1VSN

Crystal structure of a potent small molecule inhibitor bound to cathepsin K


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.171 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Identification of a potent and selective non-basic cathepsin K inhibitor.

Li, C.S.Deschenes, D.Desmarais, S.Falgueyret, J.P.Gauthier, J.Y.Kimmel, D.B.McGrath, M.E.McKay, D.J.Percival, M.D.Riendeau, D.Rodan, S.B.Truong, V.L.Wesolowski, G.Zamboni, R.Black, W.C.

(2006) Bioorg.Med.Chem.Lett. 16: 1985-1989

  • DOI: 10.1016/j.bmcl.2005.12.071
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Based on our previous study with trifluoroethylamine as a P2-P3 amide isostere of cathepsin K inhibitor, further optimization led to identification of compound 22 (L-873724) as a potent and selective non-basic cathepsin K inhibitor. This compound sho ...

    Based on our previous study with trifluoroethylamine as a P2-P3 amide isostere of cathepsin K inhibitor, further optimization led to identification of compound 22 (L-873724) as a potent and selective non-basic cathepsin K inhibitor. This compound showed excellent pharmacokinetics and efficacy in an ovariectomized (OVX) rhesus monkey model. The volumes of distribution close to unity were consistent with this compound not being lysosomotropic, which is a characteristic of basic cathepsin K inhibitors.


    Organizational Affiliation

    Merck Frosst Centre for Therapeutic Research, PO Box 1005, Pointe-Claire-Dorval, Que., Canada H9R 4P8. chunsing_li@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
NFT
Query on NFT

Download SDF File 
Download CCD File 
A
N-(2-AMINOETHYL)-N~2~-{(1S)-1-[4'-(AMINOSULFONYL)BIPHENYL-4-YL]-2,2,2-TRIFLUOROETHYL}-L-LEUCINAMIDE
C22 H29 F3 N4 O3 S
QPXXBNKMAHUXBB-PMACEKPBSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
NFTIC50: 0.2 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.171 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 38.420α = 90.00
b = 51.000β = 90.00
c = 104.200γ = 90.00
Software Package:
Software NamePurpose
bioteXdata reduction
d*TREKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
REFMACrefinement
XTALVIEWrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2007-03-19 
  • Released Date: 2007-04-24 
  • Deposition Author(s): McGrath, M.
  • This entry supersedes: 2FDZ

Revision History 

  • Version 1.0: 2007-04-24
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description