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New insights into the regulation of cAMP synthesis beyond GPCR/G protein activation: implications in cardiovascular regulation.

机译:对GAMP / G蛋白激活以外的cAMP合成调控的新见解:对心血管调控的意义。

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摘要

Regulation of intracellular concentrations of cyclic AMP is one of the most ubiquitous mechanisms for regulating cellular functions. Further, the manner in which cAMP production is regulated via G proteins at the level of adenylyl cyclase activation has been studied extensively. This review focuses instead on the recently identified mechanisms and roles for regulation of adenylyl cyclase functions beyond G protein activation. These mechanisms include: a) the coupling of particular isoforms of adenylyl cyclase to function within a single cell type b) regulation of membrane trafficking of higher order enzyme aggregates and c) raf kinase-dependent phosphorylation and sensitization of adenylyl cyclases--an important pathway for crosstalk between tyrosine kinase signaling cascades with regulation of cAMP-mediated responses.
机译:细胞内环状AMP浓度的调节是调节细胞功能的最普遍的机制之一。此外,已经广泛研究了通过G蛋白在腺苷酸环化酶活化水平上调节cAMP产生的方式。本综述着重于最近鉴定的机制和作用,这些作用和作用用于调节除G蛋白活化以外的腺苷酸环化酶功能。这些机制包括:a)腺苷酸环化酶的特定同工型偶联在单个细胞类型中发挥作用b)调节高级酶聚集体的膜运输,以及c)raf激酶依赖的腺苷酸环化酶的磷酸化和敏化作用-一个重要途径调节酪氨酸激酶信号转导级联与cAMP介导的反应之间的串扰。

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