الكاتب: Multiple References

Zinc is a constituent of a number of metalloenzymes. These include carbonic anhydrase, calf thymus DNA polymerase, carboxypeptidase A and R, alcohol dehydrogenase, a mannosidase, lactic dehydrogenase, a1 kaline phosphatase, and many others. In addition several other enzyme complexes are activated by zinc. important in the activity of some hormones eg. insulin. Probably because of its importance in so many enzyme and hormone systems and in structural complexes, zinc is involved in the metabolism of nucleic acids, carbohydrates, lipids and proteins. The homeostatic mechanism involving zinc disposition and its role in metabolism generally i s s t i l l very poorly understood.