3Q7D

Structure of (R)-naproxen bound to mCOX-2.

3Q7D の概要

• エントリーDOI: 10.2210/pdb3q7d/pdb
• 分子名称: Prostaglandin G/H synthase 2, 2-acetamido-2-deoxy-beta-D-glucopyranose, PROTOPORPHYRIN IX CONTAINING FE, ... (7 entities in total)
• 機能のキーワード: prostaglandin h2 synthase, cyclooxygenase-2, naproxen, oxidoreductase-oxidoreductase inhibitor complex, oxidoreductase/oxidoreductase inhibitor
• 由来する生物種: Mus musculus (mouse)
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 139661.33

構造登録者

Duggan, K.C.,Hermanson, D.J.,Musee, J.,Prusakiewicz, J.J.,Scheib, J.,Carter, B.D.,Banerjee, S.,Marnett, L.J. (登録日: 2011-01-04, 公開日: 2011-11-09, 最終更新日: 2024-11-20)

主引用文献

Duggan, K.C.,Hermanson, D.J.,Musee, J.,Prusakiewicz, J.J.,Scheib, J.L.,Carter, B.D.,Banerjee, S.,Oates, J.A.,Marnett, L.J.
(R)-Profens are substrate-selective inhibitors of endocannabinoid oxygenation by COX-2.
Nat.Chem.Biol., 7:803-809, 2011

PubMed Abstract: Cyclooxygenase-2 (COX-2) catalyzes the oxygenation of arachidonic acid and the endocannabinoids 2-arachidonoylglycerol and arachidonoylethanolamide. Evaluation of a series of COX-2 inhibitors revealed that many weak competitive inhibitors of arachidonic acid oxygenation are potent inhibitors of endocannabinoid oxygenation. (R) enantiomers of ibuprofen, naproxen and flurbiprofen, which are considered to be inactive as COX-2 inhibitors, are potent 'substrate-selective inhibitors' of endocannabinoid oxygenation. Crystal structures of the COX-2–(R)-naproxen and COX-2–(R)-flurbiprofen complexes verified this unexpected binding and defined the orientation of the (R) enantiomers relative to (S) enantiomers. (R)-Profens selectively inhibited endocannabinoid oxygenation by lipopolysaccharide-stimulated dorsal root ganglion (DRG) cells. Substrate-selective inhibition provides new tools for investigating the role of COX-2 in endocannabinoid oxygenation and a possible explanation for the ability of (R)-profens to maintain endocannabinoid tone in models of neuropathic pain.

PubMed: 22053353
DOI: 10.1038/nchembio.663

実験手法

X-RAY DIFFRACTION (2.4 Å)