MUTANT RAS POLYPEPTIDE CRYSTAL
    3.
    发明申请

    公开(公告)号:US20120142116A1

    公开(公告)日:2012-06-07

    申请号:US13383835

    申请日:2010-07-13

    IPC分类号: G01N23/20 C07K14/435

    摘要: An object of the present invention is to provide a co-crystal of a Ras polypeptide which adopts a conformation having a pocket on the molecular surface of Ras and GTP or a GTP analog, a production method for the crystal, and a screening method for a Ras function inhibitor based on information about the conformation obtained by X-ray crystallographic analysis using the crystal. The object is achieved by focusing on a mutation which adopts a conformation having a pocket on the molecular surface of Ras, acquiring a mutant Ras polypeptide having introduced therein such mutation, producing a co-crystal of the mutant Ras polypeptide and a GTP analog, and further subjecting the co-crystal to X-ray crystallographic analysis to acquire structural information about the conformation including information about the structure surrounding the pocket.

    摘要翻译: 本发明的目的是提供一种Ras多肽的共晶,其采用在Ras和GTP的分子表面上具有口袋的构象或GTP类似物,晶体的制备方法和用于 基于通过使用晶体的X射线晶体学分析获得的关于构象的信息的Ras功能抑制剂。 该目的是通过集中于在Ras的分子表面上采用具有口袋的构象的突变来实现的,获得在其中引入了这种突变的突变体Ras多肽,产生突变型Ras多肽和GTP类似物的共晶体,以及 进一步对共晶进行X射线晶体学分析以获得关于构象的结构信息,包括关于口袋周围结构的信息。