title: Quaternary structure of proteins.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D007477:Ions; D008956:Models, Chemical; D008961:Models, Structural; D008970:Molecular Weight; D011485:Protein Binding; D011489:Protein Denaturation; D011506:Proteins; D013438:Sulfhydryl Compounds; D013816:Thermodynamics
chemical_list: D007477:Ions; D011506:Proteins; D013438:Sulfhydryl Compounds