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Yeast tubulin genes.

M Yanagida1

  • 1Department of Biophysics, Faculty of Science, Kyoto University, Japan.

Microbiological Sciences
|April 1, 1987
PubMed
Summary
This summary is machine-generated.

Schizosaccharomyces pombe and Saccharomyces cerevisiae possess distinct alpha-tubulin and beta-tubulin genes. These tubulin genes fulfill unique cellular functions, as demonstrated by mutant and gene analyses.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genetics

Background:

  • Tubulin proteins are essential components of the cytoskeleton in eukaryotic cells.
  • Alpha-tubulin and beta-tubulin subunits polymerize to form microtubules, crucial for cell division, intracellular transport, and cell shape.
  • Different organisms exhibit variations in tubulin gene number and function.

Purpose of the Study:

  • To investigate the specific cellular roles of alpha-tubulin and beta-tubulin genes in Schizosaccharomyces pombe and Saccharomyces cerevisiae.
  • To compare the functional divergence of tubulin genes between these two model yeast species.

Main Methods:

  • Utilized tubulin mutants to assess cellular phenotypes.
  • Employed cloned tubulin genes for functional analysis.

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  • Comparative genomics and molecular biology techniques were applied.

    • Main Results:

    • Identified two distinct alpha-tubulin genes and one beta-tubulin gene in both Schizosaccharomyces pombe and Saccharomyces cerevisiae.
    • Demonstrated that these tubulin genes play differential roles in cellular processes within each organism.
    • Highlighted variations in tubulin gene function between the two yeast species.

    Conclusions:

    • The distinct alpha-tubulin and beta-tubulin genes in Schizosaccharomyces pombe and Saccharomyces cerevisiae are not redundant and have evolved specialized functions.
    • Understanding these functional differences provides insights into microtubule dynamics and cytoskeletal organization in eukaryotes.