title: The interaction of immobilized transition-metal ions with some gastrointestinal polypeptides.
mesh_terms: D000818:Animals; D002413:Cations, Divalent; D002846:Chromatography, Affinity; D003106:Colon; D005755:Gastrins / Q000302:isolation & purification; D005934:Glucagon / Q000302:isolation & purification; D007457:Iodine Radioisotopes; D007501:Iron; D011485:Protein Binding; D011863:Radioimmunoassay; D012995:Solubility; D013552:Swine
chemical_list: D002413:Cations, Divalent; D005755:Gastrins; D007457:Iodine Radioisotopes; D005934:Glucagon; D007501:Iron