title: Interaction of calcium ions with gastrin fragments of increasing chain length.
mesh_terms: D002118:Calcium / Q000378:metabolism*; D002942:Circular Dichroism; D005755:Gastrins / Q000378:metabolism*; D010446:Peptide Fragments / Q000378:metabolism*; D011487:Protein Conformation; D013329:Structure-Activity Relationship
chemical_list: D005755:Gastrins; D010446:Peptide Fragments; D002118:Calcium