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DOI: 10.3791/55974-v
Please note that some of the translations on this page are AI generated. Click here for the English version.
本报告提供了两种基于生物素化的方法,设计用于测定在质膜上表达的蛋白质的细胞表面表达和内吞率。
在本视频中,将介绍两种方法,细胞表面生物素化和脉冲追踪生物素化。在下面的演示中,我们将使用星形胶质细胞。这些是大脑中最丰富的神经胶质细胞类型,它们恰好表达我们感兴趣的蛋白质,即水通道蛋白-4。
我们在本文中使用的方法可以应用于许多不同的细胞类型,这些细胞类型可能包括悬浮细胞或贴壁细胞。这些技术可用于研究几乎任何跨膜蛋白的细胞表面表达和内化,只要它具有生物素可接近的细胞外结构域。这种细胞表面生物素化测定的总体目标是确定层粘连蛋白对星形胶质细胞质膜上透水通道水通道蛋白-4 表达的影响。
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