ANALYTICAL METHOD FOR PROTEIN MAPPING USING HYDROGEN/DEUTERIUM EXCHANGE
    1.
    发明申请
    ANALYTICAL METHOD FOR PROTEIN MAPPING USING HYDROGEN/DEUTERIUM EXCHANGE 有权
    使用氢/去离子交换蛋白质分析的分析方法

    公开(公告)号:US20070224642A1

    公开(公告)日:2007-09-27

    申请号:US11672789

    申请日:2007-02-08

    IPC分类号: G01N33/53 C12Q1/37

    CPC分类号: G01N33/6848

    摘要: Analytical methods using hydrogen/deuterium exchange are provided which reduce or eliminate the back-exchange of deuterium for hydrogen. The methods, which are useful in protein and peptide mapping, include the steps of (a) providing a peptide or protein comprising a solvent accessible hydrogen; (b) exchanging the solvent accessible hydrogen for a deuterium; (c) separating the peptide or protein with supercritical fluid chromatography; and (d) analyzing by mass spectrometry the mass of the separated peptide or protein. Supercritical fluid chromatography enables the observation of fast exchanging hydrogen atoms missed using conventional liquid chromatography methods.

    摘要翻译: 提供使用氢/氘交换的分析方法,其减少或消除氘对氢的反向交换。 在蛋白质和肽图谱中有用的方法包括以下步骤:(a)提供包含可溶解溶剂的氢的肽或蛋白质; (b)将可溶解的溶剂交换为氘; (c)用超临界流体色谱分离肽或蛋白质; 和(d)通过质谱分析分离的肽或蛋白质的质量。 超临界流体色谱法能够观察使用常规液相色谱法错过的快速交换氢原子。