Ligand antagonists for treatment of breast cancer
    1.
    发明授权
    Ligand antagonists for treatment of breast cancer 失效
    用于治疗乳腺癌的配体拮抗剂

    公开(公告)号:US06429186B1

    公开(公告)日:2002-08-06

    申请号:US08308879

    申请日:1994-09-19

    IPC分类号: A01N3718

    摘要: We have discovered that growth hormones form ternary complexes with their receptors in which site 1 on the hormone first binds to one molecule of receptor and then hormone site 2 then binds to another molecule of receptor, thereby producing a 1:2 complex. We believe this phenomenon is shared by other ligands having similar conformational structure. Assays based on this phenomenon are useful for identifying ligand agonists and antagonists. Sites 1 and 2 are structurally identified to facilitate generation of amino acid sequence variants of ternary complex-forming ligands. Novel variants of growth hormone, prolactin placental lactogen and other related ligands are provided. As a result of our studies with the ternary complex we have determined that selected antibodies to the receptor for these ligands are capable of acting as ligand agonists or antagonists. Novel growth hormones and novel uses for anti-growth hormone receptor antibodies are described. Methods for inhibiting the growth of breast cancer cells are also described.

    摘要翻译: 我们发现生长激素与其受体形成三元复合物,其中激素上的位点1首先与一个受体分子结合,然后激素位点2然后结合另一个受体分子,从而产生1:2复合物。 我们认为这种现象由具有相似构象结构的其他配体共享。 基于此现象的分析可用于鉴定配体激动剂和拮抗剂。 在结构上鉴定了位点1和2,以便于产生三元复合物形成配体的氨基酸序列变体。 提供了生长激素,催乳素胎盘乳酸和其他相关配体的新型变体。 作为我们用三元复合物研究的结果,我们确定了这些配体的受体的选定抗体能够作为配体激动剂或拮抗剂。 描述了抗生长激素受体抗体的新型生长激素和新用途。 还描述了抑制乳腺癌细胞生长的方法。

    Specific N-terminal labeling of peptides and proteins in complex mixtures
    3.
    发明授权
    Specific N-terminal labeling of peptides and proteins in complex mixtures 有权
    复杂混合物中肽和蛋白质的特异性N末端标记

    公开(公告)号:US08679771B2

    公开(公告)日:2014-03-25

    申请号:US12524557

    申请日:2008-01-24

    IPC分类号: G01N33/535

    CPC分类号: G01N33/6803 C12Q1/34

    摘要: This invention provides general methods for selective labeling of proteins on their N-termini with synthetic peptides. The methods of this invention can be applied to the global proteomic profiling of complex mixtures of proteins and polypeptides.

    摘要翻译: 本发明提供了用合成肽在其N-末端上选择性标记蛋白质的一般方法。 本发明的方法可以应用于蛋白质和多肽的复合物混合物的全局蛋白质组学分析。

    Peptide variants of protein A
    6.
    发明授权
    Peptide variants of protein A 失效
    蛋白A的肽变体

    公开(公告)号:US06197927B1

    公开(公告)日:2001-03-06

    申请号:US09036549

    申请日:1998-03-06

    IPC分类号: C07K512

    摘要: Z domain variants of staphylococcal protein A have significantly reduced size but possess IgG-binding affinity equivalent to the wild type Z domain. These Z domain variants are suitable for use in affinity chromatography purification of proteins and in the treatment of staphylococcic diseases.

    摘要翻译: 葡萄球菌蛋白A的Z结构域变体具有显着减小的大小,但具有与野生型Z结构域相当的IgG结合亲和力。 这些Z结构域变体适用于蛋白质的亲和层析纯化和葡萄球菌性疾病的治疗。

    Method for identifying active domains and amino acid residues in
polypeptides and hormone variants
    8.
    发明授权
    Method for identifying active domains and amino acid residues in polypeptides and hormone variants 失效
    用于鉴定多肽和激素变体中活性结构域和氨基酸残基的方法

    公开(公告)号:US06013478A

    公开(公告)日:2000-01-11

    申请号:US104036

    申请日:1998-06-24

    摘要: The invention provides methods for the systematic analysis of the structure and function of polypeptides by identifying active domains which influence the activity of the polypeptide with a target substance. Such active domains are determined by substituting selected amino acid segments of the polypeptide with an analogous polypeptide segment from an analog to the polypeptide. The analog has a different activity with the target substance as compared to the parent polypeptide. The activities of the segment-substituted polypeptides are compared to the same activity for the parent polypeptide for the target. A comparison of such activities provides an indication of the location of the active domain in the parent polypeptide. The invention also provides methods for identifying the active amino acid residues within the active domain of the parent polypeptide. The method comprises substituting a scanning amino acid for one of the amino acid residues within the active domain of the parent polypeptide and assaying the residue-substituted polypeptide so formed with a target substance. The invention further provides polypeptide variants comprising segment-substituted and residue-substituted growth hormones, prolactins and placental lactogens.

    摘要翻译: 本发明提供了通过鉴定影响多肽与靶物质的活性的活性结构域来系统分析多肽的结构和功能的方法。 通过用类似物与多肽的类似多肽片段取代多肽的选定氨基酸片段来确定此类活性结构域。 与亲本多肽相比,类似物与目标物质具有不同的活性。 将段取代的多肽的活性与目标的亲本多肽的相同活性进行比较。 这些活性的比较提供了活性结构域在亲本多肽中的位置的指示。 本发明还提供鉴定亲本多肽活性结构域内活性氨基酸残基的方法。 该方法包括用扫描氨基酸取代母体多肽的活性结构域内的氨基酸残基之一,并测定与靶物质形成的残基取代的多肽。 本发明还提供了包含片段取代的和残基取代的生长激素,催乳素和胎盘乳糖的多肽变体。