insulin peptide hormone molecule. used in treatment of diabetes. atoms shown as color-coded spheres. conventional per

acid amino atoms beta blood cells diabetes dimer disease disulfide drug endocrinologist endocrinology fat glucose glycogen health hexamer hexameric hyperglycemia hypoglycemia injection insulin insuline level mellitus metabolic metabolism model molecular molecule pancreas pdb1trz peptide plasma polymer polypeptide proinsulin protein science scientific structure sugar syndrome therapy triglyceride zinc