title: Conformational changes of an enzyme protein by low concentration of mercuric ions.
mesh_terms: D001665:Binding Sites; D002118:Calcium; D055598:Chemical Phenomena; D002621:Chemistry; D004789:Enzyme Activation; D004950:Esterases / Q000037:antagonists & inhibitors* / Q000097:blood; D006801:Humans; D008628:Mercury
chemical_list: D004950:Esterases; D008628:Mercury; D002118:Calcium