{{'Search' | translate}}
 

Tris

Company: Bio Basic
Catalog#: 77-86-1
Bio-protocol()
Company-protocol()
Other protocol()

Measuring cAMP Specific Phosphodiesterase Activity: A Two-step Radioassay
Author:
Date:
2020-04-05
[Abstract]  Cyclic nucleotide degrading phosphodiesterase (PDE) enzymes are crucial to the fine tuning of cAMP signaling responses, playing a pivotal role in regulating the temporal and spatial characteristics of discrete cAMP nanodomains and hence the activity of cAMP-effector proteins. As a consequence of orchestrating cAMP homeostasis, dysfunctional PDE activity plays a central role in disease pathogenesis. This highlights the need for developing methods that can be used to further understand PDE function and assess the effectiveness of potentially novel PDE therapeutics. Here we describe such an approach, where PDE activity is indirectly measured through the direct quantification of radioactively tagged cAMP (pmol/min-1/mg-1). This method provides a highly sensitive tool for ... [摘要]  [摘要 ] 环核苷酸降解磷酸二酯酶(PDE)酶对cAMP信号响应的微调至关重要,在调节离散cAMP纳米域的时空特征以及cAMP效应子蛋白的活性中起着关键作用。协调cAMP稳态的结果是,功能异常的PDE活性在疾病发病机理中起着核心作用。这突出了对开发可用于进一步了解PDE功能并评估潜在的新型PDE治疗剂有效性的方法的需求。在这里,我们描述了这种方法,其中PDE活性是通过对放射性标记的cAMP(pmol / min -1 / mg -1 )。此方法为调查PDE功能提供了高度敏感的工具。

[背景 ] 环状3',5'-单磷酸腺苷(cAMP)是由腺苷酸环化酶(ACs)合成的普遍表达的第二信使,其充当细胞内信号转导通路的广泛调控者(Hayes and Brunton,1982) ;Beavo 和Brunton,2002年)。磷酸二酯酶(PDE)可精细调节cAMP的体内稳态,从而将cAMP迅速降解为5'AMP(Baillie,2009年)。PDE由11个家族(PDE1-11)组成,跨越100多种同工酶(例如PDE4A1-PDE4A5),均具有快速水解环状核苷酸的能力(Conti和Beavo ...

Comments