has role has role polypeptide heterodetic cyclic peptide metabolite peptide hormone calcitonin Calcitonin, salmon A 32-membered heterodetic cyclic peptide comprising the sequence Cys-Ser-Asn-Leu-Ser-Thr-Cys-Val-Leu-Gly-Lys-Leu-Ser-Gln-Glu-Leu-His-Lys-Leu-Gln-Thr-Tyr-Pro-Arg-Thr-Asn-Thr-Gly-Ser-Gly-Thr-Pro-NH2 cyclised by a disulfide bridge between the two Cys residues at positions 1 and 7. KEGG:D00249 Salmotonin Thyrocalcitonin (salmon) cyclo-[Cys-Ser-Asn-Leu-Ser-Thr-Cys]-Val-Leu-Gly-Lys-Leu-Ser-Gln-Glu-Leu-His-Lys-Leu-Gln-Thr-Tyr-Pro-Arg-Thr-Asn-Thr-Gly-Ser-Gly-Thr-Pro-NH2 KEGG:C06865 Salmon calcitonin-(1-32) Cibacalcin CHEBI:3306 Calcitonin DrugBank:DB00017 Salmon calcitonin Wikipedia:Calcitonin bone density conservation agent