title: Chemical and biological classification of proteins.
mesh_terms: D001671:Biochemistry / Q000266:history; D001695:Biology / Q000266:history; D002621:Chemistry / Q000266:history; D003460:Crystallization; D004798:Enzymes / Q000145:classification / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D007136:Immunoglobulins / Q000145:classification / Q000266:history; D011506:Proteins / Q000145:classification* / Q000266:history; D012995:Solubility
chemical_list: D004798:Enzymes; D007136:Immunoglobulins; D011506:Proteins