title: Beta structure of periodic copolypeptides of L-alanine and glycine. Their relevance to the structure of silks.
mesh_terms: D000409:Alanine; D012831:Bombyx; D003461:Crystallography; D005349:Fibroins; D005998:Glycine; D007259:Infrared Rays; D008854:Microscopy, Electron; D008961:Models, Structural; D010455:Peptides; D011487:Protein Conformation; D014961:X-Ray Diffraction
chemical_list: D010455:Peptides; D005349:Fibroins; D000409:Alanine; D005998:Glycine