title: The synthetic polytripeptides (Pro-Pro-Gly)10 and (Pro-Pro-Gly)20 form micro-crystalline structures similar to segmental structures formed by collagen.
mesh_terms: D003094:Collagen; D003461:Crystallography; D003720:Densitometry; D005998:Glycine; D046911:Macromolecular Substances; D008854:Microscopy, Electron; D008961:Models, Structural; D010455:Peptides; D011392:Proline; D013194:Staining and Labeling
chemical_list: D046911:Macromolecular Substances; D010455:Peptides; D003094:Collagen; D011392:Proline; D005998:Glycine