The predominating molecular form of gastrin and cholecystokinin in the gut is a small peptide corresponding to their COOH-terminal tetrapeptide amide.
D000818:Animals; D002766:Cholecystokinin / Q000032:analysis* / Q000302:isolation & purification; D005753:Gastric Mucosa / Q000032:analysis* / Q000378:metabolism; D005755:Gastrins / Q000032:analysis* / Q000302:isolation & purification; D007158:Immunologic Techniques; D007413:Intestinal Mucosa / Q000032:analysis* / Q000378:metabolism; D013552:Swine
D005755:Gastrins; D002766:Cholecystokinin