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    • 91. 发明授权
    • Structurally determined metallo-constructs and applications
    • 结构确定的金属构造和应用
    • US6027711A
    • 2000-02-22
    • US660697
    • 1996-06-05
    • Shubh D. Sharma
    • Shubh D. Sharma
    • A61K38/00A61K49/00A61K51/00A61K51/04A61K51/08A61P35/00A61P37/04A61P43/00C07K5/11C07K7/06A61M36/14
    • C40B30/04A61K51/0497A61K51/08A61K51/082A61K51/083A61K51/086A61K51/088C40B40/16C40B50/06C40B50/14A61K2121/00A61K2123/00
    • A metallo-construct, which may be a peptide, is provided for use as a biological, therapeutic, diagnostic imaging, or radiotherapeutic agent, and for use in library or combinatorial chemistry methods. The construct has a conformationally constrained global secondary structure obtained upon complexing with a metal ion. The peptide constructs are of the general formula:R.sub.1 --X--R.sub.2where X is a plurality of amino acids and includes a complexing backbone for complexing metal ions, so that substantially all of the valences of the metal ion are satisfied upon complexation of the metal ion with X, resulting in a specific regional secondary structure forming a part of the global secondary structure; and where R.sub.1 and R.sub.2 each include from 0 to about 20 amino acids, the amino acids being selected so that upon complexing the metal ion with X at least a portion of either R.sub.1 or R.sub.2 or both have a structure forming the balance of the conformationally constrained global secondary structure. All or a portion of the global secondary structure, which may be sychnologic or rhegnylogic, may form a ligand or mimic a known biological-function domain. The construct has substantially higher affinity for its target upon labeling with a metal ion.
    • 提供可以是肽的金属构建体用作生物,治疗,诊断成像或放射治疗剂,并用于文库或组合化学方法。 该构型具有在与金属离子络合时获得的构象约束的全局二级结构。 肽构建体具有以下通式:R1-X-R2其中X是多个氨基酸,并且包括用于络合金属离子的络合骨架,使得当金属离子络合时,金属离子的几乎所有价态都得到满足 与X,导致特定的区域二级结构构成全球二级结构的一部分; 并且其中R 1和R 2各自包含0至约20个氨基酸,所述氨基酸被选择为使得当金属离子与X配合时,R 1或R 2或两者的至少一部分具有形成构象约束的平衡的结构 全球二级结构。 全部或部分全球二级结构(可能是系统的或流行的)可以形成配体或模拟已知的生物功能结构域。 该构建体在用金属离子标记时对其靶具有显着更高的亲和力。