7QZT

BAZ2A bromodomain in complex with isoquinoline derivative fragment 9

7QZT の概要

• エントリーDOI: 10.2210/pdb7qzt/pdb
• 関連するPDBエントリー: 7QVT 7QVU 7QVV
• 分子名称: Bromodomain adjacent to zinc finger domain protein 2A, ~{N}-[(3~{S})-pyrrolidin-3-yl]isoquinoline-5-sulfonamide (3 entities in total)
• 機能のキーワード: four helical bundle, transcription
• 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: 12658.26

構造登録者

Dalle Vedove, A.,Cazzanelli, G.,Caflisch, A.,Lolli, G. (登録日: 2022-01-31, 公開日: 2022-09-28, 最終更新日: 2024-01-31)

主引用文献

Dalle Vedove, A.,Cazzanelli, G.,Batiste, L.,Marchand, J.R.,Spiliotopoulos, D.,Corsi, J.,D'Agostino, V.G.,Caflisch, A.,Lolli, G.
Identification of a BAZ2A-Bromodomain Hit Compound by Fragment Growing.
Acs Med.Chem.Lett., 13:1434-1443, 2022

PubMed Abstract: BAZ2A is an epigenetic regulator affecting transcription of ribosomal RNA. It is overexpressed in aggressive and recurrent prostate cancer, promoting cellular migration. Its bromodomain is characterized by a shallow and difficult-to-drug pocket. Here, we describe a structure-based fragment-growing campaign for the identification of ligands of the BAZ2A bromodomain. By combining docking, competition binding assays, and protein crystallography, we have extensively explored the interactions of the ligands with the rim of the binding pocket, and in particular ionic interactions with the side chain of Glu1820, which is unique to BAZ2A. We present 23 high-resolution crystal structures of the holo BAZ2A bromodomain and analyze common bromodomain/ligand motifs and favorable intraligand interactions. Binding of some of the compounds is enantiospecific, with affinity in the low micromolar range. The most potent ligand has an equilibrium dissociation constant of 7 μM and a good selectivity over the paralog BAZ2B bromodomain.

PubMed: 36105334
DOI: 10.1021/acsmedchemlett.2c00173

実験手法

X-RAY DIFFRACTION (2.183 Å)