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Transition metal transport in yeast
Anthony Van Ho1, Diane McVey Ward, Jerry Kaplan
1Departments of Internal Medicine University of Utah, School of Medicine, Salt Lake City 84132, USA.
Annual Review of Microbiology
|July 27, 2002
Summary
All cells need transition metals for survival. Research in yeast, Saccharomyces cerevisiae, has significantly advanced our knowledge of how cells transport essential metals like iron and copper across their membranes.
Area of Science:
- Cell Biology
- Biochemistry
- Genetics
Background:
- Transition metals are essential for all eukaryotes and most prokaryotes.
- Understanding cellular metal transport is crucial for various biological processes.
- The budding yeast Saccharomyces cerevisiae serves as a model organism for studying fundamental cellular mechanisms.
Purpose of the Study:
- To elucidate the mechanisms of transition metal transport across the plasma membrane.
- To detail how cells acquire essential metals such as iron, copper, manganese, and zinc.
- To investigate the regulation of metal transport at transcriptional and posttranslational levels.
Main Methods:
- Genetic approaches in Saccharomyces cerevisiae.
- Biochemical analyses of metal transport pathways.
- Comparative studies across different species.
Main Results:
- Detailed understanding of iron, copper, manganese, and zinc acquisition in yeast.
- Identification of regulatory mechanisms controlling metal transport.
- Validation of yeast as a model for metal transport in higher eukaryotes.
Conclusions:
- Studies in Saccharomyces cerevisiae have significantly advanced the understanding of eukaryotic metal transport.
- Mechanisms of metal acquisition and regulation are conserved across species.
- Yeast research provides a foundation for understanding metal homeostasis in human cells.