| Class j: Peptides [58231] (120 folds) | 
| Fold j.6: Peptide hormones [58283] (1 superfamily) contains one alpha-helix  | 
Superfamily j.6.1: Peptide hormones [58284] (1 family) ![]() this is not a true superfamily  | 
| Family j.6.1.1: Peptide hormones [58285] (19 proteins) | 
| Protein Calcitonin [58301] (3 species) | 
| Species Chum salmon (Oncorhynchus keta) [TaxId:8018] [144318] (2 PDB entries) Uniprot P01263 83-114  | 
| Domain d2glga1: 2glg A:1-32 [135342] mutant  | 
| Domain d2glha1: 2glh A:1-32 [135343] | 
Timeline for Species Chum salmon (Oncorhynchus keta) [TaxId:8018] from j.6.1.1 Calcitonin: