作者: Catalina Ribas , Petronila Penela , Cristina Murga , Alicia Salcedo , Carlota García-Hoz
DOI: 10.1016/J.BBAMEM.2006.09.019
关键词:
摘要: G protein-coupled receptor kinases (GRKs) and arrestins are key participants in the canonical pathways leading to phosphorylation-dependent GPCR desensitization, endocytosis, intracellular trafficking resensitization as well modulation of important signaling cascades by GPCR. Novel studies have revealed a phosphorylation-independent desensitization mechanism operating through their RGS-homology (RH) domain recent determination crystal structures GRK2 GRK6 has uncovered interesting details on structure-function relationships these kinases. Emerging evidence indicates that activity GRKs is tightly modulated mechanisms including phosphorylation different interaction with several cellular proteins such calmodulin, caveolin or RKIP. In addition, involved multiple interactions non-receptor (PI3K, Akt, GIT MEK) point novel GRK roles. this article, our purpose describe ever increasing map functional for basis better understand its contribution processes.