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    • 3. 发明公开
    • 양이온성 아미노산이 부가된 융합단백질 및 이를 이용한생물공정의 개선방법
    • 含有附加阳离子氨基酸的融合蛋白和使用相同的生物操作改良
    • KR1020030034136A
    • 2003-05-01
    • KR1020037002004
    • 2001-08-17
    • 주식회사 바이오앤진신철수재단법인서울대학교산학협력재단
    • 서진호권대혁한남수라찬수
    • C07K19/00
    • C12N9/1074C07K1/1136C07K19/00
    • PURPOSE: A fusion protein containing additional cationic amino acids and an improvement method of bio-operation by using same fusion protein are provided, which cationic fusion gene can be used to enhance the purification, immobilization and refolding of a desired target protein. CONSTITUTION: The fusion protein comprises a target protein and more than two consecutive cationic amino acid residues, which are selected from lysine and arginine, fused to the target protein, wherein the number of the cationic amino acid residues is 6 to 15; the cationic amino acid residues are fused to the N-terminal or C-terminal of the target protein or located anywhere within the protein provided that they do not adversely affect the function of the protein; and the target protein is cyclodextrin glycosyltransferase (CGTase), lipase, disulfide-bond-promoting enzyme, disulfide bond isomerase, or proline isomerase.
    • 目的:提供含有其他阳离子氨基酸的融合蛋白和使用相同融合蛋白的生物操作改进方法,该阳离子融合基因可用于增强所需靶蛋白的纯化,固定和重折叠。 构成:融合蛋白包含与靶蛋白融合的靶蛋白和选自赖氨酸和精氨酸的两个以上连续的阳离子氨基酸残基,其中阳离子氨基酸残基的数目为6〜15; 阳离子氨基酸残基融合到靶蛋白的N末端或C-末端,或位于蛋白质内的任何位置,只要它们不会不利地影响蛋白质的功能; 靶蛋白是环糊精糖基转移酶(CGTase),脂肪酶,二硫键促进酶,二硫键异构酶或脯氨酸异构酶。