title: Protein densities from X-ray crystallographic coordinates.
mesh_terms: D002268:Carboxypeptidases; D002918:Chymotrypsin; D002919:Chymotrypsinogen; D006454:Hemoglobins; D009113:Muramidase; D009211:Myoglobin; D011487:Protein Conformation; D012260:Ribonucleases; D013381:Subtilisins; D014961:X-Ray Diffraction
chemical_list: D006454:Hemoglobins; D009211:Myoglobin; D002919:Chymotrypsinogen; D012260:Ribonucleases; D009113:Muramidase; D002268:Carboxypeptidases; D013381:Subtilisins; D002918:Chymotrypsin