MZP-54

Target: MZP-54 targets BET proteins, preferentially degrading BRD3 and BRD4 over BRD2.

Binding site: Its I-BET726-derived ligand binds BET bromodomain acetyl-lysine pockets.

Mechanism of action: MZP-54 is a VHL-based BET PROTAC constructed from an I-BET726-derived BRD3/4 ligand linked to the VHL ligand VH032. By recruiting BET proteins to the VHL-ElonginC-ElonginB E3 ligase complex, MZP-54 promotes target ubiquitination and proteasome-mediated degradation. It shows preferential depletion of BRD3 and BRD4 at nanomolar concentrations, supporting selective investigation of BET-family chromatin readers. MZP-54 is useful for studying bromodomain protein turnover, c-MYC pathway suppression, BET paralog selectivity, and the influence of linker geometry on degradation efficiency.

• PROTAC-Mediated Kinase Degradation: MZP-54 is designed to facilitate the targeted degradation of kinases, offering a novel approach to studying kinase signaling pathways. By inducing the selective ubiquitination and proteasomal degradation of specific kinases, researchers can dissect complex signaling networks and identify potential therapeutic targets.

• Targeted Degradation in Oncology Research: MZP-54 serves as a powerful tool for investigating the role of oncogenic proteins in cancer. Through its ability to degrade cancer-associated proteins selectively, this PROTAC enables the exploration of novel anti-cancer strategies and the identification of key regulatory proteins involved in tumor progression.

• Exploring Protein-Protein Interactions: Utilizing MZP-54 allows researchers to probe the dynamics of protein-protein interactions by degrading one component of a complex. This targeted degradation approach provides insights into the functional role of protein complexes and aids in mapping interaction networks crucial for cellular processes.

• Advancing Neurodegenerative Disease Models: MZP-54 is instrumental in modeling neurodegenerative diseases by targeting and degrading proteins implicated in these disorders. This application helps elucidate the pathological mechanisms underlying neurodegeneration and supports the development of targeted therapeutic interventions.