2GV6

Crystal Structure of Matriptase with Inhibitor CJ-730


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Secondary Amides of Sulfonylated 3-Amidinophenylalanine. New Potent and Selective Inhibitors of Matriptase.

Steinmetzer, T.Schweinitz, A.Sturzebecher, A.Donnecke, D.Uhland, K.Schuster, O.Steinmetzer, P.Muller, F.Friedrich, R.Than, M.E.Bode, W.Sturzebecher, J.

(2006) J.Med.Chem. 49: 4116-4126

  • DOI: 10.1021/jm051272l
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Matriptase is an epithelium-derived type II transmembrane serine protease and has been implicated in the activation of substrates such as pro-HGF/SF and pro-uPA, which are likely involved in tumor progression and metastasis. Through screening, we hav ...

    Matriptase is an epithelium-derived type II transmembrane serine protease and has been implicated in the activation of substrates such as pro-HGF/SF and pro-uPA, which are likely involved in tumor progression and metastasis. Through screening, we have identified bis-basic secondary amides of sulfonylated 3-amidinophenylalanine as matriptase inhibitors. X-ray analyses of analogues 8 and 31 in complex with matriptase revealed that these inhibitors occupy, in addition to part of the previously described S4-binding site, the cleft formed by the molecular surface and the unique 60 loop of matriptase. Therefore, optimization of the inhibitors included the incorporation of appropriate sulfonyl substituents that could improve binding of these inhibitors into both characteristic matriptase subsites. The most potent derivatives inhibit matriptase highly selective with K(i) values below 5 nM. Molecular modeling revealed that their improved affinity results from interaction with the S4 site of matriptase. Analogues 8 and 59 were studied in an orthotopic xenograft mouse model of prostate cancer. Compared to control, both inhibitors reduced tumor growth, as well as tumor dissemination.


    Organizational Affiliation

    Curacyte Chemistry GmbH, Winzerlaer Strasse 2, D-07745 Jena, Germany. torsten.steinmetzer@curacyte.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Suppressor of tumorigenicity 14
A
241Homo sapiensMutation(s): 0 
Gene Names: ST14 (PRSS14, SNC19, TADG15)
EC: 3.4.21.109
Find proteins for Q9Y5Y6 (Homo sapiens)
Go to Gene View: ST14
Go to UniProtKB:  Q9Y5Y6
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
730
Query on 730

Download SDF File 
Download CCD File 
A
(S)-3-(3-(4-(2-GUANIDINOETHYL)PIPERIDIN-1-YL)-2-(NAPHTHALENE-2-SULFONAMIDO)-3-OXOPROPYL)BENZIMIDAMIDE
C28 H35 N7 O3 S
BKOKSJAQZJNVPN-VWLOTQADSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
730Ki: 46 nM BINDINGMOAD
730Ki: 46 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.182 
  • Space Group: C 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 66.840α = 90.00
b = 141.020β = 90.00
c = 51.020γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2006-05-02 
  • Released Date: 2006-06-06 
  • Deposition Author(s): Bode, W.

Revision History 

  • Version 1.0: 2006-06-06
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance