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Updated: Feb 23, 2026

Simultaneous Affinity Enrichment of Two Post-Translational Modifications for Quantification and Site Localization
Published on: February 27, 2020
Chemical biology approaches for studying posttranslational modifications
Aerin Yang1, Kyukwang Cho1, Hee-Sung Park1
1a Department of Chemistry , Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Yuseong-gu , Daejeon , Republic of Korea.
Posttranslational modification (PTM) regulates protein function and biological processes. Chemical biology strategies enable the creation of homogenous modified proteins for studying PTMs in vitro and in vivo.
Area of Science:
- Biochemistry
- Chemical Biology
- Molecular Biology
Background:
- Posttranslational modification (PTM) is crucial for regulating protein function and essential biological processes.
- Studying PTMs requires obtaining recombinant proteins with precise and uniform modifications.
- Existing methods face challenges in achieving site-specific and authentic PTMs.
Purpose of the Study:
- To review recent advances in chemical biology strategies for PTM studies.
- To highlight the application of these methods in understanding diverse PTMs.
- To emphasize the importance of homogenous modified proteins in biological research.
Main Methods:
- Genetic code expansion techniques.
- Protein chemical modification strategies.
- Development of synthetic and chemical biology approaches.
Main Results:
- Developed methods effectively generate site-specific authentic modifications or structural mimics.
- These techniques have proven valuable for both in vitro and in vivo functional studies.
- Recent advances offer improved control over protein modification.
Conclusions:
- Chemical biology provides powerful tools for investigating PTMs.
- Site-specific protein modification is essential for functional studies.
- Continued development of these strategies will advance our understanding of PTMs and their roles in biology.
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