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    • 5. 发明授权
    • Membrane-translocating peptides
    • 膜易位肽
    • US08557744B2
    • 2013-10-15
    • US11996496
    • 2006-07-24
    • David CoomberKevin FitzgeraldDuncan McGregorChris UllmanTomas Leanderson
    • David CoomberKevin FitzgeraldDuncan McGregorChris UllmanTomas Leanderson
    • C40B30/04C12Q1/70
    • C12N15/1075
    • A method is selects membrane-translocating peptides (MTPs) from a peptide display library that are capable of crossing or penetrating a lipid membrane. A plurality of nucleic acid constructs that encode displayed peptides are expressed, resulting in the formation of a plurality of nucleic acid-peptide complexes, each complex comprising at least one displayed peptide associated with the corresponding nucleic acid construct encoding the displayed peptide; the complexes are exposed to a population of membrane-encapsulated compartments, allowing a translocating reaction to occur; complexes that remain unassociated with the membrane are removed; optionally complexes that are associated with the membrane are removed; and internalized nucleic acid-peptide complexes are recovered. The membrane-encapsulated compartments may be artificial vesicles such as liposomes, or populations of one or more cell types.
    • 一种方法是从能够穿透或穿透脂质膜的肽展示文库中选择膜 - 位移肽(MTP)。 表达编码显示的肽的多个核酸构建体,导致形成多个核酸 - 肽复合物,每个复合物包含与编码所显示肽的相应核酸构建体相关联的至少一个显示的肽; 复合物暴露于膜包封的隔室群,允许发生易位反应; 与膜保持不相关的复合物被去除; 去除与膜相关的任选复合物; 并回收内化的核酸 - 肽复合物。 膜包封的隔室可以是人造囊泡,例如脂质体或一种或多种细胞类型的群体。