Serine-rich peptide linkers
    52.
    发明授权
    Serine-rich peptide linkers 失效
    富含丝氨酸的肽接头

    公开(公告)号:US5525491A

    公开(公告)日:1996-06-11

    申请号:US257341

    申请日:1994-06-09

    Abstract: Disclosed are serine-rich peptide linkers for linking two or more protein domains to form a fused protein. The peptide linkers contains at least 40% serine residues and preferably have the formula (Ser, Ser,Ser,Ser,Gly).sub.y where y is .gtoreq.1. The resulting fused domains are biologically active together or individually, have improved solubility in physiological media, and improved resistance to proteolysis.

    Abstract translation: 公开了用于连接两个或多个蛋白质结构域以形成融合蛋白的丝氨酸丰富的肽接头。 肽接头含有至少40%的丝氨酸残基,并且优选具有式(Ser,Ser,Ser,Ser,Gly)y,其中y为≥1。 所得的融合结构域在一起或单独地具有生物活性,在生理介质中具有改善的溶解性,并且改善了对蛋白水解的抵抗力。

    Polypeptide linkers for production of biosynthetic proteins
    55.
    发明授权
    Polypeptide linkers for production of biosynthetic proteins 失效
    用于生物合成蛋白质的多肽接头

    公开(公告)号:US5258498A

    公开(公告)日:1993-11-02

    申请号:US955399

    申请日:1992-10-01

    Abstract: Disclosed are a family of synthetic proteins having binding affinity for a preselected antigen, and multifunctional proteins having such affinity. The proteins are characterized by one or more sequences of amino acids constituting a region which behaves as a biosynthetic antibody binding site (BABS) The sites comprise V.sub.H -V.sub.L or V.sub.L -V.sub.H -like single chains wherein the V.sub.H and V.sub.L -like sequences are attached by a polypeptide linker, or individual V.sub.H or V.sub.L -like domains. The binding domains comprise linked CDR and FR regions, which may be derived from separate immunoglobulins. The proteins may also include other polypeptide sequences which function, e.g., as an enzyme, toxin, binding site, or site for attachment to an immobilization media or radioactive atom. Methods are disclosed for producing the proteins, for designing BABS having any specificity that can be elicited by in vivo generation of antibody for producing analogs thereof, and for producing multifunctional synthetic proteins which are self-targeted by virtue of their binding site region.

    Abstract translation: PCT No.PCT / US88 / 01737 Sec。 371日期1989年1月23日 102(e)日期1989年1月23日PCT提交1988年5月19日PCT公布。 出版物WO88 / 09344 日期为1988年12月1日。公开是对预选抗原具有结合亲和力的合成蛋白家族,以及具有这种亲和力的多功能蛋白质。 蛋白质的特征在于构成表现为生物合成抗体结合位点(BABS)的区域的一个或多个氨基酸序列。位点包含VH和VL-样的单链,其中VH和VL样序列被连接 通过多肽接头,或单独的VH或VL样结构域。 结合域包含连接的CDR和FR区,其可以衍生自单独的免疫球蛋白。 蛋白质还可以包括其它多肽序列,其功能例如作为酶,毒素,结合位点或用于附着到固定化介质或放射性原子的位点。 公开了用于制备蛋白质的方法,用于设计具有可通过体内产生抗体产生其类似物的任何特异性的BABS,以及用于生产通过其结合位点区域自身靶向的多功能合成蛋白质。

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