title: Determination of protein molecular weight, hydration, and packing from crystal density.
mesh_terms: D003460:Crystallization; D008970:Molecular Weight; D011487:Protein Conformation; D011506:Proteins / Q000032:analysis*; D012997:Solvents; D014867:Water / Q000032:analysis
chemical_list: D011506:Proteins; D012997:Solvents; D014867:Water