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JoVE Journal
Biochemistry
单分子水平标记均匀性的全蛋白质定量
单分子水平标记均匀性的全蛋白质定量
JoVE Journal
Biochemistry
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JoVE Journal Biochemistry
Proteome-wide Quantification of Labeling Homogeneity at the Single Molecule Level

单分子水平标记均匀性的全蛋白质定量

Full Text
6,613 Views
08:29 min
April 19, 2019

DOI: 10.3791/59199-v

Simon Leclerc1,2, Youri Arntz2, Yuichi Taniguchi1,3

1Laboratory for Cell Systems Control, RIKEN Center for Biosystems Dynamics Research,RIKEN, 2Laboratoire de Biomatériaux et Bioimagerie,INSERM, 3PRESTO, Japan Science and Technology Agency

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Please note that some of the translations on this page are AI generated. Click here for the English version.

在这里, 我们提出了一个协议, 以评估标签同质性的每个蛋白质物种在一个复杂的蛋白质样本在单分子水平。

该方法演示了用单分子计算法对液体样品中蛋白质量进行量化的校准。具体来说,它可以说明蛋白质群如何在每个分子水平上被荧光标记。先前的方法进行了批量测量,以分析荧光分子和蛋白质分子的摩尔比,但它们不能揭示异质蛋白质群是如何实际标记的。

我们的方法可以直接在单分子水平上做到这一点。我们的方法可以扩展到超敏感和先进的分子浓度测定,这将导致未来的诊断方法,从而在样品中有效地发现致病分子。我们的方法可用于使用荧光抗体进行单一蛋白质物种分析,以及使用非特异性标签对通过电泳或色谱分离的所有蛋白质进行多物种分析。

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