title: pK perturbations of nitrophenol-containing reporter groups at the active site of papain.
mesh_terms: D001665:Binding Sites; D055598:Chemical Phenomena; D002621:Chemistry; D006863:Hydrogen-Ion Concentration; D009596:Nitrophenols; D010206:Papain
chemical_list: D009596:Nitrophenols; D010206:Papain