Day 79 has 25 protein-coding genes (browser view) including GHSR, encoding the growth hormone secretagogue receptor. This is a receptor on the surface of cells that listens for ghrelin, the “hunger hormone.”
Why not just call it the ghrelin receptor? GHSR was discovered three years before the discovery and naming of its ligand, ghrelin. A secretagogue is a substance that promotes the secretion of something else.
Click here to see all 8621546 letters of Day 79, with GHSR underlined.