title: Evidence for beta-turn analogs in proline peptides in the solid state. An infrared study.
mesh_terms: D002247:Carbon Isotopes; D004151:Dipeptides; D008433:Mathematics; D008954:Models, Biological; D008961:Models, Structural; D010455:Peptides; D011487:Protein Conformation; D013055:Spectrophotometry, Infrared; D014961:X-Ray Diffraction
chemical_list: D002247:Carbon Isotopes; D004151:Dipeptides; D010455:Peptides