title: Does the C-terminal tetrapeptide of gastrin and CCK exist as an entity?
mesh_terms: D000818:Animals; D002766:Cholecystokinin; D004285:Dogs; D005755:Gastrins; D006801:Humans; D010179:Pancreas / Q000378:metabolism*; D010455:Peptides / Q000032:analysis / Q000378:metabolism*; D011863:Radioimmunoassay; D051381:Rats
chemical_list: D005755:Gastrins; D010455:Peptides; D002766:Cholecystokinin