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    • 79. 发明公开
    • 단백질 발현 제어가 가능한 재조합 발현벡터
    • 可控重组蛋白表达载体
    • KR1020070000822A
    • 2007-01-03
    • KR1020050056457
    • 2005-06-28
    • 한국생명공학연구원
    • 권오석임재명홍미주조민호강현아오두병김철호이상기
    • C12N15/70C12N15/63
    • Controllable recombinant protein expression vectors are provided to control expression of a target protein and induce high efficiency expression of the target protein in various microorganisms using inexpensive inducing agents. The recombinant vector contains a promoter whose expression is controlled by iron ion concentration, and a gene encoding a protein capable of inhibiting the expression of the promoter by binding with the iron ion, wherein the promoter is the total or part DNA fragments of entC gene, represented by SEQ ID NO:1; the protein gene is the total or partial DNA fragments of fur gene encoding a transcription control protein Fur of Escherichia coli; the recombinant vector is pOS2, pOS3, pOS2-lacZ or pOS3-lacZ(KCTC 10816BP). The expression of the target protein is controlled by control of iron ion concentration in the medium with chelating agents or iron compounds.
    • 提供可控重组蛋白质表达载体以控制靶蛋白的表达,并使用廉价的诱导剂诱导靶蛋白在各种微生物中的高效表达。 重组载体含有表达受铁离子浓度控制的启动子,以及编码能够通过与铁离子结合来抑制启动子表达的蛋白质的基因,其中启动子是entC基因的全部或部分DNA片段, 由SEQ ID NO:1表示; 蛋白质基因是编码大肠杆菌转录调控蛋白Fur的毛皮基因的全部或部分DNA片段; 重组载体是pOS2,pOS3,pOS2-lacZ或pOS3-lacZ(KCTC 10816BP)。 通过用螯合剂或铁化合物控制介质中的铁离子浓度来控制靶蛋白的表达。