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Trace element-gene interactions
1Division of Biochemical Sciences, Rowett Research Institute, Bucksburg, Aberdeen, U.K.
Nutrition Reviews
|August 1, 1992
Summary
Gene expression controlling trace element balance relies on element availability, impacting growth and development. Zinc is crucial for gene regulation and fetal development, with mechanisms involving zinc-finger proteins and mRNA structures.
Area of Science:
- Biochemistry
- Molecular Biology
- Genetics
Background:
- Gene expression for trace element metabolism is regulated by element availability.
- Mechanisms include metal-activated transcription factors and mRNA structural elements.
- Zinc is essential for protein function, including zinc-finger transcription factors.
Purpose of the Study:
- To examine the evidence linking zinc's role in gene expression to its importance in growth and fetal development.
- To explore the underlying molecular mechanisms of zinc-dependent gene regulation.
Main Methods:
- Review of existing literature on trace element regulation and gene expression.
- Analysis of the role of zinc-finger proteins in transcriptional control.
- Examination of mRNA structure and translation regulation in response to zinc availability.
Main Results:
- Gene expression is tightly controlled by trace element levels through various regulatory pathways.
- Zinc-finger proteins require zinc ions for DNA binding and transcriptional activity.
- Zinc deficiency impacts growth and fetal development, suggesting critical roles in gene expression during these processes.
Conclusions:
- Trace element availability significantly influences gene expression via sophisticated regulatory networks.
- Zinc is indispensable for normal growth and fetal development, mediated by its essential role in gene expression regulation.
- Understanding these mechanisms is key to addressing deficiencies and developmental issues.