title: Correlation of the masked sulfhydryl group with the essential calcium in taka-amylase A.
mesh_terms: D000478:Alkylation; D000681:Amylases; D002118:Calcium; D055598:Chemical Phenomena; D002621:Chemistry; D002729:Chloromercuribenzoates; D003545:Cysteine; D004492:Edetic Acid; D006863:Hydrogen-Ion Concentration; D013438:Sulfhydryl Compounds; D013696:Temperature
chemical_list: D002729:Chloromercuribenzoates; D013438:Sulfhydryl Compounds; D004492:Edetic Acid; D000681:Amylases; D003545:Cysteine; D002118:Calcium