8S76 | pdb_00008s76

Soluble epoxide hydrolase in complex with PROTAC JSF67


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.48 Å
  • R-Value Free: 
    0.199 (Depositor), 0.199 (DCC) 
  • R-Value Work: 
    0.166 (Depositor), 0.166 (DCC) 
  • R-Value Observed: 
    0.168 (Depositor) 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Structure-Based Design of PROTACS for the Degradation of Soluble Epoxide Hydrolase.

Schonfeld, J.Brunst, S.Ciomirtan, L.Willmer, L.Chromik, M.A.Kumar, A.Froemel, T.Liebisch, N.Hackspacher, A.Ehrler, J.H.M.Wintermeier, L.Hesse, C.Fiedler, J.Heering, J.Freitag, H.Zardo, P.Fieguth, H.G.Bruggerhoff, A.Jakob, J.Haupl, B.Weizel, L.Kaiser, A.Schubert-Zsilavecz, M.Oellerich, T.Fleming, I.Schebb, N.H.Furst, R.Kannt, A.Knapp, S.Proschak, E.Hiesinger, K.

(2025) J Med Chem 68: 13728-13749

  • DOI: https://doi.org/10.1021/acs.jmedchem.5c00552
  • Primary Citation of Related Structures:  
    8S76, 8S77

  • PubMed Abstract: 

    The bifunctional soluble epoxide hydrolase (sEH) represents a promising target for inflammation-related diseases. Although potent inhibitors targeting each domain are available, sEH-PROTACs offer the unique ability to simultaneously block both enzymatic functions, mimicking the sEH knockout phenotype, which has been associated with reducing inflammation, including neuroinflammation, and delaying the progression of Alzheimer's disease. Herein, we report the structure-based development of a potent sEH-PROTAC as a useful pharmacological tool. In order to facilitate a rapid testing of the PROTACs, a cell-based sEH degradation assay was developed utilizing HiBiT technology. We designed and synthesized 24 PROTACs. Furthermore, cocrystallization of sEH with two selected PROTACs allowed us to explore the binding mode and rationalize the most optimal linker length. After comprehensive biological and physicochemical characterization of this series, the most optimal PROTAC 23 was identified in primary human and murine cells, highlighting the potential of using 23 in disease-relevant cell and tissue models.


  • Organizational Affiliation
    • Institute of Pharmaceutical Chemistry, Goethe University, 60438 Frankfurt am Main, Germany.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Bifunctional epoxide hydrolase 2
A, B
367Homo sapiensMutation(s): 0 
Gene Names: EPHX2
EC: 3.3.2.10 (PDB Primary Data), 3.1.3.76 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P34913 (Homo sapiens)
Explore P34913 
Go to UniProtKB:  P34913
PHAROS:  P34913
GTEx:  ENSG00000120915 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP34913
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
A1H5M (Subject of Investigation/LOI)
Query on A1H5M

Download Ideal Coordinates CCD File 
C [auth A],
M [auth B]
~{N}-[[4-[3-[1-[2-[2-[2-[[2-[2,6-bis(oxidanylidene)piperidin-3-yl]-1,3-bis(oxidanylidene)isoindol-5-yl]amino]-2-oxidanylidene-ethoxy]ethoxy]ethyl]-1,2,3-triazol-4-yl]propylsulfonylamino]-2-(trifluoromethyl)phenyl]methyl]-1-[(3-fluorophenyl)methyl]indole-5-carboxamide
C48 H45 F4 N9 O10 S
LLKXZXOMWQVKAU-UHFFFAOYSA-N
PEG
Query on PEG

Download Ideal Coordinates CCD File 
K [auth A],
L [auth A],
Q [auth B],
R [auth B]
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
EDO
Query on EDO

Download Ideal Coordinates CCD File 
D [auth A]
E [auth A]
F [auth A]
G [auth A]
H [auth A]
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
N [auth B],
O [auth B],
P [auth B]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.48 Å
  • R-Value Free:  0.199 (Depositor), 0.199 (DCC) 
  • R-Value Work:  0.166 (Depositor), 0.166 (DCC) 
  • R-Value Observed: 0.168 (Depositor) 
Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.395α = 90
b = 80.362β = 92.17
c = 90.224γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)Germany530858826

Revision History  (Full details and data files)

  • Version 1.0: 2025-03-12
    Type: Initial release
  • Version 1.1: 2025-09-24
    Changes: Database references