Effect of Nucleotide Sequences of Polypeptide Linkers on Production of Soluble Single-Chain Fv Antibodies
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概要
- 論文の詳細を見る
Effects of nucleotide sequences of polypeptide linkers on production of soluble single-chain Fv antibodies in E. coli were studied using scFv genes, in which genes of VH and VL domains were genetically linked with 4 types of linker genes with or without rare codons, namely genes of scFv (G4S)3, scFv (G4S)3R, scFv No. 10 and scFv No. 10NR. The transformants expressing scFvs having linkers with 3–4 rare codons (scFv (G4S)3R and scFv No. 10) could grow to higher cell concentrations under induction condition, while growth of the cells expressing scFvs having linkers without rare codon (scFv (G4S)3 and scFv No. 10NR) stopped after 3 h. Productivity levels of soluble scFv by cells expressing scFv (G4S)3R and scFv No. 10 were higher than those of scFv (G4S)3 and scFv No. 10NR. The specific productivity levels of inclusion bodies for scFv (G4S)3R and scFv No. 10 decreased in comparison with those for scFv (G4S)3 and scFv No. 10NR. This might show that decrease in the translation rate at the region coding polypeptide linkers with rare codons has a favorable effect for the subsequent folding process of scFv molecules. Furthermore, from a SPR analysis using an antigen-immobilized sensor chip, scFv (G4S)3R showed the same binding affinity as the original scFv (G4S)3. Thus, nucleotide sequences of polypeptide linkers are important to increase productivity of scFv expressed in soluble fraction. The nucleotide sequence of the flexible linker (G4S)3R used in this study may be useful for efficient production of various scFvs without loss of the binding affinity of target scFv.
- 社団法人 化学工学会の論文
- 2008-05-01
著者
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Kumada Yoichi
Department Of Bioscience And Biotechnology Okayama University
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Kawasaki Tomomi
Graduate School Of Engineering Department Of Chemical Science And Engineering Kobe University
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Katoh Shigeo
Graduate School Of Engineering Department Of Chemical Science And Engineering Kobe University:depart
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Kikuchi Yasufumi
Graduate School Of Engineering Department Of Chemical Science And Engineering Kobe University
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Sakan Yoshinobu
Graduate School of Engineering, Department of Chemical Science and Engineering, Kobe University
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Sakan Yoshinobu
Graduate School Of Engineering Department Of Chemical Science And Engineering Kobe University
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