Abstract:
Objective To obtain highly specific VvhA cytolysin single-chain antibody, we used phage display technology to establish a murine phage single-chain antibody library.
Methods After immunizing BALB/c mice with cytolysin protein, the total RNA was extracted from the spleen, and cDNA was obtained by reverse transcription. The cDNA was used as a template to amplify the antibody light chain and heavy chain variable region gene fragments, and OE-PCR technology was used to splice a complete scFv gene fragment. The recombinant phagemid pComb3XSS-scFv was constructed and electrotransformed into E. coli XL1-Blue to construct a phage single-chain antibody library.
Results The recombination rate of the mouse-derived single-chain antibody phage library was 78% and the library capacity was 3×108.
Conclusion The murine single-chain antibody phage library is successfully constructed and lays the foundation for the early diagnosis of Vibrio vulnificus infection.
Key words:
Vibrio vulnificus,
VvhA,
Phage display,
scFv
Zhen Pan, Jiemin Chen, Chengjin Hu. Construction of mouse-derived phage display library of scFv fragments against Vibrio vulnificus VvhA[J]. Chinese Journal of Hygiene Rescue(Electronic Edition), 2021, 07(05): 287-291.