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Chemistry, 16.10.2019 05:20 Nowellkwaku
Many enzymes are inhibited irreversibly by heavy metal ions such as hg2+ , cu2+ , or ag+ , which can react with essential sulfhydryl groups to form mercaptides. enz−sh+ag+⟶enz−s−ag+h+ the affinity of ag+ for sulfhydryl groups is so great that ag+ can be used to titrate −sh groups quantitatively. to 10.0 ml of a solution containing 1.3 mg/ml of a pure enzyme, an investigator added just enough agno3 to completely inactivate the enzyme. a total of 0.436 μmol agno3 was required. calculate the minimum molecular weight ) of the enzyme.
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Many enzymes are inhibited irreversibly by heavy metal ions such as hg2+ , cu2+ , or ag+ , which can...
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