View source for 1cqe

[[Image:1cqe.gif|left|200px]]

 {{Structure
|PDB= 1cqe |SIZE=350|CAPTION= <scene name='initialview01'>1cqe</scene>, resolution 3.1&Aring;
|SITE= <scene name='pdbsite=COA:Hydrophobic+Channel+Responsible+For+Cycloogenase+Activity'>COA</scene>, <scene name='pdbsite=COB:Hydrophobic+Channel+Responsible+For+Cycloogenase+Activity'>COB</scene>, <scene name='pdbsite=POA:Heme+Pocket+Responsible+For+Peroxidase+Activity'>POA</scene> and <scene name='pdbsite=POB:Heme+Pocket+Responsible+For+Peroxidase+Activity'>POB</scene>
|LIGAND= <scene name='pdbligand=BOG:B-OCTYLGLUCOSIDE'>BOG</scene>, <scene name='pdbligand=FLP:FLURBIPROFEN'>FLP</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>
|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Prostaglandin-endoperoxide_synthase Prostaglandin-endoperoxide synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.99.1 1.14.99.1] </span>
|GENE= 
|DOMAIN=
|RELATEDENTRY=
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1cqe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cqe OCA], [http://www.ebi.ac.uk/pdbsum/1cqe PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1cqe RCSB]</span>
}}

'''PROSTAGLANDIN H2 SYNTHASE-1 COMPLEX WITH FLURBIPROFEN'''


==Overview==
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.

==About this Structure==
1CQE is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Ovis_aries Ovis aries]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CQE OCA]. 

==Reference==
The X-ray crystal structure of the membrane protein prostaglandin H2 synthase-1., Picot D, Loll PJ, Garavito RM, Nature. 1994 Jan 20;367(6460):243-9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8121489 8121489]
[[Category: Ovis aries]]
[[Category: Prostaglandin-endoperoxide synthase]]
[[Category: Single protein]]
[[Category: Garavito, R M.]]
[[Category: Loll, P J.]]
[[Category: Mulichak, A M.]]
[[Category: Picot, D.]]
[[Category: dioxygenase]]
[[Category: oxidoreductase]]
[[Category: peroxidase]]

''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:26:30 2008''