Related Experiment Video
Updated: Jul 29, 2026
12:05
Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies
Published on: March 6, 2013
14.1K
Optimizing Solid-Phase Protein Synthesis Using CPG-2000 and a Nickel-Cleavable SNAC-tag Linker
Jianyi Han1,2,3,4, Bobo Dang1,2,3,4
1College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.
Organic Letters
|February 24, 2025
Summary
Optimized solid-phase chemical ligation (SPCL) using controlled-pore glass and a cleavable linker successfully synthesized a 131-amino-acid protein. This improved method achieved a 25% yield for de novo protein synthesis.
Area of Science:
- Biochemistry
- Chemical Biology
- Synthetic Biology
Background:
- Solid-phase chemical ligation (SPCL) is a key technique for synthesizing proteins.
- Existing SPCL methods face limitations in orthogonal protection, solid support efficiency, and linker diversity.
- Overcoming these challenges is crucial for advancing de novo protein synthesis.
Purpose of the Study:
- To optimize solid-phase chemical ligation (SPCL) for efficient de novo protein synthesis.
- To address limitations of current SPCL methods by improving solid supports and linker strategies.
Main Methods:
- Developed an optimized SPCL system by combining low-loading controlled-pore glass (CPG-2000) with a nickel-cleavable SNAC-tag linker.
- Utilized this optimized system for the assembly of multiple peptide fragments.
Main Results:
- Successfully assembled five peptide fragments using the optimized SPCL system.
- Achieved efficient synthesis of a 131-amino-acid de novo protein.
- Obtained a protein synthesis yield of 25%.
Conclusions:
- The optimized SPCL system, integrating CPG-2000 and a SNAC-tag linker, significantly enhances protein synthesis efficiency.
- This method provides a robust platform for the de novo synthesis of large, complex proteins.
- The improved SPCL approach offers a valuable tool for biochemical and synthetic biology research.
