Role of post-translational modifications on structure, function and pharmacology of class C G protein-coupled receptors

Eur J Pharmacol. 2015 Sep 15;763(Pt B):233-40. doi: 10.1016/j.ejphar.2015.05.015. Epub 2015 May 14.

Abstract

G protein-coupled receptors are divided into three classes (A, B and C) based on homology of their seven transmembrane domains. Class C is the smallest class with 22 human receptor subtypes including eight metabotropic glutamate (mGlu1-8) receptors, two GABAB receptors (GABAB1 and GABAB2), three taste receptors (T1R1-3), one calcium-sensing (CaS) receptor, one GPCR, class C, group 6, subtype A (GPRC6) receptor, and seven orphan receptors. G protein-coupled receptors undergo a number of post-translational modifications, which regulate their structure, function and/or pharmacology. Here, we review the existence of post-translational modifications in class C G protein-coupled receptors and their regulatory roles, with particular focus on glycosylation, phosphorylation, ubiquitination, SUMOylation, disulphide bonding and lipidation.

Keywords: CaSR; GPRC6A; Glycosylation; Palmitoylation; Phosphorylation; Post-translational modifications; Ubiquitination; mGluR.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Humans
  • Molecular Sequence Data
  • Pharmacology / methods*
  • Protein Processing, Post-Translational*
  • Receptors, G-Protein-Coupled / chemistry*
  • Receptors, G-Protein-Coupled / metabolism*

Substances

  • Receptors, G-Protein-Coupled