2ORT

Murine Inducible Nitric Oxide Synthase Oxygenase Domain (Delta 114) 1-Benzo[1,3]dioxol-5-ylmethyl-3S-(4-imidazol-1-yl-phenoxy)-piperidine Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.220 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Design, Synthesis, and Activity of 2-Imidazol-1-ylpyrimidine Derived Inducible Nitric Oxide Synthase Dimerization Inhibitors

Davey, D.D.Adler, M.Arnaia, D.Eagen, K.Erickson, S.Guilford, W.Kenrick, M.Morrissey, M.M.Ohimeyer, M.Pan, G.Paradkar, V.M.Parkinson, J.Polokoff, M.Salonz, K.Santos, C.Subramanyam, B.Vergona, R.Wei, R.G.Whitlow, M.Ye, B.Zhao, Z.S.Devlin, J.J.Phillips, G.

(2007) J Med Chem 50: 1146-1157

  • DOI: https://doi.org/10.1021/jm061319i
  • Primary Citation of Related Structures:  
    2ORO, 2ORP, 2ORQ, 2ORR, 2ORS, 2ORT

  • PubMed Abstract: 

    By the screening of a combinatorial library for inhibitors of nitric oxide (NO) formation by the inducible isoform of nitric oxide synthase (iNOS) using a whole-cell assay, 2-(imidazol-1-yl)pyrimidines were identified. Compounds were found to inhibit the dimerization of iNOS monomers, thus preventing the formation of the dimeric, active form of the enzyme. Optimization led to the selection of the potent, selective, and orally available iNOS dimerization inhibitor, 21b, which significantly ameliorated adjuvant-induced arthritis in a rat model. Analysis of the crystal structure of the 21b--iNOS monomer complex provided a rationalization for both the SAR and the mechanism by which 21b blocks the formation of the protein--protein interaction present in the dimeric form of iNOS.


  • Organizational Affiliation

    Berlex Biosciences, 2600 Hilltop Drive, P.O. Box 4099, Richmond, California 94804-0099, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Nitric oxide synthase, inducible389Mus musculusMutation(s): 0 
Gene Names: Nos2Inosl
EC: 1.14.13.39
UniProt & NIH Common Fund Data Resources
Find proteins for P29477 (Mus musculus)
Explore P29477 
Go to UniProtKB:  P29477
IMPC:  MGI:97361
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP29477
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download Ideal Coordinates CCD File 
B [auth A]PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
342
Query on 342

Download Ideal Coordinates CCD File 
C [auth A](3S)-1-(1,3-BENZODIOXOL-5-YLMETHYL)-3-[4-(1H-IMIDAZOL-1-YL)PHENOXY]PIPERIDINE
C22 H23 N3 O3
HHOPJGKEAIIIDF-FQEVSTJZSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
342 BindingDB:  2ORT IC50: 72 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.220 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.06α = 90
b = 73.423β = 90
c = 92.724γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
CNXrefinement
ADSCdata collection
X-GENdata reduction
X-GENdata scaling
X-PLORphasing
CNSrefinement

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-04-17
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-08-30
    Changes: Data collection, Database references, Derived calculations, Refinement description