1Q6K

Cathepsin K complexed with t-butyl(1S)-1-cyclohexyl-2-oxoethylcarbamate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Observed: 0.200 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.6 of the entry. See complete history


Literature

Exploration of the P1 SAR of aldehyde cathepsin K inhibitors

Catalano, J.G.Deaton, D.N.Furfine, E.S.Hassell, A.M.McFadyen, R.B.Miller, A.B.Miller, L.R.Shewchuk, L.M.Willard, D.H.Wright, L.L.

(2004) Bioorg Med Chem Lett 14: 275-278

  • DOI: https://doi.org/10.1016/j.bmcl.2003.09.088
  • Primary Citation of Related Structures:  
    1Q6K

  • PubMed Abstract: 

    The synthesis and biological activity of a series of aldehyde inhibitors of cathepsin K are reported. Exploration of the properties of the S(1) subsite with a series of alpha-amino aldehyde derivatives substituted at the P(1) position afforded compounds with cathepsin K IC(50)s between 52 microM and 15 nM.


  • Organizational Affiliation

    Department of Medicinal Chemistry, GlaxoSmithKline, Five Moore Drive, Research Triangle Park, NC 27709-3398, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cathepsin K215Homo sapiensMutation(s): 0 
Gene Names: CTSK OR CTSO
EC: 3.4.22.38
UniProt & NIH Common Fund Data Resources
Find proteins for P43235 (Homo sapiens)
Explore P43235 
Go to UniProtKB:  P43235
PHAROS:  P43235
GTEx:  ENSG00000143387 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP43235
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
TCO
Query on TCO

Download Ideal Coordinates CCD File 
C [auth A]TERT-BUTYL(1S)-1-CYCLOHEXYL-2-OXOETHYLCARBAMATE
C13 H23 N O3
BDSGOSWEKUGHOV-LLVKDONJSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Binding Affinity Annotations 
IDSourceBinding Affinity
TCO BindingDB:  1Q6K IC50: 26 (nM) from 1 assay(s)
PDBBind:  1Q6K IC50: 26 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Observed: 0.200 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.443α = 90
b = 56.443β = 90
c = 130.212γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2004-03-16
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2018-02-14
    Changes: Experimental preparation
  • Version 1.5: 2023-08-16
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.6: 2024-10-30
    Changes: Structure summary