From the Department of Pharmacology, Columbia University, New York.
Circ Res. 2018 Nov 9;123(11):1199-1201. doi: 10.1161/CIRCRESAHA.118.313884.
The actions and regulation of cardiomyocyte βARs differ in several respects from the properties described for the prototypical βAR subtype; a mechanism to explain the unique properties of the βAR subtype has never been obvious. This viewpoint summarizes recent studies that identify a novel signaling paradigm for the βAR, implicating the N-terminus as a molecular determinant of βAR responsiveness.
心肌细胞 βAR 的作用和调节在几个方面不同于典型的βAR 亚型的特性;解释βAR 亚型独特特性的机制从未明显存在过。这一观点总结了最近的研究,这些研究确定了βAR 的一种新的信号传递范例,暗示 N 端是βAR 反应性的分子决定因素。