3BDJ

Crystal Structure of Bovine Milk Xanthine Dehydrogenase with a Covalently Bound Oxipurinol Inhibitor

3BDJ の概要

• エントリーDOI: 10.2210/pdb3bdj/pdb
• 分子名称: Xanthine dehydrogenase/oxidase, CALCIUM ION, FE2/S2 (INORGANIC) CLUSTER, ... (10 entities in total)
• 機能のキーワード: oxypurinol, oxipurinol, alloxanthine, allopurinol, covalently bound inhibitor, xanthine oxidase, xanthine oxidoreductase, xanthine dehydrogenase, fad, flavoprotein, iron-sulfur, molybdopterin, peroxisome, oxidoreductase
• 由来する生物種: Bos taurus (Bovine)
• 細胞内の位置: Cytoplasm (By similarity): P80457
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 298490.44

構造登録者

Eger, B.T.,Okamoto, K.,Nishino, T.,Pai, E.F.,Nishino, T. (登録日: 2007-11-14, 公開日: 2008-11-25, 最終更新日: 2023-08-30)

主引用文献

Okamoto, K.,Eger, B.T.,Nishino, T.,Pai, E.F.,Nishino, T.
Mechanism of inhibition of xanthine oxidoreductase by allopurinol: crystal structure of reduced bovine milk xanthine oxidoreductase bound with oxipurinol.
Nucleosides Nucleotides Nucleic Acids, 27:888-893, 2008

PubMed Abstract: Inhibitors of xanthine oxidoreductase block conversion of xanthine to uric acid and are therefore potentially useful for treatment of hyperuricemia or gout. We determined the crystal structure of reduced bovine milk xanthine oxidoreductase complexed with oxipurinol at 2.0 A resolution. Clear electron density was observed between the N2 nitrogen of oxipurinol and the molybdenum atom of the molybdopterin cofactor, indicating that oxipurinol coordinated directly to molybdenum. Oxipurinol forms hydrogen bonds with glutamate 802, arginine 880, and glutamate 1261, which have previously been shown to be essential for the enzyme reaction. We discuss possible differences in the hypouricemic effect of inhibitors, including allopurinol and newly developed inhibitors, based on their mode of binding in the crystal structures.

PubMed: 18600558
DOI: 10.1080/15257770802146577

実験手法

X-RAY DIFFRACTION (2 Å)