1DDX

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

1DDX の概要

• エントリーDOI: 10.2210/pdb1ddx/pdb
• 関連するPDBエントリー: 1CQE 1CVU 1DCX 1DD0 5COX 6COX
• 分子名称: PROTEIN (PROSTAGLANDIN H2 SYNTHASE-2), 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose, 2-acetamido-2-deoxy-beta-D-glucopyranose, ... (6 entities in total)
• 機能のキーワード: cox-2, cyclooxygenase, prostaglandin, arachidonate, endoperoxide, oxidoreductase
• 由来する生物種: Mus musculus (house mouse)
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 260100.29

構造登録者

Kiefer, J.R.,Pawlitz, J.L.,Moreland, K.T.,Stegeman, R.A.,Gierse, J.K.,Stevens, A.M.,Goodwin, D.C.,Rowlinson, S.W.,Marnett, L.J.,Stallings, W.C.,Kurumbail, R.G. (登録日: 1999-11-11, 公開日: 2000-05-16, 最終更新日: 2024-11-20)

主引用文献

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.
Structural insights into the stereochemistry of the cyclooxygenase reaction.
Nature, 405:97-101, 2000

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. 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.

PubMed: 10811226
DOI: 10.1038/35011103

実験手法

X-RAY DIFFRACTION (3 Å)