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    • 5. 发明申请
    • Novel linear ion trap for mass spectrometry
    • 用于质谱的新型线性离子阱
    • US20070045533A1
    • 2007-03-01
    • US11216459
    • 2005-08-31
    • Andrew KrutchinskyHerbert CohenBrian Chait
    • Andrew KrutchinskyHerbert CohenBrian Chait
    • B01D59/44
    • H01J49/423
    • A method for manipulating ions in an ion trap includes storing ions, spatially compressing, and ejecting selected ions according to mass-to-charge ratio. An ion trap includes an injection port, an arm having a first and a second end for confining and spatially compressing the ions, and an ejection port for ejecting the ions from the second end. The arm includes two pairs of opposing electrodes, which provide a quadrupole electric field potential at any cross-section of the ion trap. The distance between opposing electrodes and the cross-sectional area of the electrodes increases from the first to second end. The electrodes may be tapered cylindrical rods or of hyperbolic cross-section. Ions selected for ejection are spatially compressed into a region at the second (wider) end. The ion trap may include one arm, with either orthogonal or axial ejection, or two arms with a central insert for orthogonal ejection.
    • 用于操作离子阱中的离子的方法包括按照质荷比来存储离子,空间压缩和排出选定的离子。 离子阱包括注入口,具有用于限制和空间压缩离子的第一和第二端的臂以及用于从第二端喷出离子的排出口。 臂包括两对相对的电极,其在离子阱的任何横截面处提供四极电场电位。 相对电极之间的距离和电极的横截面面积从第一到第二端增加。 电极可以是锥形圆柱形杆或双曲线截面。 选择用于喷射的离子被空间压缩到第二(较宽)端的区域。 离子阱可以包括具有正交或轴向排出的一个臂或具有用于正交喷射的中心插入件的两个臂。
    • 8. 发明申请
    • Ultra-sensitive detection systems
    • 超敏感检测系统
    • US20050069916A1
    • 2005-03-31
    • US10825568
    • 2004-04-14
    • Brian ChaitDarin LatimerPaul LizardiEric KershnarJon MorrowMatthew RothMartin MattessichKevin McConnell
    • Brian ChaitDarin LatimerPaul LizardiEric KershnarJon MorrowMatthew RothMartin MattessichKevin McConnell
    • G01N27/62C07H21/02C07H21/04C07K1/04C07K1/107C07K1/13C07K7/00C07K7/06C07K7/08C12Q1/68G01N27/333G01N27/447G01N27/64G01N33/483G01N33/53G01N33/566G01N33/58G01N33/68
    • G01N33/6842C07K1/047C07K1/1077C07K1/13C07K7/06C07K7/08G01N33/6803
    • Disclosed are compositions and methods for sensitive detection of one or multiple analytes. In general, the methods involve the use of special label components, referred to as reporter signals, that can be associated with, incorporated into, or otherwise linked to the analytes. In some embodiments, the reporter signals can be altered such that the altered forms of different reporter signals can be distinguished from each other. In some embodiments, sets of reporter signals can be used where two or more of the reporter signals in a set have one or more common properties that allow the reporter signals having the common property to be distinguished and/or separated from other molecules lacking the common property. In other embodiments, sets of reporter signal/analyte conjugates can be used where two or more of the reporter signal/analyte conjugates in a set have one or more common properties that allow the reporter signal/analyte conjugates having the common property to be distinguished and/or separated form other molecules lacking the common property. Reporter signals can also be in conjunction with analytes (such as in mixtures of reporter signals and analytes), where no significant physical association between the reporter signals and analytes occurs; or alone, where no analyte is present.
    • 公开了用于敏感检测一种或多种分析物的组合物和方法。 通常,这些方法涉及使用称为报告信号的特殊标记成分,其可以与分析物相关联,并入或以其它方式连接到分析物上。 在一些实施方案中,可以改变报道信号,使得不同报道信号的改变形式可以彼此区分。 在一些实施方案中,可以使用一组报告信号,其中一组中的两个或更多个报告基因信号具有一个或多个共同性质,其允许具有共同性质的报道信号被区分和/或与其他分子不相同 属性。 在其它实施方案中,可以使用组的报告信号/分析物缀合物,其中组中的两个或多个报道信号/分析物缀合物具有一个或多个共同性质,其允许区分具有共同性质的报道信号/分析物缀合物, /或分离形成其他缺乏共同性质的分子。 记者信号也可以与分析物(例如报告信号和分析物的混合物)结合,其中报告信号和分析物之间不存在明显的物理结合; 或单独存在,其中不存在分析物。
    • 10. 发明申请
    • Methods and kits for distinguishing between specific and non-specific protein associations
    • 用于区分特异性和非特异性蛋白质关联的方法和试剂盒
    • US20070077600A1
    • 2007-04-05
    • US11508736
    • 2006-08-21
    • Brian ChaitAlan TackettJeffrey DeGrasseMarlene OeffingerMichael RoutMatthew Sekedat
    • Brian ChaitAlan TackettJeffrey DeGrasseMarlene OeffingerMichael RoutMatthew Sekedat
    • G01N33/567G01N33/574G01N33/569G01N33/554G01N33/53
    • G01N33/5023G01N33/5032G01N33/60G01N33/6845G01N33/6848
    • The present invention is method of determining whether or not associations between a given protein and other proteins in a cell are specific. The method comprises (a) providing a first sample of the cells in which the given protein contains a tag, (b) providing a second sample of the same cells, wherein the given protein and the other proteins are metabolically labeled, and wherein neither the given protein nor the other proteins are tagged, (c) mixing and lysing the first cell sample and the second cell sample to provide a mixture of proteins, (d) binding the tag of the given protein to a substrate, (e) isolating proteins associated with the tagged given protein bound to the substrate, whereby the associated proteins comprise: (i) proteins specifically associated with the tagged given protein, (ii) proteins non-specifically associated with the tagged given protein, or (iii) a combination thereof, (f) determining whether each associated protein is unlabeled or a mixture of labeled and unlabeled proteins, wherein if the associated protein is not labeled, then that protein was specifically associated in the cell with the tagged given protein.
    • 本发明是确定细胞中给定蛋白质和其它蛋白质之间的缔合是否是特异性的方法。 该方法包括(a)提供其中给定蛋白质含有标签的细胞的第一样品,(b)提供相同细胞的第二样品,其中所述给定蛋白质和其它蛋白质被代谢标记,并且其中 (c)混合和裂解第一细胞样品和第二细胞样品以提供蛋白质的混合物,(d)将给定蛋白质的标签与底物结合,(e)分离蛋白质 与标记的给定蛋白质结合至底物,其中相关蛋白质包含:(i)与标记的给定蛋白质特异性相关的蛋白质,(ii)与标记的给定蛋白质非特异性相关的蛋白质,或(iii)其组合 ,(f)确定每个相关蛋白是否未标记,或标记蛋白和未标记蛋白质的混合物,其中如果相关蛋白未被标记,那么该蛋白质与标记特异性结合在细胞中 给定蛋白质。