6R6J

Crystal structure of human carbonic anhydrase isozyme II with 2-(benzenesulfonyl)-4-chloro-N-(2-hydroxyethyl)-5-sulfamoyl-benzamide

6R6J の概要

• エントリーDOI: 10.2210/pdb6r6j/pdb
• 分子名称: Carbonic anhydrase 2, ZINC ION, DIMETHYL SULFOXIDE, ... (6 entities in total)
• 機能のキーワード: drug design, carbonic anhydrase, benzenesulfonamide, metal-binding, lyase-lyase inhibitor complex, lyase
• 由来する生物種: Homo sapiens (Human)
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 30046.71

構造登録者

Smirnov, A.,Manakova, E.,Grazulis, S. (登録日: 2019-03-27, 公開日: 2020-04-08, 最終更新日: 2024-01-24)

主引用文献

Zaksauskas, A.,Capkauskaite, E.,Jezepcikas, L.,Linkuviene, V.,Paketuryte, V.,Smirnov, A.,Leitans, J.,Kazaks, A.,Dvinskis, E.,Manakova, E.,Grazulis, S.,Tars, K.,Matulis, D.
Halogenated and di-substituted benzenesulfonamides as selective inhibitors of carbonic anhydrase isoforms.
Eur.J.Med.Chem., 185:111825-111825, 2020

PubMed Abstract: By applying an approach of a "ring with two tails", a series of novel inhibitors possessing high-affinity and significant selectivity towards selected carbonic anhydrase (CA) isoforms has been designed. The "ring" consists of 2-chloro/bromo-benzenesulfonamide, where the sulfonamide group is as an anchor coordinating the Zn(II) in the active site of CAs, and halogen atom orients the ring affecting the affinity and selectivity. First "tail" is a substituent containing carbonyl, carboxyl, hydroxyl, ether groups or hydrophilic amide linkage. The second "tail" contains aryl- or alkyl-substituents attached through a sulfanyl or sulfonyl group. Both "tails" are connected to the benzene ring and play a crucial role in selectivity. Varying the substituents, we designed compounds selective for CA VII, CA IX, CA XII, or CA XIV. Since due to binding-linked protonation reactions the binding-ready fractions of the compound and protein are much lower than one, the "intrinsic" affinities were calculated that should be used to study correlations between crystal structures and the thermodynamics of binding for rational drug design. The "intrinsic" affinities together with the intrinsic enthalpies and entropies of binding together with co-crystal structures were used demonstrate structural factors determining major contributions for compound affinity and selectivity.

PubMed: 31740053
DOI: 10.1016/j.ejmech.2019.111825

実験手法

X-RAY DIFFRACTION (1.55 Å)