1CX2

CYCLOOXYGENASE-2 (PROSTAGLANDIN SYNTHASE-2) COMPLEXED WITH A SELECTIVE INHIBITOR, SC-558


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for selective inhibition of cyclooxygenase-2 by anti-inflammatory agents.

Kurumbail, R.G.Stevens, A.M.Gierse, J.K.McDonald, J.J.Stegeman, R.A.Pak, J.Y.Gildehaus, D.Miyashiro, J.M.Penning, T.D.Seibert, K.Isakson, P.C.Stallings, W.C.

(1996) Nature 384: 644-648

  • DOI: 10.1038/384644a0
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Prostaglandins and glucocorticoids are potent mediators of inflammation. Non-steroidal anti-inflammatory drugs (NSAIDs) exert their effects by inhibition of prostaglandin production. The pharmacological target of NSAIDs is cyclooxygenase (COX, also k ...

    Prostaglandins and glucocorticoids are potent mediators of inflammation. Non-steroidal anti-inflammatory drugs (NSAIDs) exert their effects by inhibition of prostaglandin production. The pharmacological target of NSAIDs is cyclooxygenase (COX, also known as PGH synthase), which catalyses the first committed step in arachidonic-acid metabolism. Two isoforms of the membrane protein COX are known: COX-1, which is constitutively expressed in most tissues, is responsible for the physiological production of prostaglandins; and COX-2, which is induced by cytokines, mitogens and endotoxins in inflammatory cells, is responsible for the elevated production of prostaglandins during inflammation. The structure of ovine COX-1 complexed with several NSAIDs has been determined. Here we report the structures of unliganded murine COX-2 and complexes with flurbiprofen, indomethacin and SC-558, a selective COX-2 inhibitor, determined at 3.0 to 2.5 A resolution. These structures explain the structural basis for the selective inhibition of COX-2, and demonstrate some of the conformational changes associated with time-dependent inhibition.


    Related Citations: 
    • Erratum. Structural Basis for Selective Inhibition of Cyclooxygenase-2 by Anti-Inflammatory Agents
      Kurumbail, R.G., Stevens, A.M., Gierse, J.K., Mcdonald, J.J., Stegeman, R.A., Pak, J.Y., Gildehaus, D., Miyashiro, J.M., Penning, T.D., Seibert, K., Isakson, P.C., Stallings, W.C.
      (1997) Nature 385: 555

    Organizational Affiliation

    G.D. Searle, St Louis, Missouri 63198, USA. rgkuru@punchiri.monsanto.com



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYCLOOXYGENASE-2
A, B, C, D
587Mus musculusMutation(s): 0 
Gene Names: Ptgs2Cox-2Cox2Pghs-bTis10
EC: 1.14.99.1
Membrane protein
Mpstruc
Group: 
MONOTOPIC MEMBRANE PROTEINS
Sub Group: 
Cyclooxygenases
Protein: 
Cyclooxygenase-2
Find proteins for Q05769 (Mus musculus)
Go to UniProtKB:  Q05769
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download CCD File 
A, B, C, D
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
S58
Query on S58

Download CCD File 
A, B, C, D
1-PHENYLSULFONAMIDE-3-TRIFLUOROMETHYL-5-PARABROMOPHENYLPYRAZOLE
C16 H11 Br F3 N3 O2 S
OYZKFVIVPRQRQQ-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
S58IC50:  50   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 180.34α = 90
b = 133.92β = 90
c = 121.14γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MERLOTphasing
X-PLORrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-12-24
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance