title: Crystalline papain derivative containing in intramolecular mercury bridge.
mesh_terms: D003461:Crystallography; D003545:Cysteine; D004492:Edetic Acid; D005470:Fluorometry; D007700:Kinetics; D008628:Mercury; D010206:Papain; D011233:Precipitin Tests; D013053:Spectrophotometry; D013440:Sulfides
chemical_list: D013440:Sulfides; D004492:Edetic Acid; D010206:Papain; D008628:Mercury; D003545:Cysteine