Druggability Analysis and Structural Classification of Bromodomain Acetyl-lysine Binding Sites

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• 作者：Lewis R. Vidler ; Nathan Brown ; Stefan Knapp ; Swen Hoelder
• 刊名：Journal of Medicinal Chemistry
• 出版年：2012
• 出版时间：September 13, 2012
• 年：2012
• 卷：55
• 期：17
• 页码：7346-7359
• 全文大小：731K
• 年卷期：v.55,no.17(September 13, 2012)
• ISSN：1520-4804

文摘

Bromodomains are readers of the epigenetic code that specifically bind acetyl-lysine containing recognition sites on proteins. Recently the BET family of bromodomains has been demonstrated to be druggable through the discovery of potent inhibitors, sparking an interest in protein鈥損rotein interaction inhibitors that directly target gene transcription. Here, we assess the druggability of diverse members of the bromodomain family using SiteMap and show that there are significant differences in predicted druggability. Furthermore, we trace these differences in druggability back to unique amino acid signatures in the bromodomain acetyl-lysine binding sites. These signatures were then used to generate a new classification of the bromodomain family, visualized as a classification tree. This represents the first analysis of this type for the bromodomain family and can prove useful in the discovery of inhibitors, particularly for anticipating screening hit rates, identifying inhibitors that can be explored for lead hopping approaches, and selecting proteins for selectivity screening.