• 我要登录|
  • 免费注册
    |
  • 我的丁香通
    • 企业机构:
    • 成为企业机构
    • 个人用户:
    • 个人中心
  • 移动端
    移动端
丁香通 logo丁香实验_LOGO
搜实验

    大家都在搜

      大家都在搜

        0 人通过求购买到了急需的产品
        免费发布求购
        发布求购
        点赞
        收藏
        wx-share
        分享

        Use of Fluorescence Spectroscopy to Study the Regulation of Small G Proteins

        互联网

        482
        The Ras-like low-molecular-weight guanosine triphosphate (GTP)-binding proteins form a superfamily whose members participate in a variety of biological pathways, including the regulation of cell growth and differentiation, vesicular transport, and cytoskeletal organization (1 ). In all cases, these GTP-binding proteins appear to act as molecular switches by cycling between an inactive guanosine diphosphate (GDP)-bound state and an active GTP-bound state. This cycle is tightly regulated by distinct proteins; in particular, the exchange of GDP to GTP is stimulated by guanine nucleotide exchange factors (GEFs), and the hydrolyses of GTP back to GDP is catalyzed by GTPase-activating proteins (GAPS) (2 ). In some cases, a third class of proteins participates in the regulation of the GTP-binding/GTPase cycle by inhibiting GDP dissociation (and thus have been designated the GDP-dissociation inhibitors or GDIs) and GTP hydrolysis and stimulating the dissociation of the GTP-binding protein from membranes (2 ,3 ).
        ad image
        提问
        扫一扫
        丁香实验小程序二维码
        实验小助手
        丁香实验公众号二维码
        扫码领资料
        反馈
        TOP
        打开小程序