Metallothionein binds copper, zinc and cadmium.Which of the following sequences relates the strength of the interaction between metallothionein and these metals? (answer format: the most firmly bound metal listed first and least firmly bound metal listed last)

Question

Quizplus · Accepted Answer

Metallothionein is a protein that is thought to play a role in the regulation of essential trace metals such as zinc and copper by controlling the concentration of the free ions of these metals.Metallothionein is known to more firmly bind copper than zinc.Cadmium is a toxic trace metal that binds more firmly to metallothionein than either copper or zinc, interfering with the usual function of metallothionein in copper and zinc regulation.

Metallothionein Binds Copper, Zinc and Cadmium