3RR3

Structure of (R)-flurbiprofen bound to mCOX-2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.842 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

(R)-Profens are substrate-selective inhibitors of endocannabinoid oxygenation by COX-2.

Duggan, K.C.Hermanson, D.J.Musee, J.Prusakiewicz, J.J.Scheib, J.L.Carter, B.D.Banerjee, S.Oates, J.A.Marnett, L.J.

(2011) Nat.Chem.Biol. 7: 803-809

  • Primary Citation of Related Structures:  3Q7D

  • PubMed Abstract: 
  • Cyclooxygenase-2 (COX-2) catalyzes the oxygenation of arachidonic acid and the endocannabinoids 2-arachidonoylglycerol and arachidonoylethanolamide. Evaluation of a series of COX-2 inhibitors revealed that many weak competitive inhibitors of arachido ...

    Cyclooxygenase-2 (COX-2) catalyzes the oxygenation of arachidonic acid and the endocannabinoids 2-arachidonoylglycerol and arachidonoylethanolamide. Evaluation of a series of COX-2 inhibitors revealed that many weak competitive inhibitors of arachidonic acid oxygenation are potent inhibitors of endocannabinoid oxygenation. (R) enantiomers of ibuprofen, naproxen and flurbiprofen, which are considered to be inactive as COX-2 inhibitors, are potent 'substrate-selective inhibitors' of endocannabinoid oxygenation. Crystal structures of the COX-2–(R)-naproxen and COX-2–(R)-flurbiprofen complexes verified this unexpected binding and defined the orientation of the (R) enantiomers relative to (S) enantiomers. (R)-Profens selectively inhibited endocannabinoid oxygenation by lipopolysaccharide-stimulated dorsal root ganglion (DRG) cells. Substrate-selective inhibition provides new tools for investigating the role of COX-2 in endocannabinoid oxygenation and a possible explanation for the ability of (R)-profens to maintain endocannabinoid tone in models of neuropathic pain.


    Organizational Affiliation

    Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Prostaglandin G/H synthase 2
A, B, C, D
560Mus musculusGene Names: Ptgs2 (Cox-2, Cox2, Pghs-b, Tis10)
EC: 1.14.99.1
Find proteins for Q05769 (Mus musculus)
Go to UniProtKB:  Q05769
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download SDF File 
Download CCD File 
A, B, C, D
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
FLR
Query on FLR

Download SDF File 
Download CCD File 
A, B, C, D
(2R)-2-(3-fluoro-4-phenyl-phenyl)propanoic acid
Flurbirprofen, R-form
C15 H13 F O2
SYTBZMRGLBWNTM-SNVBAGLBSA-N
 Ligand Interaction
BOG
Query on BOG

Download SDF File 
Download CCD File 
A, B, C, D
B-OCTYLGLUCOSIDE
C14 H28 O6
HEGSGKPQLMEBJL-RKQHYHRCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
FLRIC50: 123000 nM (87) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.842 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.197 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 180.615α = 90.00
b = 134.549β = 90.00
c = 122.775γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
HKL-2000data reduction
ADSCdata collection
PHENIXmodel building
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-11-09
    Type: Initial release
  • Version 1.1: 2012-03-21
    Type: Database references