3PDC

Crystal structure of hydrolase domain of human soluble epoxide hydrolase complexed with a benzoxazole inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.333 
  • R-Value Work: 0.279 
  • R-Value Observed: 0.279 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Discovery of potent inhibitors of soluble epoxide hydrolase by combinatorial library design and structure-based virtual screening.

Xing, L.McDonald, J.J.Kolodziej, S.A.Kurumbail, R.G.Williams, J.M.Warren, C.J.O'Neal, J.M.Skepner, J.E.Roberds, S.L.

(2011) J Med Chem 54: 1211-1222

  • DOI: 10.1021/jm101382t
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Structure-based virtual screening was applied to design combinatorial libraries to discover novel and potent soluble epoxide hydrolase (sEH) inhibitors. X-ray crystal structures revealed unique interactions for a benzoxazole template in addition to t ...

    Structure-based virtual screening was applied to design combinatorial libraries to discover novel and potent soluble epoxide hydrolase (sEH) inhibitors. X-ray crystal structures revealed unique interactions for a benzoxazole template in addition to the conserved hydrogen bonds with the catalytic machinery of sEH. By exploitation of the favorable binding elements, two iterations of library design based on amide coupling were employed, guided principally by the docking results of the enumerated virtual products. Biological screening of the libraries demonstrated as high as 90% hit rate, of which over two dozen compounds were single digit nanomolar sEH inhibitors by IC(50) determination. In total the library design and synthesis produced more than 300 submicromolar sEH inhibitors. In cellular systems consistent activities were demonstrated with biochemical measurements. The SAR understanding of the benzoxazole template provides valuable insights into discovery of novel sEH inhibitors as therapeutic agents.


    Organizational Affiliation

    Pfizer Global Research and Development, 700 Chesterfield Parkway West, Chesterfield, Missouri 63017, United States. li.xing@pfizer.com



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Epoxide hydrolase 2A, B344Homo sapiensMutation(s): 0 
Gene Names: EPHX2
EC: 3.3.2.10 (PDB Primary Data), 3.1.3.76 (UniProt)
Find proteins for P34913 (Homo sapiens)
Explore P34913 
Go to UniProtKB:  P34913
NIH Common Fund Data Resources
PHAROS  P34913
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZYI
Query on ZYI

Download CCD File 
A, B
N-(5-chloro-1,3-benzoxazol-2-yl)-2-cyclopentylacetamide
C14 H15 Cl N2 O2
QXFNONNLQZPIAQ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ZYIIC50 :  32   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.333 
  • R-Value Work: 0.279 
  • R-Value Observed: 0.279 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.523α = 90
b = 79.902β = 90.223
c = 89.318γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
MAR345dtbdata collection
X-PLORphasing
X-PLORrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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