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Biochemistry of zinc
South African Medical Journal = Suid-Afrikaanse Tydskrif Vir Geneeskunde
|November 26, 1983
Summary
Zinc is essential for enzyme function and protein synthesis, acting as a crucial component in metallo-enzymes. This vital mineral supports normal growth, development, healing, and bone formation.
Area of Science:
- Biochemistry
- Molecular Biology
- Human Physiology
Background:
- Zinc is a critical cofactor for numerous enzymes, influencing their active site structure and overall conformation.
- The protein metallothionein serves as a primary storage and transport mechanism for zinc, facilitating its delivery to various cellular components.
Purpose of the Study:
- To elucidate the multifaceted roles of zinc in enzymatic processes and cellular functions.
- To highlight the necessity of zinc for nucleic acid and protein synthesis pathways.
Main Methods:
- Literature review of biochemical and physiological studies on zinc.
- Analysis of zinc's involvement in metallo-enzyme mechanisms, including pir 1-3 and DNA-dependent RNA polymerase.
Main Results:
- Zinc is integral to the catalytic activity and structural integrity of many enzymes.
- Zinc facilitates nucleic acid and protein synthesis via key metallo-enzymes.
- Metallothionein is identified as a key zinc reservoir.
Conclusions:
- Zinc is indispensable for essential biological processes, including enzyme function and protein synthesis.
- Adequate zinc levels are vital for normal growth, tissue repair, and skeletal development.