Thursday, January 28, 2021

Chemoproteomics-enabled discovery of covalent RNF114-based degraders that mimic natural product function [@DanNomura, @j_sprads]

Luo M, Spradlin JN,  Boike L, Tong B, Brittain SM, McKenna JM, Tallarico JA, Schirle M, Maimone TJ#, Nomura DK

Cell Chemical Biology, 2021

DOI:https://doi.org/10.1016/j.chembiol.2021.01.005

The translation of functionally active natural products into fully synthetic small-molecule mimetics has remained an important process in medicinal chemistry. We recently discovered that the terpene natural product nimbolide can be utilized as a covalent recruiter of the E3 ubiquitin ligase RNF114 for use in targeted protein degradation—a powerful therapeutic modality within modern-day drug discovery. Using activity-based protein profiling-enabled covalent ligand-screening approaches, here we report the discovery of fully synthetic RNF114-based recruiter molecules that can also be exploited for PROTAC applications, and demonstrate their utility in degrading therapeutically relevant targets, such as BRD4 and BCR-ABL, in cells. The identification of simple and easily manipulated drug-like scaffolds that can mimic the function of a complex natural product is beneficial in further expanding the toolbox of E3 ligase recruiters, an area of great importance in drug discovery and chemical biology.



Oncogenic KRAS G12C: Kinetic and Redox Characterization of Covalent Inhibition

Minh V. Huynh, Derek Parsonage, Tom E. Forshaw, Venkat R. Chirasani, G. Aaron Hobbs, Hanzhi Wu, Jingyun Lee, Cristina M. Furdui, Leslie B. P...