title: The quaternary structure of proteins composed of identical subunits.
mesh_terms: D001665:Binding Sites; D055598:Chemical Phenomena; D002621:Chemistry; D008854:Microscopy, Electron; D008961:Models, Structural; D011108:Polymers; D011506:Proteins; D013816:Thermodynamics
chemical_list: D011108:Polymers; D011506:Proteins