PDBe 3n8x

X-ray diffraction
2.75Å resolution

Crystal Structure of Cyclooxygenase-1 in Complex with Nimesulide


Function and Biology Details

Reaction catalysed:
Arachidonate + AH(2) + 2 O(2) = prostaglandin H(2) + A + H(2)O. 
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Prostaglandin G/H synthase 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 553 amino acids
Theoretical weight: 63.72 KDa
Source organism: Ovis aries
Expression system: Spodoptera frugiperda
  • Canonical: P05979 (Residues: 32-584; Coverage: 96%)
Gene names: COX1, PTGS1
Sequence domains:
Structure domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-F
Spacegroup: P65
Unit cell:
a: 181.709Å b: 181.709Å c: 103.454Å
α: 90° β: 90° γ: 120°
R R work R free
0.182 0.181 0.227
Expression system: Spodoptera frugiperda