor with improved selectivity over hERG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.152 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Optimisation of 2-cyano-pyrimidine inhibitors of cathepsin K: improving selectivity over hERG.

Rankovic, Z.Cai, J.Kerr, J.Fradera, X.Robinson, J.Mistry, A.Finlay, W.McGarry, G.Andrews, F.Caulfield, W.Cumming, I.Dempster, M.Waller, J.Arbuckle, W.Anderson, M.Martin, I.Mitchell, A.Long, C.Baugh, M.Westwood, P.Kinghorn, E.Jones, P.Uitdehaag, J.C.van Zeeland, M.Potin, D.Saniere, L.Fouquet, A.Chevallier, F.Deronzier, H.Dorleans, C.Nicolai, E.

(2010) Bioorg.Med.Chem.Lett. 20: 6237-6241

  • DOI: 10.1016/j.bmcl.2010.08.101
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Several structure-guided optimisation strategies were explored in order to improve the hERG selectivity profile of cathepsin K inhibitor 1, whilst maintaining its otherwise excellent in vitro and in vivo profile. Ultimately, attenuation of clogP and ...

    Several structure-guided optimisation strategies were explored in order to improve the hERG selectivity profile of cathepsin K inhibitor 1, whilst maintaining its otherwise excellent in vitro and in vivo profile. Ultimately, attenuation of clogP and pK(a) properties proved a successful approach and led to the discovery of a potent analogue 23, which, in addition to the desired selectivity over hERG (>1000-fold), displayed a highly attractive overall profile.


    Organizational Affiliation

    Merck Research Laboratories, MSD, Newhouse, Lanarkshire, ML1 5SH Scotland, United Kingdom. zoran.rankovic@merck.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cathepsin K
A
215Homo sapiensMutation(s): 0 
Gene Names: CTSK (CTSO, CTSO2)
EC: 3.4.22.38
Find proteins for P43235 (Homo sapiens)
Go to Gene View: CTSK
Go to UniProtKB:  P43235
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
O47
Query on O47

Download SDF File 
Download CCD File 
A
3-{2-[(E)-iminomethyl]-6-propylpyrimidin-4-yl}-N,N-dimethyl-5-(trifluoromethyl)benzamide
C18 H19 F3 N4 O
FLPAOFVJMBOQGB-LSHDLFTRSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
O47IC50: 12 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.152 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 37.695α = 90.00
b = 48.967β = 90.00
c = 103.958γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
CrystalCleardata collection
CrystalCleardata reduction
REFMACrefinement
CrystalCleardata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-03-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance