insulin peptide hormone, 3d rendering. important drug in treatment of diabetes. chains shaded in different colors, atoms shown as

pdb1trz insulin insuline hexamer hexameric zinc diabetes drug beta cells pancreas glucose blood sugar plasma level metabolism glycogen triglyceride fat metabolic syndrome dimer disulfide proinsulin hypoglycemia hyperglycemia mellitus therapy injection endocrinology endocrinologist structure peptide protein 3d rendering amino acid molecule polypeptide polymer atoms science scientific disease health molecular model