Olesya Kharenko, Reena G Patel, S. David Brown, Cyrus Calosing, Andre White, Damodharan Lakshminarasimhan, Robert K Suto, Bryan C Duffy, Douglas B. Kitchen, Kevin G McLure, Henrik C. Hansen, Edward H van der Horst, and Peter R. Young
J. Med. Chem., 2018
BET proteins are key epigenetic regulators that alter transcription by binding to acetylated lysine (AcLys) residues of histones and transcription factors through bromodomains (BDs). The disruption of this interaction with small molecule bromodomain inhibitors is a promising approach to treat various diseases including cancer, autoimmune and cardiovascular diseases. Covalent inhibitors can potentially offer a more durable target inhibition leading to improved in vivo pharmacology. Here we describe the design of covalent inhibitors of BRD4(BD1) that target a methionine in the binding pocket by attaching an epoxide warhead to a suitably oriented non-covalent inhibitor. Using thermal denaturation, MALDI-TOF mass spectrometry and an X-ray crystal structure, we demonstrate that these inhibitors selectively form a covalent bond with Met149 in BRD4(BD1) but not other bromodomains, and provide durable transcriptional and anti-proliferative activity in cell based assays. Covalent targeting of methionine offers a novel approach to drug discovery for BET proteins and other targets.
A blog highlighting recent publications in the area of covalent modification of proteins, particularly relating to covalent-modifier drugs. @CovalentMod on Twitter and @email@example.com on Mastodon
Sunday, September 2, 2018
Design and Characterization of Novel Covalent Bromodomain and Extra-terminal Domain (BET) Inhibitors Targeting a Methionine
Covalent drug discovery using sulfur(VI) fluoride exchange warheads
Huang Huang, Lyn H. Jones Expert Opinion on Drug Discovery , 2023 https://doi.org/10.1080/17460441.2023.2218642 Covalent drug discovery has ...
Zhao, Z.; Bourne, P. E. ChemRxiv 2022 . https://doi.org/10.26434/chemrxiv-2022-nlb0m Kinase-targeted drug discovery for cancer therapy ha...
Wang, S.; Hadisurya, M.; Tao, W. A.; Dykhuizen, E.; Krusemark, C. ChemRxiv 2022 . https://doi.org/10.26434/chemrxiv-2022-tvgn1 Targeted co...
Jian Ding, Guo Li, Hejun Liu, Lulu Liu, Ying Lin, Jingyan Gao, Guoqiang Zhou, Lingling Shen, Mengxi Zhao, Yanyan Yu, Weihui Guo, Ulrich Homm...