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Discovery of I-BRD9, a Selective Cell Active Chemical Probe for Bromodomain Containing Protein 9 Inhibition

Discovery of I-BRD9, a Selective Cell Active Chemical Probe for Bromodomain Containing Protein 9 Inhibition

Natalie H Theodoulou, Paul Bamborough, Andrew J Bannister, Isabelle Becher, Rino A Bit, Ka Hing Che, Chun-wa Chung, Antje Dittmann, Gerard Drewes, David H Drewry, Laurie Gordon, Paola Grandi, Melanie Leveridge, etc.

J Med Chem. 2016 Feb 25;59(4):1425-39.

PMID: 25856009

Abstract:

Acetylation of histone lysine residues is one of the most well-studied post-translational modifications of chromatin, selectively recognized by bromodomain "reader" modules. Inhibitors of the bromodomain and extra terminal domain (BET) family of bromodomains have shown profound anticancer and anti-inflammatory properties, generating much interest in targeting other bromodomain-containing proteins for disease treatment. Herein, we report the discovery of I-BRD9, the first selective cellular chemical probe for bromodomain-containing protein 9 (BRD9). I-BRD9 was identified through structure-based design, leading to greater than 700-fold selectivity over the BET family and 200-fold over the highly homologous bromodomain-containing protein 7 (BRD7). I-BRD9 was used to identify genes regulated by BRD9 in Kasumi-1 cells involved in oncology and immune response pathways and to the best of our knowledge, represents the first selective tool compound available to elucidate the cellular phenotype of BRD9 bromodomain inhibition.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1714146594	I-BRD9		1714146-59-4	Price

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