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Biochemistry

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Affinity Of Cadmium Versus Zinc For The Carbonic Anhydrase Active Site, Rachel Phan Jan 2022

Affinity Of Cadmium Versus Zinc For The Carbonic Anhydrase Active Site, Rachel Phan

Honors Scholars Collaborative Projects

Cadmium is a heavy metal found in tobacco plants, nickel-cadmium batteries, and as a byproduct of metal mining. The similarities between the properties of zinc ions and cadmium ions in proteins due to their 2+ charges may cause displacement of zinc by cadmium if encountered and has been shown to do so in several transcription factors. Cadmium’s ability to replace zinc- a metal found in around 3,000 human proteins- is a cause for concern, especially due to its toxicity, long half-life in the body, and larger size.

Carbonic anhydrase is an important metalloprotein protein that relies on a central zinc(II) …