3RTH

Structure of Bace-1 (Beta-Secretase) in Complex with 6-(2-(3,3-Dimethylbut-1-ynyl)phenyl)quinolin-2-amine

3RTH の概要

• エントリーDOI: 10.2210/pdb3rth/pdb
• 関連するPDBエントリー: 3RSV 3RSX 3RTM 3RTN
• 分子名称: Beta-secretase 1, IODIDE ION, 6-[2-(3,3-dimethylbut-1-yn-1-yl)phenyl]quinolin-2-amine, ... (4 entities in total)
• 機能のキーワード: aspartic protease, hydrolase-hydrolase inhibitor complex, hydrolase/hydrolase inhibitor
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Membrane; Single-pass type I membrane protein: P56817
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 46630.46

構造登録者

Sickmier, E.A. (登録日: 2011-05-03, 公開日: 2011-08-31, 最終更新日: 2024-10-30)

主引用文献

Cheng, Y.,Judd, T.C.,Bartberger, M.D.,Brown, J.,Chen, K.,Fremeau, R.T.,Hickman, D.,Hitchcock, S.A.,Jordan, B.,Li, V.,Lopez, P.,Louie, S.W.,Luo, Y.,Michelsen, K.,Nixey, T.,Powers, T.S.,Rattan, C.,Sickmier, E.A.,St Jean, D.J.,Wahl, R.C.,Wen, P.H.,Wood, S.
From Fragment Screening to In Vivo Efficacy: Optimization of a Series of 2-Aminoquinolines as Potent Inhibitors of Beta-Site Amyloid Precursor Protein Cleaving Enzyme 1 (BACE1).
J.Med.Chem., 54:5836-5857, 2011

PubMed Abstract: Using fragment-based screening of a focused fragment library, 2-aminoquinoline 1 was identified as an initial hit for BACE1. Further SAR development was supported by X-ray structures of BACE1 cocrystallized with various ligands and molecular modeling studies to expedite the discovery of potent compounds. These strategies enabled us to integrate the C-3 side chain on 2-aminoquinoline 1 extending deep into the P2' binding pocket of BACE1 and enhancing the ligand's potency. We were able to improve the BACE1 potency to subnanomolar range, over 10(6)-fold more potent than the initial hit (900 μM). Further elaboration of the physical properties of the lead compounds to those more consistent with good blood-brain barrier permeability led to inhibitors with greatly improved cellular activity and permeability. Compound 59 showed an IC(50) value of 11 nM on BACE1 and cellular activity of 80 nM. This compound was advanced into rat pharmacokinetic and pharmacodynamic studies and demonstrated significant reduction of Aβ levels in cerebrospinal fluid (CSF).

PubMed: 21707077
DOI: 10.1021/jm200544q

実験手法

X-RAY DIFFRACTION (2.7 Å)