title: Molecular structure of a cyclic tetrapeptide disulfide. A novel 3(10) helical conformation with an S-S bridge.
mesh_terms: D004220:Disulfides / Q000032:analysis*; D008958:Models, Molecular; D010456:Peptides, Cyclic; D011487:Protein Conformation
chemical_list: D004220:Disulfides; D010456:Peptides, Cyclic