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    • 9. 发明公开
    • Mutated recombinant collagens
    • 多克隆重组体Kollagen
    • EP0699752A2
    • 1996-03-06
    • EP95108307.0
    • 1995-05-30
    • COLLAGEN CORPORATION
    • Berg, Richard A.Toman, Paul DavidWallace, Donald G.
    • C12N15/12C07K14/78C12N5/10A61K38/39
    • A23C9/20A01K67/0278A01K2207/15A01K2217/00A01K2217/05A01K2227/10A01K2227/105A01K2267/01A23C2230/05A23J1/20A23J3/06A61K38/00C07K14/78C12N15/8509
    • The invention provides recombinant procollagen chains having a natural collagen chain separated from one or two propeptides by one or two non-natural site-specific proteolytic agent ( e . g ., protease) recognition sites. A wide variety of propeptides and site-specific proteolytic agent recognition sites may be used: the selection of particular site-specific proteolytic agent/recognition site pairs is based on the conformation of the resulting procollagen, the availability of the site-specific proteolytic agent, the compatibility of the proteolysis with production of mature collagen, among other factors. Recombinant collagens chains are produced by contacting the subject recombinant procollagen chains with the appropriate site-specific proteolytic agents. Nucleic acids encoding the subject procollagen chains operably linked to transcription regulatory elements are used in vectors and cells for the production of recombinant collagen. Such collagen is used in tissue and cell cultureware and therapeutically, such as in biodegradable surgical materials and for tissue augmentation.
    • 本发明提供具有通过一个或两个非天然位点特异性蛋白水解剂(例如蛋白酶)识别位点从一个或两个前肽分离的天然胶原链的重组前胶原链。 可以使用多种前肽和位点特异性蛋白水解剂识别位点:特定位点特异性蛋白水解物/识别位点对的选择基于所得原胶原的构象,位点特异性蛋白水解剂的可用性, 蛋白水解与成熟胶原蛋白的相容性等因素。 通过使本发明的重组原胶原链与适当的位点特异性蛋白水解剂接触来产生重组胶原链。 编码与转录调节元件可操作连接的对象前胶原链的核酸用于生产重组胶原的载体和细胞中。 这种胶原蛋白被用于组织和细胞培养物质中,并且在治疗上使用,例如可生物降解的手术材料和组织增强。