Jia Y, Ren P, Duan S, Zeng P, Xie D, Zeng F. An optimized yeast display strategy for efficient scFv antibody selection using ribosomal skipping system and thermo resistant yeast.
Biotechnol Lett 2019;
41:1067-1076. [PMID:
31300936 DOI:
10.1007/s10529-019-02710-5]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/09/2019] [Indexed: 01/22/2023]
Abstract
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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