5MWH

Crystal structure of the human BRPF1 bromodomain in complex with BZ089

5MWH の概要

• エントリーDOI: 10.2210/pdb5mwh/pdb
• 分子名称: Peregrin, ~{N}-[1,4-dimethyl-7-morpholin-4-yl-2,3-bis(oxidanylidene)quinoxalin-6-yl]-4-(2-methylpropyl)benzenesulfonamide, NITRATE ION, ... (4 entities in total)
• 機能のキーワード: bromodomain and phd finger-containing protein 1(brpf1), monocytic leukemia zinc-finger (moz), inhibitor, transcription, dna binding protein
• 由来する生物種: Homo sapiens (Human)
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 28504.57

構造登録者

Zhu, J.,Caflisch, A. (登録日: 2017-01-18, 公開日: 2018-02-14, 最終更新日: 2024-05-08)

主引用文献

Zhu, J.,Zhou, C.,Caflisch, A.
Structure-based discovery of selective BRPF1 bromodomain inhibitors.
Eur J Med Chem, 155:337-352, 2018

PubMed Abstract: Bromodomain and plant homeodomain (PHD) finger containing protein 1 (BRPF1) is a member of subfamily IV of the human bromodomains. Experimental evidence suggests that BRPF1 is involved in leukemia. In a previous high-throughput docking campaign we identified several chemotypes targeting the BRPF1 bromodomain. Here, pharmacophore searches using the binding modes of two of these chemotypes resulted in two new series of ligands of the BRPF1 bromodomain. The 2,3-dioxo-quinoxaline 21 exhibits a 2-μM affinity for the BRPF1 bromodomain in two different competition binding assays, and more than 100-fold selectivity for BRPF1 against other members of subfamily IV and representatives of other subfamilies. Cellular activity is confirmed by a viability assay in a leukemia cell line. Isothermal titration calorimetry measurements reveal enthalpy-driven binding for compounds 21, 26 (K = 3 μM), and the 2,4-dimethyl-oxazole derivative 42 (K = 10 μM). Multiple molecular dynamics simulations and a dozen co-crystal structures at high resolution provide useful information for further optimization of affinity for the BRPF1 bromodomain.

PubMed: 29902720
DOI: 10.1016/j.ejmech.2018.05.037

実験手法

X-RAY DIFFRACTION (1.65 Å)