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Updated: Jan 22, 2026

Protein Engineering by Yeast Surface Display
Published on: November 29, 2024
An optimized yeast display strategy for efficient scFv antibody selection using ribosomal skipping system and thermo
Yanrong Jia1, Ping Ren2, Shixin Duan1
1College of Life Sciences, Hebei Agricultural University, Baoding, 071001, Hebei, China.
Objectives:
Establish a method to restrict unexpected fragments including stop codons in scFv library and generate a thermo resistant strain for screening of thermal stable scFv sequences.
Results:
Here, we have constructed a T2A-Leu2 system for selection of yeast surface display libraries that blocks amplification of "stop codon" plasmids within the library, thereby increasing the quality of the library and efficiency of the selection screen. Also, we generated a temperature-resistant yeast strain, TR1, and validated its combined use with T2A-Leu2 for efficient screening. Thus, we developed a general approach for a fast and efficient screening of scFv libraries using a ribosomal skipping system and thermo-resistant yeast.
Conclusions:
The method highlights the utility of the T2A-Leu2-based ribosomal skipping strategy for increasing the quality of the input library for selection, along with an optimized selection protocol based on thermo-resistant yeast cells.
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