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    • 10. 发明申请
    • Cloning and recombinant production of CRF receptor(s)
    • CRF受体的克隆和重组产生
    • US20050186593A1
    • 2005-08-25
    • US11007077
    • 2004-12-07
    • Lawrence MathewsWylie ValeKunihiro Tsuchida
    • Lawrence MathewsWylie ValeKunihiro Tsuchida
    • A61K38/00C07K14/71C12Q1/68C07H21/04C07K14/705
    • C07K14/71A61K38/00C07K2319/00
    • In accordance with the present invention, there are provided novel receptor proteins characterized by having the following domains, reading from the N-terminal end of said protein: an extracellular, ligand-binding domain, a hydrophobic, trans-membrane domain, and an intracellular, receptor domain having serine kinase-like activity. The invention receptors optionally further comprise a second hydrophobic domain at the amino terminus thereof. The invention receptor proteins are further characterized by having sufficient binding affinity for at least one member of the activin/TGF-β superfamily of polypeptide growth factors such that concentrations of ≦10 nM of said polypeptide growth factor occupy ≦50% of the binding sites of said receptor protein. A presently preferred member of the invention superfamily of receptors binds specifically to activins, in preference to inhibins, transforming growth factor-β, and other non-activin-like proteins. DNA sequences encoding such receptors, assays employing same, as well as antibodies derived therefrom, are also disclosed.
    • 根据本发明,提供了新的受体蛋白,其特征在于具有以下结构域,从所述蛋白质的N-末端读取:细胞外,配体结合结构域,疏水性,跨膜结构域和细胞内 ,具有丝氨酸激酶样活性的受体结构域。 本发明受体任选地还包含在其氨基末端的第二疏水结构域。 本发明受体蛋白的进一步特征在于对多肽生长因子的活化素/ TGF-β超家族的至少一个成员具有足够的结合亲和力,使得所述多肽生长因子的<= 10nM的浓度占结合物的<50% 所述受体蛋白的位点。 本发明目前优选的受体超家族成员特异性结合激活素,优于抑制素,转化生长因子-β和其他非激活素样蛋白。 还公开了编码这种受体的DNA序列,使用其的测定法,以及由其衍生的抗体。