1. Kim et al. (2014) Coevolution of the spexin/galanin/kisspeptin family: spexin activates galanin receptor type II and III. Endocrinology 155:1864.
 

2. Hwang et al. (2013) Expansion of secretin-like G protein-coupled receptors and their peptide ligands via local duplications before and after two rounds of whole genome duplication. Mol Biol Evol 30:1119.
 

3. Moon et al. (2015) Ligand binding pocket formed by evolutionarily conserved residues in the glucagon-like peptide-1 receptor core domain. J Biol Chem 290:5696-5706
 

4. Reyes-Alcaraz, et al (2016) Development of Spexin-based Human Galanin Receptor Type II-Specific Agonists with Increased Stability in Serum. Scientific Reports 6:21453.
 

5. Yun et al. (2015) Pre-vertebrate Local Gene Duplication Facilitated Expansion of the Neuropeptide GPCR Superfamily. Mol Biol Evol 32:2803-2817.