{{'Search' | translate}}
 

[7-methoxy-3H]-Prazosin

Company: PerkinElmer
Catalog#: NET823025UC
Bio-protocol()
Company-protocol()
Other protocol()

Quantification of the Surface Expression of G Protein-coupled Receptors Using Intact Live-cell Radioligand Binding Assays
Author:
Date:
2020-09-20
[Abstract]  G protein-coupled receptors (GPCRs) are the most structurally diverse family of signaling proteins and regulate a variety of cell function. For most GPCRs, the cell surface is their functional destination where they are able to respond a wide range of extracellular stimuli, leading to the activation of intracellular signal transduction cascades. Thus, the quantity of receptor expression at the cell surface is a crucial factor regulating the functionality of the receptors. Over the past decades, many methods have been developed to measure the cell surface expression of GPCRs. Here, we describe an intact live-cell radioligand binding assay to quantify the surface expression of GPCRs at the endogenous levels or after overexpression. In this assay, cell cultures will be incubated with ... [摘要]  [摘要] G蛋白偶联受体(GPCR)是信号蛋白中结构最多样化的家族,可调节多种细胞功能。对于大多数GPCR,细胞表面是它们的功能目的地,能够响应广泛的细胞外刺激,从而激活细胞内信号转导级联反应。因此,受体在细胞表面的表达量是调节受体功能的关键因素。在过去的几十年中,已开发出许多方法来测量GPCR的细胞表面表达。在这里,我们描述了完整的活细胞放射性配体结合测定法,以量化内源水平或过表达后GPCR的表面表达。在该测定中,将细胞培养物与特定的细胞不可渗透的放射性配体温育,所述放射性不可配体选择性地和化学计量地结合至各个GPCR,并且通过受体结合的配体的放射性来定量细胞表面的受体数量。 此方法对于测量完整活细胞表面的功能性GPCR具有高度特异性,对于内源性,低丰度的GPCR特别有用。

[背景 ] G蛋白偶联受体(GPCR)构成细胞表面受体的最大超家族,并在生理和病理条件下调节多种细胞功能(Hauser 等人,2017; Hilger 等人,2018; Weinberg和Puthenveedu,2019) ...

Comments