title: Sodium ion binding to pepsin and other proteins.
mesh_terms: D002850:Chromatography, Gel; D004792:Enzyme Precursors; D006863:Hydrogen-Ion Concentration; D007477:Ions; D007782:Lactoglobulins; D008433:Mathematics; D009113:Muramidase; D010434:Pepsin A; D011485:Protein Binding; D012964:Sodium; D012975:Sodium Isotopes
chemical_list: D004792:Enzyme Precursors; D007477:Ions; D007782:Lactoglobulins; D012975:Sodium Isotopes; D012964:Sodium; D009113:Muramidase; D010434:Pepsin A