6AUM

Crystal structure of human soluble epoxide hydrolase complexed with trans-4-[4-(3-trifluoromethoxyphenyl-l-ureido)-cyclohexyloxy]-benzoic acid.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Identification and optimization of soluble epoxide hydrolase inhibitors with dual potency towards fatty acid amide hydrolase.

Kodani, S.D.Bhakta, S.Hwang, S.H.Pakhomova, S.Newcomer, M.E.Morisseau, C.Hammock, B.D.

(2018) Bioorg Med Chem Lett 28: 762-768

  • DOI: 10.1016/j.bmcl.2018.01.003
  • Primary Citation of Related Structures:  
    6AUM

  • PubMed Abstract: 
  • Multi-target inhibitors have become increasing popular as a means to leverage the advantages of poly-pharmacology while simplifying drug delivery. Here, we describe dual inhibitors for soluble epoxide hydrolase (sEH) and fatty acid amide hydrolase (F ...

    Multi-target inhibitors have become increasing popular as a means to leverage the advantages of poly-pharmacology while simplifying drug delivery. Here, we describe dual inhibitors for soluble epoxide hydrolase (sEH) and fatty acid amide hydrolase (FAAH), two targets known to synergize when treating inflammatory and neuropathic pain. The structure activity relationship (SAR) study described herein initially started with t-TUCB (trans-4-[4-(3-trifluoromethoxyphenyl-l-ureido)-cyclohexyloxy]-benzoic acid), a potent sEH inhibitor that was previously shown to weakly inhibit FAAH. Inhibitors with a 6-fold increase of FAAH potency while maintaining high sEH potency were developed by optimization. Interestingly, compared to most FAAH inhibitors that inhibit through time-dependent covalent modification, t-TUCB and related compounds appear to inhibit FAAH through a time-independent, competitive mechanism. These inhibitors are selective for FAAH over other serine hydrolases. In addition, FAAH inhibition by t-TUCB appears to be higher in human FAAH over other species; however, the new dual sEH/FAAH inhibitors have improved cross-species potency. These dual inhibitors may be useful for future studies in understanding the therapeutic application of dual sEH/FAAH inhibition.


    Organizational Affiliation

    Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, Davis, CA 95616, United States. Electronic address: bdhammock@ucdavis.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Bifunctional epoxide hydrolase 2A555Homo sapiensMutation(s): 0 
Gene Names: EPHX2
EC: 3.3.2.10 (PDB Primary Data), 3.1.3.76 (PDB Primary Data)
Find proteins for P34913 (Homo sapiens)
Explore P34913 
Go to UniProtKB:  P34913
NIH Common Fund Data Resources
PHAROS  P34913
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BXV
Query on BXV

Download CCD File 
A
4-{[trans-4-({[4-(trifluoromethoxy)phenyl]carbamoyl}amino)cyclohexyl]oxy}benzoic acid
C21 H21 F3 N2 O5
XDVFKCZZXOGEMN-CZIWCDLHSA-N
 Ligand Interaction
PO4
Query on PO4

Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.196 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.713α = 90
b = 92.713β = 90
c = 243.736γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)United StatesR01 ES002710
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)United StatesP42 ES004699
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)United StatesHL 107877

Revision History 

  • Version 1.0: 2018-02-07
    Type: Initial release
  • Version 1.1: 2018-02-14
    Changes: Author supporting evidence
  • Version 1.2: 2018-02-28
    Changes: Database references
  • Version 1.3: 2019-12-04
    Changes: Author supporting evidence