Purity: > 90% by SDS - PAGE Format: Liquid. In 20mM Tris-HCl buffer (pH8.0) containing 10% glycerol, 0.2M NaCl, 0.1mM PMSF . Ghrelin, also known as Obestatin, is the ligand for growth hormone secretagogue receptor type 1 (GHSR). It induces the release of growth hormone from the pituitary and involved in growth regulation. This protein has an appetite-stimulating effect, induces adiposity and stimulates gastric acid secretion. Ghrelin plays a significant role in neurotrophy, particularly in the hippocampus, and is essential for cognitive adaptation to changing environments and the process of learning. Recombinant Ghrelin protein was expressed in E.coli and purified by using conventional chromatography techniques.