1T32

A Dual Inhibitor of the Leukocyte Proteases Cathepsin G and Chymase with Therapeutic Efficacy in Animals Models of Inflammation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.172 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A novel, potent dual inhibitor of the leukocyte proteases cathepsin G and chymase: molecular mechanisms and anti-inflammatory activity in vivo.

de Garavilla, L.Greco, M.N.Sukumar, N.Chen, Z.W.Pineda, A.O.Mathews, F.S.Di Cera, E.Giardino, E.C.Wells, G.I.Haertlein, B.J.Kauffman, J.A.Corcoran, T.W.Derian, C.K.Eckardt, A.J.Damiano, B.P.Andrade-Gordon, P.Maryanoff, B.E.

(2005) J.Biol.Chem. 280: 18001-18007

  • DOI: 10.1074/jbc.M501302200
  • Primary Citation of Related Structures:  1T31

  • PubMed Abstract: 
  • Certain leukocytes release serine proteases that sustain inflammatory processes and cause disease conditions, such as asthma and chronic obstructive pulmonary disease. We identified beta-ketophosphonate 1 (JNJ-10311795; RWJ-355871) as a novel, potent ...

    Certain leukocytes release serine proteases that sustain inflammatory processes and cause disease conditions, such as asthma and chronic obstructive pulmonary disease. We identified beta-ketophosphonate 1 (JNJ-10311795; RWJ-355871) as a novel, potent dual inhibitor of neutrophil cathepsin G (K(i) = 38 nm) and mast cell chymase (K(i) = 2.3 nm). The x-ray crystal structures of 1 complexed with human cathepsin G (1.85 A) and human chymase (1.90 A) reveal the molecular basis of the dual inhibition. Ligand 1 occupies the S(1) and S(2) subsites of cathepsin G and chymase similarly, with the 2-naphthyl in S(1), the 1-naphthyl in S(2), and the phosphonate group in a complex network of hydrogen bonds. Surprisingly, however, the carboxamido-N-(naphthalene-2-carboxyl)piperidine group is found to bind in two distinct conformations. In cathepsin G, this group occupies the hydrophobic S(3)/S(4) subsites, whereas in chymase, it does not; rather, it folds onto the 1-naphthyl group of the inhibitor itself. Compound 1 exhibited noteworthy anti-inflammatory activity in rats for glycogen-induced peritonitis and lipopolysaccharide-induced airway inflammation. In addition to a marked reduction in neutrophil influx, 1 reversed increases in inflammatory mediators interleukin-1alpha, interleukin-1beta, tissue necrosis factor-alpha, and monocyte chemotactic protein-1 in the glycogen model and reversed increases in airway nitric oxide levels in the lipopolysaccharide model. These findings demonstrate that it is possible to inhibit both cathepsin G and chymase with a single molecule and suggest an exciting opportunity in the treatment of asthma and chronic obstructive pulmonary disease.


    Related Citations: 
    • The 1.8 A crystal structure of human cathepsin G in complex with SUC-VAL-PRO-PHEP-(OPH)2: A Janus-Faced proteinase with two opposite specificities
      Hof, P.,Mayr, I.,Huber, R.,Korzus, E.,Potempa, J.,Travis, J.,Powers, J.C.,Bode, W.
      (1996) Embo J. 15: 5481


    Organizational Affiliation

    Drug Discovery, Johnson & Johnson Pharmaceutical Research and Development, Spring House, Pennsylvania 19477-0776, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cathepsin G
A
224Homo sapiensGene Names: CTSG
EC: 3.4.21.20
Find proteins for P08311 (Homo sapiens)
Go to Gene View: CTSG
Go to UniProtKB:  P08311
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OHH
Query on OHH

Download SDF File 
Download CCD File 
A
2-[3-({METHYL[1-(2-NAPHTHOYL)PIPERIDIN-4-YL]AMINO}CARBONYL)-2-NAPHTHYL]-1-(1-NAPHTHYL)-2-OXOETHYLPHOSPHONIC ACID
C40 H35 N2 O6 P
XUJQPDQURBZEGJ-KXQOOQHDSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
OHHKi: 38 nM BINDINGMOAD
OHHKi: 38 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.172 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 38.800α = 90.00
b = 62.300β = 90.00
c = 79.300γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data collection
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2005-03-01
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance