Background The gastrointestinal peptide hormone ghrelin was discovered in 1999 as the endogenous ligand from the growth hormones secretagogue receptor. rate of metabolism. gene rules for the full-length G-protein combined seven transmembrane proteins GHSR1a, but a truncated isoform (GHSR1b), that includes a wide cells distribution, can be transcribed [51]. GHSR1a offers been proven to homodimerize,… Continue reading Background The gastrointestinal peptide hormone ghrelin was discovered in 1999 as