3N4C

6-Phenyl-1H-imidazo[4,5-c]pyridine-4-carbonitrile as cathepsin S inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.249 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

6-Phenyl-1H-imidazo[4,5-c]pyridine-4-carbonitrile as cathepsin S inhibitors.

Cai, J.Baugh, M.Black, D.Long, C.Jonathan Bennett, D.Dempster, M.Fradera, X.Gillespie, J.Andrews, F.Boucharens, S.Bruin, J.Cameron, K.S.Cumming, I.Hamilton, W.Jones, P.S.Kaptein, A.Kinghorn, E.Maidment, M.Martin, I.Mitchell, A.Rankovic, Z.Robinson, J.Scullion, P.Uitdehaag, J.C.Vink, P.Westwood, P.van Zeeland, M.van Berkom, L.Bastiani, M.Meulemans, T.

(2010) Bioorg.Med.Chem.Lett. 20: 4350-4354

  • DOI: 10.1016/j.bmcl.2010.06.072

  • PubMed Abstract: 
  • 6-Phenyl-1H-imidazo[4,5-c]pyridine-4-carbonitrile analogues were identified as potent and selective cathepsin S inhibitor against both purified enzyme and in human JY cell based cellular assays. This core has a very stable thio-trapping nitrile war-h ...

    6-Phenyl-1H-imidazo[4,5-c]pyridine-4-carbonitrile analogues were identified as potent and selective cathepsin S inhibitor against both purified enzyme and in human JY cell based cellular assays. This core has a very stable thio-trapping nitrile war-head in comparison with the well reported pyrimidine-2-carbonitrile cysteine cathepsin inhibitors. Compound 47 is also very potent in in vivo mouse spleenic Lip10 accumulation assays.


    Organizational Affiliation

    Merck Research Laboratories, Newhouse, Lanarkshire ML1 5SH, UK. jiaqiang.cai@merck.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cathepsin S
A, B
217Homo sapiensMutation(s): 0 
Gene Names: CTSS
EC: 3.4.22.27
Find proteins for P25774 (Homo sapiens)
Go to Gene View: CTSS
Go to UniProtKB:  P25774
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
EF3
Query on EF3

Download SDF File 
Download CCD File 
A, B
(E)-1-(1-methyl-6-{4-[3-(4-methylpiperazin-1-yl)propoxy]-3-(trifluoromethyl)phenyl}-1H-imidazo[4,5-c]pyridin-4-yl)methanimine
C23 H27 F3 N6 O
MZJARPQAOGJEES-MZJWZYIUSA-N
 Ligand Interaction
DMS
Query on DMS

Download SDF File 
Download CCD File 
A, B
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
EF3IC50: 9.5 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.249 
  • Space Group: P 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 85.629α = 90.00
b = 85.629β = 90.00
c = 150.573γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
d*TREKdata reduction
REFMACrefinement
d*TREKdata scaling
MOLREPphasing
CrystalCleardata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-04-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance