title: Calculation of molecular volumes and areas for structures of known geometry.
mesh_terms: D004583:Electrons; D046911:Macromolecular Substances; D008433:Mathematics; D008958:Models, Molecular; D008968:Molecular Conformation; D011487:Protein Conformation; D012260:Ribonucleases; D014961:X-Ray Diffraction / Q000379:methods
chemical_list: D046911:Macromolecular Substances; D012260:Ribonucleases; C022542:ribonuclease S