1DDX

CRYSTAL STRUCTURE OF A MIXTURE OF ARACHIDONIC ACID AND PROSTAGLANDIN BOUND TO THE CYCLOOXYGENASE ACTIVE SITE OF COX-2: PROSTAGLANDIN STRUCTURE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.267 
  • R-Value Observed: 0.267 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Structural insights into the stereochemistry of the cyclooxygenase reaction.

Kiefer, J.R.Pawlitz, J.L.Moreland, K.T.Stegeman, R.A.Hood, W.F.Gierse, J.K.Stevens, A.M.Goodwin, D.C.Rowlinson, S.W.Marnett, L.J.Stallings, W.C.Kurumbail, R.G.

(2000) Nature 405: 97-101

  • DOI: 10.1038/35011103
  • Primary Citation of Related Structures:  
    1CVU, 1DDX

  • PubMed Abstract: 
  • Cyclooxygenases are bifunctional enzymes that catalyse the first committed step in the synthesis of prostaglandins, thromboxanes and other eicosanoids. The two known cyclooxygenases isoforms share a high degree of amino-acid sequence similarity, structural topology and an identical catalytic mechanism ...

    Cyclooxygenases are bifunctional enzymes that catalyse the first committed step in the synthesis of prostaglandins, thromboxanes and other eicosanoids. The two known cyclooxygenases isoforms share a high degree of amino-acid sequence similarity, structural topology and an identical catalytic mechanism. Cyclooxygenase enzymes catalyse two sequential reactions in spatially distinct, but mechanistically coupled active sites. The initial cyclooxygenase reaction converts arachidonic acid (which is achiral) to prostaglandin G2 (which has five chiral centres). The subsequent peroxidase reaction reduces prostaglandin G2 to prostaglandin H2. Here we report the co-crystal structures of murine apo-cyclooxygenase-2 in complex with arachidonic acid and prostaglandin. These structures suggest the molecular basis for the stereospecificity of prostaglandin G2 synthesis.


    Related Citations: 
    • 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

    Organizational Affiliation

    Searle Discovery Research, Monsanto Company, St Louis, Missouri 63198, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (PROSTAGLANDIN H2 SYNTHASE-2)A, B, C, D552Mus musculusMutation(s): 0 
Gene Names: Ptgs2Cox-2Cox2Pghs-bTis10
EC: 1.14.99.1
UniProt
Find proteins for Q05769 (Mus musculus)
Explore Q05769 
Go to UniProtKB:  Q05769
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseE, F, G, H2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PGX
Query on PGX

Download Ideal Coordinates CCD File 
L [auth A], P [auth B], T [auth C], X [auth D]7-[6-(3-HYDROPEROXY-OCT-1-ENYL)-2,3-DIOXA-BICYCLO[2.2.1]HEPT-5-YL]-HEPT-5-ENOIC ACID
C20 H32 O6
SGUKUZOVHSFKPH-YNNPMVKQSA-N
 Ligand Interaction
BOG
Query on BOG

Download Ideal Coordinates CCD File 
K [auth A], O [auth B], S [auth C], W [auth D]octyl beta-D-glucopyranoside
C14 H28 O6
HEGSGKPQLMEBJL-RKQHYHRCSA-N
 Ligand Interaction
NAG
Query on NAG

Download Ideal Coordinates CCD File 
I [auth A], J [auth A], M [auth B], N [auth B], Q [auth C], R [auth C], U [auth D], V [auth D]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.267 
  • R-Value Observed: 0.267 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 180.24α = 90
b = 134.8β = 90
c = 122.51γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-05-16
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary