1TU6

Cathepsin K complexed with a ketoamide inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Potent and selective P2-P3 ketoamide inhibitors of cathepsin K with improved pharmacokinetic properties via favorable P1', P1, and/or P3 substitutions

Barrett, D.G.Catalano, J.G.Deaton, D.N.Hassell, A.M.Long, S.T.Miller, A.B.Miller, L.R.Shewchuk, L.M.Wells-Knecht, K.J.Willard, D.H.Wright, L.L.

(2004) Bioorg Med Chem Lett 14: 4897-4902

  • DOI: 10.1016/j.bmcl.2004.07.031
  • Primary Citation of Related Structures:  
    1TU6

  • PubMed Abstract: 
  • A series of ketoamides were synthesized and evaluated for inhibitory activity against cathepsin K. Exploration of the interactions between achiral P(2) substituents and the cysteine protease based on molecular modelling suggestions resulted in potent ...

    A series of ketoamides were synthesized and evaluated for inhibitory activity against cathepsin K. Exploration of the interactions between achiral P(2) substituents and the cysteine protease based on molecular modelling suggestions resulted in potent cathepsin K inhibitors that demonstrated high selectivity versus cathepsins B, H, and L. Subsequent modifications of the P(3), P(1), and P(1') moieties afforded orally bioavailable inhibitors.


    Organizational Affiliation

    Department of Medicinal Chemistry, GlaxoSmithKline, Research Triangle Park, NC 27709, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cathepsin KAB215Homo sapiensMutation(s): 0 
Gene Names: CTSKCTSOCTSO2
EC: 3.4.22.38
Find proteins for P43235 (Homo sapiens)
Explore P43235 
Go to UniProtKB:  P43235
NIH Common Fund Data Resources
PHAROS  P43235
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FSP
Query on FSP

Download CCD File 
A, B
[1-(4-FLUOROBENZYL)CYCLOBUTYL]METHYL (1S)-1-[OXO(1H-PYRAZOL-5-YLAMINO)ACETYL]PENTYLCARBAMATE
C23 H29 F N4 O4
QTPYRNAKLBXKNP-SFHVURJKSA-N
 Ligand Interaction
SO4
Query on SO4

Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
FSPIC50 :  0.8299999833106995   nM  PDBBind
FSPIC50:  0.8299999833106995   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.179α = 90
b = 66.776β = 90
c = 107.708γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
CNSrefinement
HKL-2000data reduction
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-09-21
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance