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    • 6. 发明申请
    • BIOLOGICALLY PRODUCED CYCLIC AFFINITY TAGS
    • 生物循环生物标签
    • WO2010151126A1
    • 2010-12-29
    • PCT/NL2010/050389
    • 2010-06-23
    • APPLIED NANOSYSTEMS B.V.BOSMA, TjibbeKUIPERS, AnnekeRINK, RickMOLL, Gert Nikolaas
    • BOSMA, TjibbeKUIPERS, AnnekeRINK, RickMOLL, Gert Nikolaas
    • C07K7/50
    • C07K7/06C07K1/22C07K5/0812C07K5/1016C07K14/4703C12P21/02
    • The invention relates to novels ways of introducing an affinity tag into a protein of interest. Provided is an enzymatic method for providing a proteinaceous substance comprising a polypeptide of interest and a cyclic affinity tag, comprising the steps of: (a) providing at least one precursor proteinaceous substance, the precursor comprising said protein of interest and at least one motif of the general formula X1-Tag-X2, wherein X1 and X2 represent amino acids whose side chains can be linked enzymatically by a covalent bond; Tag is a short amino acid sequence capable of binding to a binding partner of the tag when cyclized; (b) contacting said precursor with at least one enzyme capable of forming a covalent bond between X1 and X2, thereby introducing an intramolecular ring structure comprising the Tag sequence; and (c) isolating the resulting cyclized proteinaceous substance. Also provided are proteinaceous substances obtainable thereby and the use thereof, for instance for preparing a peptide library.
    • 本发明涉及将亲和标签引入感兴趣的蛋白质的方法。 本发明提供了一种用于提供包含感兴趣的多肽和环状亲和标签的蛋白质物质的酶法,其包括以下步骤:(a)提供至少一种前体蛋白质物质,所述前体蛋白质物质包含所述目的蛋白质和至少一种 通式X1-Tag-X2,其中X1和X2表示其侧链可以通过共价键酶联的氨基酸; 标签是一个短的氨基酸序列,当环化时能够结合标签的结合配偶体; (b)使所述前体与能够在X 1和X 2之间形成共价键的至少一种酶接触,从而引入包含Tag序列的分子内环结构; 和(c)分离得到的环化蛋白质物质。 还提供了可获得的蛋白质物质及其用途,例如用于制备肽文库。
    • 7. 发明申请
    • METHODS FOR THE PRODUCTION AND SECRETION OF MODIFIED PEPTIDES
    • 方法的生产和分配修饰多肽
    • WO2006062398A2
    • 2006-06-15
    • PCT/NL2005/000842
    • 2005-12-07
    • Applied NanoSystems B.V.MOLL, Gert NikolaasKUIPERS, AnnekeRINK, RickDRIESSEN, Arnold Jacob MathieuKUIPERS, Oscar Paul
    • MOLL, Gert NikolaasKUIPERS, AnnekeRINK, RickDRIESSEN, Arnold Jacob MathieuKUIPERS, Oscar Paul
    • C12N15/62C12P21/02
    • C12N15/625
    • The invention relates to the production of heterologous polypeptides in a recombinant host cell. More specifically, it relates to the production and secretion of peptides, such as biologically active peptides, that are modified by one or more lantibiotic-synthesizing enzymes. Provided is a nucleic acid construct encoding a polypeptide comprising 1) a non-lantibiotic export signal that is recognized by a non-lantibiotic export system; 2) a lantibiotic leader peptide that is recognized by at least a lantibiotic dehydratase such as LanB and, C-terminally of said export signal and said leader peptide, 3) a peptide of interest containing one or more serine or threonine residue(s) which can be posttranslationally dehydrated by said dehydratase. Also provided is a method for producing a polypeptide in a host cell, comprising providing a host cell with a nucleic acid construct according to the invention and allowing expression and secretion of the encoded polypeptide by said host cell, wherein said host cell comprises at least a dehydratase capable of modifying said encoded polypeptide and a non-lantibiotic export system capable of secreting said modified polypeptide.
    • 本发明涉及在重组宿主细胞中生产异源多肽。 更具体地说,它涉及被一种或多种羊毛硫抗生素合成酶修饰的肽(例如生物活性肽)的产生和分泌。 提供编码多肽的核酸构建体,其包含1)由非羊毛硫抗生素输出系统识别的非羊毛硫抗生素输出信号; 2)被至少一种羊毛硫抗生素脱水酶如LanB和所述输出信号和所述前导肽的C端识别的羊毛硫抗生素前导肽,3)一种含有一个或多个丝氨酸或苏氨酸残基的感兴趣的肽, 可以通过所述脱水酶进行翻译后脱水。 还提供了用于在宿主细胞中产生多肽的方法,包括向宿主细胞提供根据本发明的核酸构建体并且允许所述宿主细胞表达和分泌编码的多肽,其中所述宿主细胞包含至少一个 能够修饰所述编码的多肽的脱水酶和能够分泌所述修饰的多肽的非羊毛硫抗生素输出系统。
    • 9. 发明申请
    • METHODS FOR THE PRODUCTION AND SECRETION OF MODIFIED PEPTIDES
    • 改性肽的生产和分泌方法
    • WO2006062398A3
    • 2006-10-19
    • PCT/NL2005000842
    • 2005-12-07
    • APPLIED NANOSYSTEMS BVMOLL GERT NIKOLAASKUIPERS ANNEKERINK RICKDRIESSEN ARNOLD JACOB MATHIEUKUIPERS OSCAR PAUL
    • MOLL GERT NIKOLAASKUIPERS ANNEKERINK RICKDRIESSEN ARNOLD JACOB MATHIEUKUIPERS OSCAR PAUL
    • C12N15/62C12P21/02
    • C12N15/625
    • The invention relates to the production of heterologous polypeptides in a recombinant host cell. More specifically, it relates to the production and secretion of peptides, such as biologically active peptides, that are modified by one or more lantibiotic-synthesizing enzymes. Provided is a nucleic acid construct encoding a polypeptide comprising 1) a non-lantibiotic export signal that is recognized by a non-lantibiotic export system; 2) a lantibiotic leader peptide that is recognized by at least a lantibiotic dehydratase such as LanB and, C-terminally of said export signal and said leader peptide, 3) a peptide of interest containing one or more serine or threonine residue(s) which can be posttranslationally dehydrated by said dehydratase. Also provided is a method for producing a polypeptide in a host cell, comprising providing a host cell with a nucleic acid construct according to the invention and allowing expression and secretion of the encoded polypeptide by said host cell, wherein said host cell comprises at least a dehydratase capable of modifying said encoded polypeptide and a non-lantibiotic export system capable of secreting said modified polypeptide.
    • 本发明涉及在重组宿主细胞中产生异源多肽。 更具体地,本发明涉及由一种或多种羊毛硫素合成酶修饰的肽(例如生物活性肽)的产生和分泌。 本发明提供了编码多肽的核酸构建体,其包括1)非耐药物生物出口信号,其被非拉丁生物出口系统识别; 2)由至少一种羊毛硫抗生素脱水酶(例如LanB)和所述出口信号和所述前导肽的C-末端识别的羊毛硫素前导肽,3)感兴趣的肽含有一个或多个丝氨酸或苏氨酸残基,其中 可以通过所述脱水酶进行翻译后脱水。 还提供了在宿主细胞中产生多肽的方法,其包括向宿主细胞提供根据本发明的核酸构建体,并允许所述宿主细胞表达和分泌编码的多肽,其中所述宿主细胞至少包含 能够修饰所述编码的多肽的脱水酶和能够分泌所述修饰的多肽的非拉链菌素出口系统。