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Efficient and robust isolation of rabbit scFv antibodies using antigen-coupled multilamellar vesicles

J Biosci Bioeng. 2020-11; 
Yoichi Kumada, Yuya Hasegawa, Jun-Ichi Horiuchi
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Proteins, Expression, Isolation and Analysis … pT7MM (14) a derivative of pT7Blue, was used for constructing the pPLFMAΔ250pIIIpMM vector … The scFv gene, containing the VH and VL domains connected by the (Gly4Ser)3 flexible linker, was synthesized chemically using Genscript … Get A Quote

摘要

We demonstrated an efficient screening method for rabbit scFv antibodies using antigen-coupled multi-lamellar vesicles (Ag-MLVs) as solid supports. Model phages displaying mouse anti-human IgG scFv at a probability of 10-10% were successfully isolated by Ag-MLVs after 3 or less rounds of biopanning, whereas they could not be isolated using conventional antigen-coated immunotubes. This screening method was applied to isolate rabbit antigen-specific scFvs from 4 different phage libraries. Biopanning procedures employing Ag-MLVs yielded positive phages in the 3rd round or earlier, and specific antigen-binding of scFvs was observed after the 1st round in two biopanning selections. The dissociation rate constants (k... More

关键词

Biopanning, Dissociation rate constant, Multilamellar vesicles, Phage display, Rabbit scFv
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