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    • 5. 发明授权
    • Rapid quantitative analysis of proteins or protein function in complex mixtures
    • 蛋白质或蛋白质功能在复杂混合物中的快速定量分析
    • US06670194B1
    • 2003-12-30
    • US09383062
    • 1999-08-25
    • Rudolf Hans AebersoldMichael H. GelbSteven P. GygiC. Ronald ScottFrantisek TurecekScott A. GerberBeate Rist
    • Rudolf Hans AebersoldMichael H. GelbSteven P. GygiC. Ronald ScottFrantisek TurecekScott A. GerberBeate Rist
    • C07C33116
    • G01N33/6848C12Q1/25G01N33/58G01N33/6803G01N33/6842Y10S530/812Y10T436/182Y10T436/24Y10T436/25Y10T436/25125Y10T436/25375
    • Analytical reagents and mass spectrometry-based methods using these reagents for the rapid, and quantitative analysis of proteins or protein function in mixtures of proteins. The methods employ affinity labeled protein reactive reagents having three portions: an affinity label (A) covalently linked to a protein reactive group (PRG) through a linker group (L). The linker may be differentially isotopically labeled, e.g., by substitution of one or more atoms in the linker with a stable isotope thereof. These reagents allow for the selective isolation of peptide fragments or the products of reaction with a given protein (e.g., products of enzymatic reaction) from complex mixtures. The isolated peptide fragments or reaction products are characteristic of the presence of a protein or the presence of a protein function in those mixtures. Isolated peptides or reaction products are characterized by mass spectrometric (MS) techniques. The reagents also provide for differential isotopic labeling of the isolated peptides or reaction products which facilitates quantitative determination by mass spectrometry of the relative amounts of proteins in different samples. The methods of this invention can be used for qualitative and quantitative analysis of global protein expression profiles in cells and tissues, to screen for and identify proteins whose expression level in cells, tissue or biological fluids is affected by a stimulus or by a change in condition or cell state of the cell, tissue or organism from which the sample originated.
    • 使用这些试剂的分析试剂和基于质谱的方法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。 该方法采用具有三个部分的亲和标记的蛋白质反应试剂:通过连接基团(L)与蛋白质反应基团(PRG)共价连接的亲和标记(A)。 连接体可以是差异同位素标记的,例如用连接体中的一个或多个原子用其稳定同位素取代。 这些试剂允许从复杂混合物中选择性分离肽片段或与给定蛋白质(例如,酶反应产物)反应的产物。 分离的肽片段或反应产物是这些混合物中存在蛋白质或存在蛋白质功能的特征。 分离的肽或反应产物的特征在于质谱(MS)技术。 试剂还提供分离的肽或反应产物的差异同位素标记,其有助于通过质谱法定量测定不同样品中蛋白质的相对量。 本发明的方法可用于细胞和组织中全球蛋白质表达谱的定性和定量分析,筛选和鉴定细胞,组织或生物流体中的表达水平受刺激或病情变化影响的蛋白质 或来自样品的细胞,组织或生物体的细胞状态。
    • 9. 发明授权
    • Rapid quantitative analysis of proteins or protein function in complex mixtures
    • 蛋白质或蛋白质功能在复杂混合物中的快速定量分析
    • US06852544B2
    • 2005-02-08
    • US09839884
    • 2001-04-20
    • Rudolf Hans AebersoldMichael H. GelbSteven P. GygiC. Ronald ScottFrantisek TurecekScott A. GerberBeate Rist
    • Rudolf Hans AebersoldMichael H. GelbSteven P. GygiC. Ronald ScottFrantisek TurecekScott A. GerberBeate Rist
    • G01N27/62C12Q1/25C12Q1/34C12Q1/48G01N30/00G01N30/06G01N30/60G01N30/72G01N30/88G01N33/53G01N33/566G01N33/58G01N33/68
    • G01N33/6848C12Q1/25G01N33/58G01N33/6803G01N33/6842Y10S530/812Y10T436/182Y10T436/24Y10T436/25Y10T436/25125Y10T436/25375
    • Analytical reagents and mass spectrometry-based methods using these reagents for the rapid, and quantitative analysis of proteins or protein function in mixtures of proteins. The methods employ affinity labeled protein reactive reagents having three portions: an affinity label (A) covalently linked to a protein reactive group (PRG) through a linker group (L). The linker may be differentially isotopically labeled, e.g., by substitution of one or more atoms in the linker with a stable isotope thereof. These reagents allow for the selective isolation of peptide fragments or the products of reaction with a given protein (e.g., products of enzymatic reaction) from complex mixtures. The isolated peptide fragments or reaction products are characteristic of the presence of a protein or the presence of a protein function in those mixtures. Isolated peptides or reaction products are characterized by mass spectrometric (MS) techniques. The reagents also provide for differential isotopic labeling of the isolated peptides or reaction products which facilitates quantitative determination by mass spectrometry of the relative amounts of proteins in different samples. The methods of this invention can be used for qualitative and quantitative analysis of global protein expression profiles in cells and tissues, to screen for and identify proteins whose expression level in cells, tissue or biological fluids is affected by a stimulus or by a change in condition or state of the cell, tissue or organism from which the sample originated.
    • 使用这些试剂的分析试剂和基于质谱的方法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。 该方法采用具有三个部分的亲和标记的蛋白质反应试剂:通过连接基团(L)与蛋白质反应基团(PRG)共价连接的亲和标记(A)。 连接体可以是差异同位素标记的,例如用连接体中的一个或多个原子用其稳定同位素取代。 这些试剂允许从复杂混合物中选择性分离肽片段或与给定蛋白质(例如,酶反应产物)反应的产物。 分离的肽片段或反应产物是这些混合物中存在蛋白质或存在蛋白质功能的特征。 分离的肽或反应产物的特征在于质谱(MS)技术。 试剂还提供分离的肽或反应产物的差异同位素标记,其有助于通过质谱法定量测定不同样品中蛋白质的相对量。 本发明的方法可用于细胞和组织中全球蛋白质表达谱的定性和定量分析,筛选和鉴定细胞,组织或生物流体中的表达水平受刺激或病情变化影响的蛋白质 或来自样品的细胞,组织或生物体的状态。