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    • 3. 发明授权
    • Diffocin and methods of use thereof
    • Diffocin及其使用方法
    • US08673291B2
    • 2014-03-18
    • US13117467
    • 2011-05-27
    • Dean M. SchollDana M. GebhartSteven R. WilliamsGregory R. GovoniDavid W. Martin, Jr.
    • Dean M. SchollDana M. GebhartSteven R. WilliamsGregory R. GovoniDavid W. Martin, Jr.
    • C12N1/20C12N7/00C07H21/00C07K14/00
    • C07K14/33
    • This disclosure relates to the discovery and isolation of the entire cluster of genes encoding R-type high molecular weight bacteriocins that specifically kill Clostridium difficile bacteria, dangerous human pathogens. Also disclosed are methods of producing the R-type bacteriocins in innocuous producer cells that, unlike C. difficile, do not die in the presence of oxygen. Disclosed also is the specific gene of the isolated gene cluster that determines the killing spectrum of the R-type bacteriocin and the demonstration that the killing spectra of diffocins can be altered by engineering orf1374 of the diffocin genetic locus. This invention offers a potent bactericidal agent and a means to make it in order to kill selectively C. difficile bacteria in the environment of the gastrointestinal tract where they can cause great harm and even death of the infected patient or farm animal.
    • 本公开涉及发现和分离编码特异性杀伤艰难梭菌(Clostridium difficile bacteria),危险人类病原体的R型高分子量细菌素的整个基因簇。 还公开了在无害生物细胞中生产R型细菌素的方法,其与艰难梭菌不同,不在氧的存在下死亡。 还公开了分离的基因簇的特异性基因,其确定了R型细菌素的杀伤谱,并且证明了可以通过工程化的diffocin遗传基因座的orf1374改变diffocins的杀伤谱。 本发明提供了一种有效的杀菌剂和一种使其成为在肠胃环境中选择性杀死艰难梭菌的细菌的手段,在这些细菌中它们可能会对受感染的病人或农场动物造成极大的伤害甚至死亡。
    • 5. 发明授权
    • Non-natural MIC proteins
    • 非天然MIC蛋白
    • US08796420B2
    • 2014-08-05
    • US13176601
    • 2011-07-05
    • David W. Martin, Jr.Steven R. Williams
    • David W. Martin, Jr.Steven R. Williams
    • A61K38/16C07K16/00A01N63/00C07K19/00C12N5/0783
    • C07K14/473A61K38/00C07K14/70539C07K2318/00C07K2319/33Y02A50/389Y02A50/393
    • This invention describes soluble, monovalent, non-natural protein molecules that can activate NK cells and certain T-cells to attack specific cellular target cells by attaching the NKG2D-binding portions of monovalent MICA or MICB protein, i.e. their α1-α2 platform domain, to the intended target cell specifically. The α1-α2 domain is contiguous with a heterologous α3 domain that has been genetically modified to bind directly or indirectly to the extracellular aspect of the target cell, thereby serving as the targeting domain. The genetic modification to create a non-natural and non-terminal targeting motif within the α3 domain can include a portion of an antibody, another protein molecule or portion thereof, a peptide, or a non-natural, modified α3 domain of a MIC protein.
    • 本发明描述了通过连接单价MICA或MICB蛋白(即它们的α1-α2平台结构域)的NKG2D结合部分可以激活NK细胞和某些T细胞以攻击特异性细胞靶细胞的可溶性,一价,非天然蛋白质分子, 具体到目的细胞。 α1-α2结构域与已经被遗传修饰的异源α3结构域连续,直接或间接地结合到靶细胞的细胞外方面,从而作为靶向结构域。 在α3结构域内产生非天然和非末端靶向基序的遗传修饰可以包括MIC蛋白质的一部分抗体,另一蛋白质分子或其部分,肽或非天然修饰的α3结构域 。
    • 10. 发明授权
    • Non-natural MIC proteins
    • 非天然MIC蛋白
    • US08658765B2
    • 2014-02-25
    • US12982827
    • 2010-12-30
    • David W. Martin, Jr.Steven R. Williams
    • David W. Martin, Jr.Steven R. Williams
    • A61K38/16C07K14/00C07K16/00A01N63/00
    • C07K14/70539A61K38/1774C07K2319/33Y02A50/389Y02A50/393
    • This invention describes soluble, monovalent, non-natural protein molecules that can activate NK cells and certain T-cells to attack specific cellular target cells by attaching the NKG2D-binding portions of monovalent MICA or MICB protein, i.e. their α1-α2 platform domain, to the intended target cell specifically. The α1-α2 domain is contiguous with a heterologous α3 domain that has been genetically modified to bind directly or indirectly to the extracellular aspect of the target cell, thereby serving as the targeting domain. The genetic modification to create a non-natural and non-terminal targeting motif within the α3 domain can include a portion of an antibody, another protein molecule or portion thereof, a peptide, or a non-natural, modified α3 domain of a MIC protein.
    • 本发明描述了通过连接单价MICA或MICB蛋白(即它们的α1-α2平台结构域)的NKG2D结合部分可以激活NK细胞和某些T细胞以攻击特定细胞靶细胞的可溶性,一价,非天然蛋白质分子, 具体到目的细胞。 α1-α2结构域与经过遗传修饰的异源α3结构域连续,直接或间接地结合靶细胞的细胞外区域,从而作为靶向结构域。 在α3结构域内产生非天然和非末端靶向基序的遗传修饰可包括MIC蛋白的一部分抗体,另一蛋白质分子或其部分,肽或非天然修饰的α3结构域 。