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Time-resolved protein activation by proximal decaging in living systems
Jie Wang1,2, Yuan Liu1, Yanjun Liu1
1Synthetic and Functional Biomolecules Center, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China.
Researchers developed a new method, CAGE-prox, for precisely controlling protein activity in cells and animals. This technique allows for time-resolved activation of proteins, advancing the study of dynamic biological processes.
Area of Science:
- Molecular Biology
- Biochemistry
- Genetics
Background:
- Understanding dynamic cellular processes requires precise control over protein activity.
- Existing methods for temporal protein activation have limitations.
Purpose of the Study:
- To develop a universal, computationally aided, and genetically encoded strategy for selective and temporal control of protein activity.
- To enable time-resolved gain-of-function studies in living systems.
Main Methods:
- Developed the CAGE-prox (computationally aided and genetically encoded proximal decaging) strategy.
- Genetically incorporated photo-caged amino acids near protein functional sites.
- Utilized computational design for temporal protein activity blockage and rapid light-induced re-activation.
Main Results:
- Demonstrated broad applicability across diverse protein families.
- Enabled orthogonal tuning of cell signaling and immune responses.
- Facilitated temporal profiling of proteolytic substrates and development of protein-based pro-drug therapy.
Conclusions:
- CAGE-prox offers a powerful tool for precise, time-resolved gain-of-function studies.
- The method advances the understanding of dynamic biological processes in living cells and mice.
- Paves the way for new therapeutic strategies and biological research avenues.
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