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Related Experiment Videos

Fission yeast Cdc37 is required for multiple cell cycle functions.

P K Westwood1, I V Martin, P A Fantes

  • 1Institute of Cell and Molecular Biology, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JR, Scotland, UK.

Molecular Genetics and Genomics : MGG
|December 4, 2003
PubMed
Summary
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Researchers identified a Schizosaccharomyces pombe cdc37 gene homolog essential for cell division. Its depletion causes growth arrest and mitotic defects, revealing its critical role in the cell cycle.

Area of Science:

  • * Molecular and Cellular Biology
  • * Yeast Genetics
  • * Cell Cycle Regulation

Background:

  • * The cdc37 gene is crucial for cell division in various organisms.
  • * Understanding its homologues in different yeast species aids in comparative biology.

Purpose of the Study:

  • * To identify and characterize the Schizosaccharomyces pombe homologue of the cdc37 gene.
  • * To investigate the essentiality and function of this gene in S. pombe cell cycle progression.

Main Methods:

  • * Identification of the S. pombe cdc37 homologue through sequence similarity searches.
  • * Gene transplacement experiments in diploid S. pombe cells.
  • * Tetrad dissection and analysis of gene deletion phenotypes.
  • * Gene product depletion using the regulatable nmt81 promoter.

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Main Results:

  • * The S. pombe cdc37 gene product shows similarity to budding yeast and metazoan Cdc37 proteins.
  • * The gene is essential for viability in S. pombe.
  • * Depletion of the gene product leads to growth and division cessation.
  • * Cells exhibit heterogeneous arrest with mitotic defects and a paradoxical short-cell phenotype.

Conclusions:

  • * The identified S. pombe cdc37 homologue is essential for cell viability and proper cell division.
  • * Its function is conserved across different eukaryotic species, highlighting its fundamental role in cell cycle regulation.