2FPV

Dual binding mode of a novel series of DHODH inhibitors

2FPV の概要

• エントリーDOI: 10.2210/pdb2fpv/pdb
• 関連するPDBエントリー: 2BXV 2FPT 2FPY 2FQI
• 分子名称: Dihydroorotate dehydrogenase, mitochondrial, ACETATE ION, SULFATE ION, ... (7 entities in total)
• 機能のキーワード: protein inhibitor compley, oxidoreductase
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Mitochondrion inner membrane; Single-pass membrane protein: Q02127
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 44708.24

構造登録者

Baumgartner, R.,Leban, J. (登録日: 2006-01-17, 公開日: 2007-01-23, 最終更新日: 2023-08-30)

主引用文献

Baumgartner, R.,Walloschek, M.,Kralik, M.,Gotschlich, A.,Tasler, S.,Mies, J.,Leban, J.
Dual binding mode of a novel series of DHODH inhibitors.
J.Med.Chem., 49:1239-1247, 2006

PubMed Abstract: Human dihydroorotate dehydrogenase (DHODH) represents an important target for the treatment of hyperproliferative and inflammatory diseases. In the cell DHODH catalyzes the rate-limiting step of the de novo pyrimidine biosynthesis. DHODH inhibition results in beneficial immunosuppressant and antiproliferative effects in diseases such as rheumatoid arthritis. Here, we present high-resolution X-ray structures of human DHODH in complex with a novel class of low molecular weight compounds that inhibit the enzyme in the nanomolar range. Some compounds showed an interesting dual binding mode within the same cocrystal strongly depending on the nature of chemical substitution. Measured in vitro activity data correlated with the prevailing mode of binding and explained the observed structure-activity relationship. Additionally, the X-ray data confirmed the competitive nature of the inhibitors toward the putative ubiquinone binding site and will guide structure-based design and synthesis of molecules with higher activity.

PubMed: 16480261
DOI: 10.1021/jm0506975

実験手法

X-RAY DIFFRACTION (1.8 Å)