Ng Hans K H, Chow Billy K C
Department of Endocrinology, School of Biological Sciences, The University of Hong Kong , Hong Kong , China.
Front Endocrinol (Lausanne). 2015 Feb 2;6:10. doi: 10.3389/fendo.2015.00010. eCollection 2015.
G-protein-coupled receptors (GPCRs) are classified into A to F subfamilies in which only families A, B, and C are present in mammals. Some of these GPCRs were found to form higher ordered structures such as oligomers with the discovery of interacting receptors in the form of homomers or heteromers. The importance of these oligomers on regulating receptor functions has recently been an intense research focus. It has been proposed that receptor oligomer formation has impact on its physiological importance on receptor trafficking, signaling, ligand-related regulation, and also is related to certain diseases. The present body of knowledge, however, comprises mainly intra-family oligomers formation and their consequences. Inter-family oligomers are recognized but there is limited information. This article aims to provide a current view regarding inter-family GPCR oligomerization in the subfamilies A, B, and C found in mammals.
G蛋白偶联受体(GPCRs)被分为A至F亚家族,其中只有A、B和C家族存在于哺乳动物中。随着以同源二聚体或异源二聚体形式相互作用的受体的发现,人们发现其中一些GPCRs会形成更高阶的结构,如寡聚体。这些寡聚体对调节受体功能的重要性最近成为了一个研究热点。有人提出,受体寡聚体的形成会影响其在受体运输、信号传导、配体相关调节方面的生理重要性,并且还与某些疾病有关。然而,目前的知识体系主要包括家族内寡聚体的形成及其后果。跨家族寡聚体已被认识到,但相关信息有限。本文旨在提供关于在哺乳动物中发现的A、B和C亚家族跨家族GPCR寡聚化的当前观点。