The X-ray crystal structure of the membrane protein prostaglandin H2 synthase-1.Picot, D., Loll, P.J., Garavito, R.M.
(1994) Nature 367: 243-249
- PubMed: 8121489
- DOI: 10.1038/367243a0
- Primary Citation of Related Structures:
- PubMed Abstract:
- Synthesis and Use of Iodinated Nonsteroidal Antiinflammatory Drug Analogs as Crystallographic Probes of the Prostaglandin H2 Synthase Cyclooxygenase Active Site
Loll, P.J., Picot, D., Ekabo, O., Garavito, R.M.
(1996) Biochemistry 35: 7330
- The Structural Basis of Aspirin Activity Inferred from the Crystal Structure of Inactivated Prostaglandin H2 Synthase
Loll, P.J., Picot, D., Garavito, R.M.
(1995) Nat Struct Biol 2: 637
- X-Ray Crystal Structure of Canine Myeloperoxidase at 3 Angstroms Resolution
Zeng, J., Fenna, R.E.
(1992) J Mol Biol 226: 185
The three-dimensional structure of prostaglandin H2 synthase-1, an integral membrane protein, has been determined at 3.5 A resolution by X-ray crystallography. This bifunctional enzyme comprises three independent folding units: an epidermal growth fa ...
The three-dimensional structure of prostaglandin H2 synthase-1, an integral membrane protein, has been determined at 3.5 A resolution by X-ray crystallography. This bifunctional enzyme comprises three independent folding units: an epidermal growth factor domain, a membrane-binding motif and an enzymatic domain. Two adjacent but spatially distinct active sites were found for its haem-dependent peroxidase and cyclooxygenase activities. The cyclooxygenase active site is created by a long, hydrophobic channel that is the site of non-steroidal anti-inflammatory drug binding. The conformation of the membrane-binding motif strongly suggests that the enzyme integrates into only one leaflet of the lipid bilayer and is thus a monotopic membrane protein.
Department of Biochemistry and Molecular Biology, University of Chicago, Illinois 60637.