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    • 7. 发明授权
    • Capture and release based isotope tagged peptides and methods for using the same
    • 捕获和释放基于同位素标记的肽及其使用方法
    • US07332613B2
    • 2008-02-19
    • US10863589
    • 2004-06-07
    • Steven P. GygiScott Anthony GerberCarlos Augusto Gartner
    • Steven P. GygiScott Anthony GerberCarlos Augusto Gartner
    • C07D235/02
    • G01N33/6848G01N33/6842G01N2458/15Y10T436/24
    • The invention provides non-affinity based isotope tagged peptides, chemistries for making these peptides, and methods for using these peptides. In one aspect, tags comprise a reactive site (RS) for reacting with a molecule on a protein to form a stable association with the peptide (e.g., a covalent bond) and an anchoring site (AS) group for reversibly or removably anchoring the tag to a solid phase such as a resin support. Anchoring may be direct or indirect (e.g., through a linker molecule). Preferably, the anchoring site comprises a biotin compound. Preferably, the tag comprises a mass-altering label, such as a stable isotope, such that association of the tag with the peptide can be monitored by mass spectrometry. The reagents can be used for rapid and quantitative analysis of proteins or protein function in mixtures of proteins.
    • 本发明提供了基于非亲和力的同位素标记的肽,用于制备这些肽的化学物质和使用这些肽的方法。 一方面,标签包含用于与蛋白质上的分子反应以与肽(例如共价键)和锚定位点(AS)组稳定结合的反应位点(RS),用于可逆地或可拆卸地锚定标签 固相如树脂载体。 锚定可以是直接的或间接的(例如通过连接体分子)。 优选地,锚定位点包含生物素化合物。 优选地,标签包含质量变化标签,例如稳定同位素,使得可以通过质谱法监测标签与肽的缔合。 这些试剂可用于蛋白质混合物中蛋白质或蛋白质功能的快速和定量分析。