Expression and Characterization of Recombinant Serratia liquefaciens Nucleases Produced with Baculovirus-mediated Silkworm Expression System

Kazuhiro Iiyama, Man Lee, Tuneyuki Tatsuke, Hiroaki Mon, Takahiro Kusakabe

研究成果: ジャーナルへの寄稿記事

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抄録

Baculovirus-Bombyx mori protein expression system has mainly been used for translation of eukaryotic proteins. In contrast, information pertaining to bacterial protein expression using this system is not sufficient. Therefore, recombinant nucleases from Serratia liquefaciens (rSlNucAs) were expressed in a Baculovirus-B. mori protein expression system. rSlNucAs containing the native signal peptide (rSlNucA-NSP) or silkworm 30-K signal peptide (rSlNucA-30K) at the NH2-terminus were constructed to enable secretion into the extracellular fraction. Both rSlNucA-30K and rSlNucA-NSP were successfully secreted into hemolymph of B. mori larvae. Affinity-purified rSlNucAs showed high nuclease activity. Optimum pH was 7.5 and half of maximum activity was maintained between pH 7.0 and 9.5. Optimum temperature was 35 °C. rSlNucAs showed sufficient activity in twofold-diluted radioimmunoprecipitation assay buffer and undiluted, mild lysis buffer. Genomic DNA of Escherichia coli was efficiently digested by rSlNucAs in the bacterial lysate. The results in this study suggest that rSlNucAs expressed by the Baculovirus-B. mori protein expression system will be a useful tool in molecular biology. Functional recombinant protein of bacteria was produced by Baculovirus-B. mori protein expression system. This system may be highly suitable for bacterial extracellular protein secreted via Sec pathway.

元の言語英語
ページ(範囲)393-403
ページ数11
ジャーナルMolecular Biotechnology
58
発行部数6
DOI
出版物ステータス出版済み - 6 1 2016

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Serratia liquefaciens
Bombyx
Baculoviridae
Proteins
Protein Sorting Signals
Bacterial Proteins
Buffers
Recombinant proteins
Radioimmunoprecipitation Assay
Molecular biology
Recombinant Proteins
Hemolymph
Escherichia coli
Protein Biosynthesis
Assays
Bacteria
DNA
Larva
Molecular Biology
Temperature

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology

これを引用

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abstract = "Baculovirus-Bombyx mori protein expression system has mainly been used for translation of eukaryotic proteins. In contrast, information pertaining to bacterial protein expression using this system is not sufficient. Therefore, recombinant nucleases from Serratia liquefaciens (rSlNucAs) were expressed in a Baculovirus-B. mori protein expression system. rSlNucAs containing the native signal peptide (rSlNucA-NSP) or silkworm 30-K signal peptide (rSlNucA-30K) at the NH2-terminus were constructed to enable secretion into the extracellular fraction. Both rSlNucA-30K and rSlNucA-NSP were successfully secreted into hemolymph of B. mori larvae. Affinity-purified rSlNucAs showed high nuclease activity. Optimum pH was 7.5 and half of maximum activity was maintained between pH 7.0 and 9.5. Optimum temperature was 35 °C. rSlNucAs showed sufficient activity in twofold-diluted radioimmunoprecipitation assay buffer and undiluted, mild lysis buffer. Genomic DNA of Escherichia coli was efficiently digested by rSlNucAs in the bacterial lysate. The results in this study suggest that rSlNucAs expressed by the Baculovirus-B. mori protein expression system will be a useful tool in molecular biology. Functional recombinant protein of bacteria was produced by Baculovirus-B. mori protein expression system. This system may be highly suitable for bacterial extracellular protein secreted via Sec pathway.",
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AU - Lee, Man

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AU - Mon, Hiroaki

AU - Kusakabe, Takahiro

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