Description_x000D_ Amino Acid Sequence_x000D_ Cys-Gly-Asn-Leu-Ser-Thr-Cys-Met-Leu-Gly-Thr-Tyr-Thr-Gln-Asp-Phe-Asn-Lys-Phe-His-Thr-Phe-Pro-Gln-Thr-Ala-Ile-Gly-Val-Gly-Ala-Pro-NH2 [Disulfide Bridge: 1−7]_x000D_ Application_x000D_ Calcitonin human has been used as a positive control in in vivo study of HLA-A(*) 02.01 (HHD) mice injected with PTH-rP peptides. The product has also be used as a test compound for studying the effects of calcitonin deficiency and calcitonin substitution on particle-induced osteolysis in Calca -/- mice._x000D_ Calcitonin human has been used to study its ability to stimulate cAMP production post transfection in mammalian cell by activating human CALCRL (calcitonin receptor like receptor gene)- receptor activity-modifying protein 1 (RAMP1) and CTR (calcitonin receptor)._x000D_ Biochem/physiol Actions_x000D_ Calcitonin, also referred to as thyrocalcitonin, is a 32 amino acid peptide hormone, which is present abundantly in seminal plasma compared to serum. It acts as a first messenger and hence regulates the the production of cAMP as well as mammalian sperm function. It also facilitates the regulation of different isoforms of adenylyl cyclase._x000D_ Hypocalcemic hormone produced by the parafollicular C cells of the thyroid or by the ultimobranchial bodies of nonmammalian vertebrates. Decreases blood calcium and phosphate due to inhibition of resorption by osteoblasts and osteocytes._x000D_ Other Notes_x000D_ 32 amino acid polypeptide, 8 of which are conserved across all species._x000D_ Lyophilized from 0.1% TFA in H2O_x000D_ Preparation Note_x000D_ Calcitonin human dissolves in 1% acetic acid as well as in water at 1 mg/ml to yield a clear, colorless solution.