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    • 1. 发明申请
    • RECOMBINANT PRODUCTION OF BIOLOGICALLY ACTIVE PEPTIDES AND PROTEINS
    • 生物活性肽和蛋白质的重组生产
    • WO9604373A2
    • 1996-02-15
    • PCT/US9510219
    • 1995-07-26
    • MAGAININ PHARMA
    • WILLIAMS JON IPIERCE JAMES CANDERSON G MARKKARI PRASAD
    • C07K14/435C07K14/46C12N15/62C12N15/67C12N15/70C12N15/10C07K1/14C07K14/00C12N21/10
    • C07K14/435C07K14/46C07K2319/23C12N15/62C12N15/67C12N15/70
    • The present invention relates to the recombinant production of amphiphilic peptides with biologically and therapeutically significant activities. In one embodiment, this invention relates to recombinantly producing an amphiphilic peptide by providing a protease-deficient microbial host transformed with an expression vector containing DNA that encodes the amphiphilic peptide under the control of a regulatory sequence operable in the microbial host and expressing the amphiphilic peptide in the tranformed microbial host. In another embodiment, this invention relates to providing an E. coli protease-deficient K-12 cell transformed with a vector that expresses a cleavable fusion protein comprising at least part of a carbohydrate binding protein and the amphiphilic peptide in the cell, expressing the fusion protein in the cell, and cleaving the fusion protein to obtain the amphiphilic peptide substantially free of carbohydrate binding protein residues. The biologically active amphiphilic peptide so produced can be further treated chemically or enzymatically to obtain a chemically distinct amphiphilic peptide with improved biological and therapeutic properties.
    • 本发明涉及具有生物学和治疗学重要活性的两亲肽的重组生产。 在一个实施方案中,本发明涉及通过提供用含有编码两亲肽的表达载体转化的蛋白酶缺陷型微生物宿主来重组产生两亲性肽,所述表达载体在可在微生物宿主中操作的调节序列的控制下并表达两亲肽 在转化的微生物宿主中。 在另一个实施方案中,本发明涉及提供用表达可切割融合蛋白的载体转化的大肠杆菌蛋白酶缺陷型K-12细胞,所述载体包含至少部分碳水化合物结合蛋白和细胞中的两亲肽,表达融合 蛋白质,并切割融合蛋白以获得基本上不含碳水化合物结合蛋白质残基的两亲肽。 如此生产的生物活性两亲肽可以进一步进行化学或酶学处理,以获得具有改善的生物学和治疗性质的化学不同的两亲性肽。