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    • 1. 发明申请
    • METHOD FOR CELL SURFACE DISPLAYING OF TARGET PROTEINS USING BACILLUS ANTHRACIS EXOSPORIUM
    • 使用BACILLUS ANTHRACIS EXOSPORIUM的目标蛋白的细胞表面显示方法
    • WO2007078127B1
    • 2007-12-27
    • PCT/KR2006005886
    • 2006-12-29
    • KOREA ADVANCED INST SCI & TECHLEE SANG YUPPARK TAE JUNGHEO NAM SU
    • LEE SANG YUPPARK TAE JUNGHEO NAM SU
    • C12N15/64C12N15/63C12N15/70
    • C07K14/32C07K16/00C07K2317/622C07K2319/00C12N15/70C12P21/02
    • The present invention relates to a method for expressing a target protein on the surface of a microorganism using Bacillus anthracis exosporium protein. More particularly, to an expression vector constructed such that it comprises bclA gene encoding Bacillus anthracis exosporium protein BcIA or fragements thereof as a cell surface anchoring motif and the target protein can be expressed on the surface of a cell in a form fused with BcIA or a fragment thereof when the gene encoding the target protein is expressed in a host cell, as well as, a method for expressing a target protein on the surface of a microorganism using the vector. The expression vector according to the present invention is capable of effectively expressing a target protein or a peptide on the cell surface using BcIA, Bacillus anthracis exosporium protein as a cell surface anchoring motif, and since a target protein can be stably expressed on the cell surface in large amounts by culturing a microorganism transformed with the expression vector, thus making it possible to effectively use for the various purposes of recombinant live vaccines, whole cells absorbents, whole cell bioconversion and the like.
    • 本发明涉及使用炭疽芽孢杆菌外芽孢蛋白在微生物表面上表达靶蛋白的方法。 更具体地说,涉及构建成使得其包含编码作为细胞表面锚定基序的芽孢杆菌属炭疽芽孢杆菌蛋白BcIA或其残基的bclA基因的表达载体,并且靶蛋白可以以与BcIA或BcIA融合的形式在细胞表面表达 当在宿主细胞中表达编码靶蛋白的基因时,使用该载体在微生物表面上表达靶蛋白的方法。 根据本发明的表达载体能够使用BcIA,炭疽芽孢杆菌外芽蛋白作为细胞表面锚定基序在细胞表面上有效地表达靶蛋白或肽,并且由于靶蛋白可以在细胞表面上稳定表达 通过培养用表达载体转化的微生物,可大量使用,从而可有效地用于重组活疫苗,全细胞吸收剂,全细胞生物转化等的各种目的。
    • 3. 发明申请
    • BIOSENSOR USING CONDUCTIVE GRAPHENES AND PREPARATION METHOD THEREOF
    • 使用导电石墨的生物传感器及其制备方法
    • WO2009157739A3
    • 2010-04-01
    • PCT/KR2009003482
    • 2009-06-26
    • KOREA ADVANCED INST SCI & TECHLEE SANG YUPPARK TAE JUNGHONG WON HIJUNG HEE TAEPARK HO SEOKCHOI BONG GILL
    • LEE SANG YUPPARK TAE JUNGHONG WON HIJUNG HEE TAEPARK HO SEOKCHOI BONG GILL
    • C01B31/02
    • G01N33/5438B82Y30/00B82Y40/00C01B32/194C12Q1/004
    • The present invention relates to a biosensor using conductive graphenes and a preparation method thereof, and more particularly, to a biosensor and a preparation method thereof, which uses a conductive graphene prepared using chemical functional groups or a conductive graphine to which a bioreceptor is attached, the bioreceptor being selectively combined to a target biomaterial on a laminated conductive graphene film repeatedly overlaid with the conductive graphenes in order to have a high surface density on a substrate. The conductive graphene biosensor according to the present invention has a large surface area and excellent electric conductivity, and thus can increase the immobilization rate of biological molecules, such as DNA, and enhance the detection sensitivity for biological molecules. In addition, by either directly detecting various target biomolecules or detecting electrochemical signals, the present invention can accurately detect reactions of biomaterials and bioreceptors on a large scale at once, and can introduce a detection method by which an accurate measurement, even of a small amount of source, can be obtained.
    • 本发明涉及一种使用导电石墨烯的生物传感器及其制备方法,更具体地说,涉及一种生物传感器及其制备方法,该生物传感器及其制备方法使用使用化学官能团或连接有生物受体的导电石墨制备的导电石墨烯, 生物受体被选择性地组合到层叠的导电石墨烯膜上的目标生物材料上,所述层压导电石墨烯膜与导电石墨烯重复地重叠以在基底上具有高的表面密度。 根据本发明的导电石墨烯生物传感器具有大的表面积和优异的导电性,因此可以增加DNA等生物分子的固定化率,提高生物分子的检测灵敏度。 另外,通过直接检测各种目标生物分子或检测电化学信号,本发明可以一次性地大规模地精确地检测生物材料和生物感应器的反应,并且可以引入检测方法,通过该方法进行精确的测量,甚至少量 的来源,可以获得。