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Updated: May 26, 2025

Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies

Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies

Published on: March 6, 2013

Optimizing Solid-Phase Protein Synthesis Using CPG-2000 and a Nickel-Cleavable SNAC-tag Linker.

Jianyi Han^1,2,3,4, Bobo Dang^1,2,3,4

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.

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Last Updated: May 26, 2025

Production of Disulfide-stabilized Transmembrane Peptide Complexes for Structural Studies

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An Inexpensive Adaptation of a Commercial Microwave Reactor for Solid Phase Peptide Synthesis

An Inexpensive Adaptation of a Commercial Microwave Reactor for Solid Phase Peptide Synthesis

Published on: November 22, 2024

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.