2ORQ

Murine Inducible Nitric Oxide Synthase Oxygenase Domain (DELTA 114) 4-(imidazol-1-yl)phenol and piperonylamine Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.2 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: 10.1021/jm061319i
  • Primary Citation of Related Structures:  

  • 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 ...

    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.


    Related Citations: 
    • 3-[4-(1-Imidazolyl)phenoxy]-1-piperonyl Piperidine Analogs as Potent and Selective Inhibitors of Nitric Oxide Formation
      Wei, R.G.,Adler, M.,Davey, D.,Ho, E.,Mohan, R.,Polokoff, M.,Tseng, J.L.,Whitlow, M.,Xu, W.,Yuan, S.,Phillips, G.
      (2007) TO BE PUBLISHED --: --
    • The structure of nitric oxide synthase oxygenase domain and inhibitor complexes.
      Crane, B.R.,Arvai, A.S.,Gachhui, R.,Wu, C.,Ghosh, D.K.,Getzoff, E.D.,Stuehr, D.J.,Tainer, J.A.
      (1997) Science 278: 425
    • The Rational Design of Inhibitors of Nitric Oxide Formation by Inducible Nitric Oxide Synthase
      Whitlow, M.,Adler, M.,Davey, D.D.,Huang, Q.,Koovakkat, S.,Pham, E.,Polokoff, M.,Xu, W.,Yuan, S.S.,Phillips, G.
      (2007) Bioorg.Med.Chem.Lett. 17: 2505
    • Characterization of the inducible nitric oxide synthase oxygenase domain identifies a 49 amino acid segment required for subunit dimerization and tetrahydrobiopterin interaction.
      Ghosh, D.K.,Wu, C.,Pitters, E.,Moloney, M.,Werner, E.R.,Mayer, B.,Stuehr, D.J.
      (1997) Biochemistry 36: 10609
    • Allosteric inhibitors of inducible nitric oxide synthase dimerization discovered via combinatorial chemistry.
      McMillan, K.,Adler, M.,Auld, D.S.,Baldwin, J.J.,Blasko, E.,Browne, L.J.,Chelsky, D.,Davey, D.,Dolle, R.E.,Eagen, K.A.,Erickson, S.,Feldman, R.I.,Glaser, C.B.,Mallari, C.,Morrissey, M.M.,Ohlmeyer, M.H.,Pan, G.,Parkinson, J.F.,Phillips, G.B.,Polokoff, M.A.,Sigal, N.H.,Vergona, R.,Whitlow, M.,Young, T.A.,Devlin, J.J.
      (2000) Proc.Natl.Acad.Sci.USA 97: 1506


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nitric oxide synthase, inducible
A
389Mus musculusMutation(s): 0 
Gene Names: Nos2 (Inosl)
EC: 1.14.13.39
Find proteins for P29477 (Mus musculus)
Go to UniProtKB:  P29477
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download SDF File 
Download CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
MSR
Query on MSR

Download SDF File 
Download CCD File 
A
4-(1H-IMIDAZOL-1-YL)PHENOL
C9 H8 N2 O
CYKCUAPYWQDIKR-UHFFFAOYSA-N
 Ligand Interaction
MR1
Query on MR1

Download SDF File 
Download CCD File 
A
1-(1,3-BENZODIOXOL-5-YL)METHANAMINE
C8 H9 N O2
ZILSBZLQGRBMOR-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.202 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 62.990α = 90.00
b = 74.170β = 90.00
c = 92.680γ = 90.00
Software Package:
Software NamePurpose
Blu-Icedata collection
CNXrefinement
X-PLORmodel building
CNSrefinement
MOSFLMdata reduction
X-PLORphasing
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2007-02-04 
  • Released Date: 2007-04-17 
  • Deposition Author(s): Adler, M., Whitlow, M.

Revision History 

  • Version 1.0: 2007-04-17
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance