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Updated: Jan 9, 2026
Author Spotlight: Evaluating Biophysical Assays for Characterizing PROTACS Ternary Complexes
Published on: January 12, 2024
Applications of KinTek Explorer Kinetic Simulations of Targeted Protein Degradation for Evaluation and Design of
Yacheng Liu1, Jiexin Wu2, Danqi Chen2
1Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
Abstract:
Targeted protein degradation (TPD) technology centered on proteolysis-targeting chimeras (PROTACs) has become an increasingly transformative paradigm in drug discovery. PROTACs, by association with a disease-related target protein of interest and an E3 ligase, form a ternary complex in which the target protein undergoes subsequent ubiquitination and proteasomal degradation. This unique event-driven mechanism of action underscores the importance of kinetic simulation in facilitating the understanding of the kinetic parameters in TPD processes within a kinetic context to guide PROTAC design and optimization. Here, we employ KinTek Explorer to develop kinetic models for simulating PROTAC-induced ternary complex formation and the subsequent mechanistic steps leading to TPD. We illustrate the effects of, and interplay between, PROTAC binding specificity, affinity, cooperativity, and mechanism in complex TPD scenarios. Our findings highlight the effectiveness of KinTek Explorer in TPD kinetic simulation to facilitate PROTAC design.
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